THUNDER TIGER Neptune SB-1 User manual

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
Please read all instructions thoroughly before assembling the kit.
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no water is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4.
INNER STRUCTURE ASSEMBLY

10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in difference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
2mm
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the following procedure to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no wa ter is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4.
INNER STRUCTURE ASSEMBLY

10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in difference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
2mm
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the following procedure to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no wa ter is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4.
INNER STRUCTURE ASSEMBLY

10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in difference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
2mm
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the following procedure to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no wa ter is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should fl oat keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4.
INNER STRUCTURE ASSEMBLY

10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in difference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
2mm
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the followin g procedur e to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
FRONT FLANGE UNIT ASSEMBLY
1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
BAG A
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
BAG B
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no wa ter is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4.
INNER STRUCTURE ASSEMBLY

10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in di fference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
BAG
ABAG A
2mm
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
BOX 1
Power PCB,
qty 1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the followin g procedur e to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

POWER DISTRIBUTION UNIT1.2
1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no wa ter is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4.
INNER STRUCTURE ASSEMBLY

10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in di fference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
BAG
BBAG B
BAG
ABAG A
2mm
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the followin g procedur e to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no wa ter is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4.
INNER STRUCTURE ASSEMBLY

10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in di fference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
BAG
BBAG BBAG B
BAG
BBAG B
2mm
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
BOX
1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
A
A
B
B
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the followin g procedur e to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
REAR FLANGE2.1
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no wa ter is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
BAG C BAG D
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4.
INNER STRUCTURE ASSEMBLY

10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in di fference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
2mm
BAG
CBAG C
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
BOX 1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
BAG
C
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the followin g procedur e to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no water is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4. INNER STRUCTURE ASSEMBLY 
10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in difference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
2mm
BAG
CBAG C
BAG
D
BAG
D
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
BAG
D
M3x16mm
BT Phillip Tap Screw
x 6
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
Servo,S1903,
qty 2
BOX
1
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the following procedure to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench

1.3.1 INSTALLATION OF SWITCH
LINKAG
1.2.4 MOUNTING FRAME1.2.3 1.2.5 UNIT
ASSEMBLY
COMPLETE FRONT FLANGE UNIT ASSEMBLY1.3
REAR FLANGE UNIT ASSEMBLY
2
2.1.1 2.1.2 2.1.3
2.1.4 CONTROL ARM
SERVO UNIT2.2
2.2.1 MOUNTING FRAME 2.2.3 SERVO ARM
OUTER FRAME ASSEMBLY
3
3.2 OUTER RING FRAME
INNER STRUCTURE ASSEMBLY
4
3.3 BOTTOM PLATE 3.4 BRACKET INSTALLATION 3.5 LINKAGE ROD 2ND INNER FRAME W/RECEIVER4.2
4.3.1 MOTOR MOUNTING
5TH FRAME W/SPEED CONTROLLER4.4
COMPLETE INNER FRAMES ASSEMBLY4.5
4.5.1 1ST & 2ND INNER FRAMES
ASSEMBLY
4.5.2 3RD & 4TH INNER FRAMES
ASSEMBLY
4.5.3 5TH INNER FRAME ASSEMBLY 4.5.4 6TH INNER FRAME ASSEMBLY
4.5.5 BALLAST TANK & PRESSURE SENSOR
1.1.3 SWITCH LINKAGE ARM 1.1.4 MOUNTING BOLT & CONE RUBBER
1.2.1 FUSE
CONTROL
LINKAGE ARM
WATER INLET
BOLT
UPPER SEALED
BOLTS
2.1.5 MOUNTING BOLT & CONE RUBBER
3.1 FRONT ELEVATOR BRACKET
2.2.2 SERVOS
122mm
PROPULSION SYSTEM W/REAR
COVER ASSEMBLY
5
5.1 MOTOR W/DRIVE CUP 5.2 MOTOR MOUNTING W/DRIVE SHAFT
COMPLETE HULL STRUCTURE
ASSEMBLY
6
FRONT FLANGE1.1
1.1.2 LOWER SEALED BOLTS
INTRODUCTION
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The
total monetary value under warranty will in no case exceed the cost of the original kit purchased. This warranty does
not cover any components damaged by use or modification. Part or parts missing from this kit must be reported
within 60 days of purchase. No part or parts will be sent under warranty without proof of purchase. To receive part
or parts under warranty, the service center must receive a proof of purchase and/or the defective part or parts. Should
you find a defective or missing part, contact the authorized Thunder Tiger Service/Distributor nearest you. Under no
circumstances can a dealer or distributor accept return of a kit if assembly has started.
No.5220-K
No.5220-F
The contents are subject to change without prior notice due to product improvements and specification changes.
Neptune Submarine KIT & SC
INDEX
Congratulations on your purchase of the Thunder Tiger NEPTUNE SB-1 submarine. The NEPTUNE SB-1 submarine
is the 1st underwater R/C model by Thunder Tiger. Equipped with high technology operating equipment in the inner
hull tube, covered by the brilliantly yellow color outer hull, the NEPTUNE SB-1 will let you enjoy the otherwise hidden,
underwater world.
Adopting a static diving system, operating the Neptune is just like the real thing. The system is driven by a ballast
tank that with a pump &motor unit. Start the pump to induct the water into the ballast tank. Control the amount of
water in the ballast tank, the submarine can dive from the surface and stay underwater in static. Using the propulsion
power unit and full elevator and rudder control, you can drive the submarine graceful sailing underwater. Install a
digital camera (optional) and you can watch the amazing underwater scenes.
Equipped with a auto-detect protecting system, if the system detects low battery power, low transmission signal,
leakage, then the roll pump will auto start to flood the water out of the ballast tank to make the submarine float
back to the surface.
NEPTUNE SB-1 submarine, will bring you to experience the mystery world under water!
POWER
DISTRIBUTION
BOARD
4.3.2 ROLLER PUMP
ITEMS & TOOLS REQUIREMENT
TOOLS
NEEDED FOR
ASSEMBLY
Shaft,
qty 2
Sealed Rubber,
qty 2
FR Flange,
qty 1
Switch Mount,
qty 2
W.P. Bolt,
qty 2
Bolt, M16,
qty 1
Nut, M16,
qty 1
Cone Rubber,
qty 6
Control Arm,
qty 2
Rod Mount,
qty 2
TOOLS
INCLUDED IN
KIT
RADIO SET
CONFIGURATION RADIO CONTROL vs SUBMARINE
MOVEMENT
Throttle
Floating / Diving
Steering
(Forward)
Elevator
(Forward)
Forward Backward
NOTE:
1) The radio show in the drawing is similar to MODE 2 of RC airplanes: throttle is at the left stick and elevator is
at the right one. However, the double recovery stick radio easily allows to shift to Mode 1. Open the inner hull
and exchange the servo connectors at the receiver.
2) Due to it’s more difficult for the RF signal through the water(especially for the high density water like sea..). So
the controllable distance is much shorter than the radio system operating in the surface. Base on our experience,
maximum controllable depth for 40Mhz RF radio system is about 5M.
Nose up
Nose down
INTRODUCTION FOR THE MAIN
DEVICE
■LED INDICATION LIGHT
On the main control PCB unit, there are 3 LED lights are designed to show the current status of the Submarine.
You can watch the light from the right side 1st hull window. Please refer the following chart to get the light
information.
■AUTO-DETECT PROTECTING SYSTEM
Combined with a auto-detect protecting system on the main PCB control board, if the system detects low battery
power, low transmission signal, leakage(water inside hull), then the roll pump will auto start to flood the water
out of the ballast tank to make the submarine float back to the surface. In the same time, the Red LED light will
turn to flash.
■PUMP W/BALLAST FOR THE STATIC DIVING SYSTEM
Base on the Archimedes principle—principle that states a body immersed in a fluid is buoyed up by a force equal
to the weight of the displaced fluid. The principle applies to both floating and submerged bodies.
So base on this principle, equipped with a roll pump with ballast tank device in the inner hull, through the pump
operating system to draw or drain the water into or out of the ballast tank to change the weight of the submarine.
With suitable design of the volume and weight, then it is easy to operate the SB-1 submarine diving or floating
and even static stay under the water. So we call this the static diving system just like the real submarine.
The buoyancy of an object depends, therefore, only upon two factors: the object's volume, and the density of
the surrounding fluid. So when you choose the diffierence water(with diffierence density) to play, you have to re-
adjust the weight unit to make the submarine can be diving and floating smoothly and quickly. Normally, it need
take about 20~30seconds from floating to diving.
OPERATING
■POWER SWITCH
There are 2 main power switch located on the bottom of the
front flange. From the bottom view, the right switch is to control
the main battery power for all the electric devices. The left
switch is prepared for the CCD system that when a CCD
device installed.
■PREPARATION
Please follow the following procedures to do the preparation.
1) Check that no wa ter is inside the hull. If some water is inside, the submarine shouldn’t be used until you
discover the cause of the problem and solve it.
2) Close the front cap and tighten the nuts (sequence: each after the opposite). After locking, the front O-Ring
should appear uniformly flattened against the cap.
3) Place the front nose in position
4) Switch on the transmitter and check TX battery status.
5) Switch on the submarine. Keep the submarine onto the table and check the following functions:
● Check throttle: move left stick up/down and verify that full forward and reverse speed is reached. In centre
position (idle) the propeller should not move. Correct TX trim if necessary
● Check pump: move left stick right and left and verify that the pump starts running and inflates or empties
the bag. You may hear the noise of the motor and also feel the pump action by placing a finger at the water
intake. NOTE: Pump action is on-off and it’s normal that it is not proportional. However, be sure that the
centre idle position of the stick is equally far from left and right working position. Trim if necessary
● Check dive planes (right stick up/down). Verify that stick neutral position corresponds to horizontal dive
planes. Trim if necessary
● Check rudder (right stick left right). Verify that stick neutral position corresponds to straight rudder. Trim if
necessary
● Switch off RX and TX and carry the model at the waterside.
■PRE-LAUNCH CHECK
●Switch on the transmitter. Check again TX battery status.
●Switch on the receiver (main switch). Check no interference from any other RC transmitter
●If the submarine doesn’t switch on, check the fuse and replace if necessary (NOTE: if the fuse is burnt again,
then should be a short circuit inside. Don’t use the model. Open it and search for any electrical problem)
●Check that the front nose is perfectly installed. If it isn’t, any hit during the launch will cause it to fall down into
the water. It will sink, being heavier that the water. Therefore, pay much attention.
●If the camera is not used, check that the cap of the cable connector is tightened. If the camera is used, see
“Camera operation” paragraph.
●Start the pump and empty the bag (left stick to left), until the bag is totally emptied. This will be shown by the
changed noise and the absence of air coming out from the water intake.
OPERATING
■BUOYANCY CHECK & WEIGHT ADJUSTING
●Before using the submarine for the first time, check its correct buoyancy.
●Fill a bath tub with cold water and put the submarine into it
●With the ballast bag completely empty, the submarine should float keeping the turret and a thin part of the
outer hull above the waterline. You can change the weight parts to get the suitable position.
●Check if the submarine has a good trim, staying horizontal and without listing. If necessary adjust the ballast
in the submarine keel. And, adjust the position of the weight parts to make the submarine level without pitch
up or down.
●Please remember that different water conditions (for example, bath tub, swimming pool or lake) have an influence
on the submarine trim due to different water density. Perform a buoyancy check any time you want to use the
submarine in new places.
OPERATING MANTEINANCE AND PERIODICAL
CHECK UP
●Remove the outer hull panels and clean every part
●Before storing the submarine for a long time of non activity, open and keep open the front cap and remove the
battery
●Check the pressure sensor (try to over fill the ballast bag)
●Check the fail safe system (switch off the RC transmitter and see if the rescue system activates)
●Check the low battery safety system
●Check the integrity of inner hull
●Check there is no leakage from the inner linkages and tubing
●Check the dive planes and rudder operating angles. If necessary adjust control rods and TX trims
●Check the O-Ring status and correct tightening
●Check operation of the switches and of all the other water proof exits. Devices must be tightened but must retain
a smooth movement
1.1.1 UPPER SEALED BOLT
Ø15mm
O Ring
Mounting Frame-B,
qty 1
Mounting Frame-A,
qty 1
Ø9.5mm
O Ring
BAG E
M3
Lock Nut
M6x38mm
Hex Head Sscrew
M2x10mm
BT Phillip Tap Screw
Note:
The spring washer & nuts already installed on the Binding Post.
Remove that before assembly.
1.2.2 CHARGING BINDING POST
M4x60mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw
M3x4mm
Socket Head Machine Screw
M3x16mm
BT Phillip Tap Screw
Ø4mm
Spring Washer
Ø9.5mm
O Ring
M3
Lock Nut
M3x6mm
Socket Head Machine Screw
M6x38mm
Hex Head Sscrew
M3x10mm
BT Phillip Tap Screw w/washer
M2.6x8mm
BT Phillip Tap Screw
M3x6mm
Socket Head Machine Screw
Notice:
It need at least 4Ch or above radio
set to operate this model. For the
super combo version(5220-F), the
radio set already be included.
INTRODUCTION 
1
IMPORTANT NOTES & WARNING 
2
ITEMS & TOOLS REQUIREMENT 
2
ASSEMBLY SECTION 
3
1.
FRONT FLANGE UNIT ASSEMBLY

4
1.1 FRONT FLANGE
1.2 POWER DISTRIBUTION UNIT
1.3 COMPLETE FRONT FLANGE UNIT ASSEMBLY
2.
REAR FLANGE UNIT ASSEMBLY

7
2.1 REAR FLANGE
2.2 SERVO UNIT
2.3 COMPLETE REAR FLANGE UNIT ASSEMBLY
3.
OUTER FRAME ASSEMBLY

9
3.1 FRONT ELEVATOR BRACKET
3.2 OUTER RING FRAME
3.3 BOTTOM PLATE
3.4 BRACKET INSTALLATION
3.5 LINKAGE ROD
4. INNER STRUCTURE ASSEMBLY 
10
4.1 1ST INNER FRAME W/MAIN CONTROL PCB
4.2 2ND INNER FRAME W/RECEIVER
4.3 4TH FRAME W/PUMP UNIT
4.4 5TH FRAME W/SPEED CONTROLLER
4.5 COMPLETE INNER FRAMES ASSEMBLY
5. PROPULSION SYSTEM W/REAR COVER ASSEMBLY

14
5.1 MOTOR W/DRIVE CUP
5.2 MOTOR MOUNTING W/DRIVE SHAFT
5.3 MOTOR UNIT W/ REAR COVER PLATE
6. COMPLETE HULL STRUCTURE ASSEMBLY

15
6.1 OUTER FRAME W/ SPACER TUBES
6.2 MAIN HULL TUBE W/INNER STRUCTURE & OUTER FRAME
6.3 FRONT & REAR FLANGE CAP ASSEMBLY
6.4 FRONT & REAR COVER PLATE ASSEMBLY
6.5 WEIGHT INSTALLATION
7. EXTERNAL BODY ASSEMBLY

16
7.1 FRONT CABIN ASSEMBLY
7.2 REAR CONE UNIT ASSEMBLY
7.3 LEFT & RIGHT SIDE HULL
7.4 COMPLETE MODEL ASSEMBLY
CONFIGURATION 
21
RADIO CONTROL VS SUBMARINE MOVEMENT 
22
INTRODUCTION FOR THE MAIN DEVICE 
23
OPERATING 
24
MAINTENANCE AND PERIODICAL CHECK UP 
27
SERVICE 
27
1. When turning radio on, first turn on the transmitter and extend the transmitter antenna.
2. Then turn on the receiver (The switch is located on the bottom of the front flange unit).
When turning off, first turn the receiver off, then the transmitter.
One 12V sealed Lead-Acid battery is included in the kit to supply all the requiring battery
power for all the electric equipment and power drive system. During charging process, a
all night slow charger also be enclosed in the box. Please follow the operating description
to execute the battery charging process. DO NOT leave the charger unattended, DO NOT
operate the charging process in flammable environment.
RADIO
1. This radio control submarine is not a toy. If not properly assembled and operated, it is
capable of causing property damage. Thunder Tiger and it’s distributor have no control
over damage resulting from shipping, improper construction, or improper usage.
2. You must choose the suitable and safety area to play the submarine. To avoid the
dangerous of falling into the water.
BATTERY
CHARGING
WARNING
x 2
M10
Nut
Ø10mm
Spring Washer
x 1 x 2 x 2
M3x6mm
M3x8mm
1.3.2 INSTALLATION OF POWER
DISTRIBUTION UNIT
M6
Nut
M3x12mm
BT Phillip Tap Screw w/washer
Ø6mm
Spring Washer
1ST INNER FRAME W/WATER PUMP CONTROL PCB4.1
4.3.3 FRAME
W/PUMP UNIT
L30mm(4)
L60mm(2)
L30mm(6)
L60mm(3)
L30mm(3)
L60mm(2)
x 2 x 2
M3x6mm
Socket Head Machine Screw
M3x8mm
x 2
Collar,
qty 4
Mounting Plate,
qty 1
Plastic Tube, L30mm,
qty 2
Linkage Rod, L55mm,
qty 2
Fuse Holder,
qty 1
Bind Post(Red),
qty 1
Bind Post(Black),
qty 1
Fuse,
qty 1
x 6
x 2 x 2 x 4
M4
Nut
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
x 4
x 2 x 6 x 4 x 4
M3x3mm
Set Screw
Ø3mm
O Ring
Rod Mount,
qty 5
Nut,M16,
qty 1
Linkage Rod,
qty 2
Water Tube,
qty 1
Bolt,M16,
qty 1
Water Inlet,
qty 1
Mounting
Frame-B,
qty 1
Mounting
Frame-A,
qty 1
Linkage Rod,
L55mm, qty 2
Spacer Tube,
L30mm, qty 2
Rod Mount,
qty 2
Servo Arm,
qty 2
Cone Rubber,
qty 6
RR Flange,
qty 1
Sealed Rubber,
qty 2
Control Arm,
qty 4
Cone Rubber,
qty 2
W.P. Bolt,
qty 2
x 1 x 2 x 2 x 2 x 2
M10
Nut
Ø10mm
Spring Washer
M3x6mm
Socket Head Machine Screw
x 2
M3
Lock Nut
x 3 x 6
x 8 x 2 x 2
M3
Lock Nut
FR Elevator Linkage,
qty 1
FR Elevator Bracket,
qty 1
Arm,
qty 1
FR Elevator Rod,
M6/L110mm, qty 1
Rod Mount,
qty 1
Screw Rod,
M6/L416mm, qty 4
Outer Ring Frame,
qty 2
AL Tube, L150mm,
qty 4
AL Tube,L43.5mm,
qty 2
Bottom Plate,
qty 1
Bottom Rubber,
qty 4
x 2
M3
Lock Nut
x 12 x 16
Ø6mm
Washer
3-Way
Connector,
qty 1
Plastic Tube,
L60mm, qty 8
Spacer Collar,
qty 4
Spacer Washer,
qty 3
Screw Bolt,
M4/L335, qty 2
Screw Bolt,
M4/L210, qty 1
Screw Bolt,
M4/L240, qty 1
Connector,
qty 1
Pump Motor
Mount, qty 1
1st Inner
Frame, qty 1
2nd Inner
Frame, qty 1
4th Inner
Frame, qty 1
6th Inner
Frame, qty 1
3rd Inner
Frame, qty 1
5th Inner
Frame, qty 1
Plastic Tube,
L30mm, qty 17
Pump Mount,
qty 1
Water Tube,
L220, qty 1
Case,
qty 1
Water
Tube,
qty 1
Ballast,
qty 1
Pump Roller,
qty 3
Pump Cap,
qty 1
x 4 x 2 x 2 x 2
M6
Nut
Ø6mm
Washer
x 1
M3x4mm
Socket Head Machine Screw
M3x8
CT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3x10
BT Phillip Machine Screw
x 2
M3
Lock Nut
x 2
M4
Nut
x 4
Ø4mm
Washer
x 4
Drive Cup(motor),
(IDØ3.17mm)
qty 1
Dogbone,
qty 1
Drive Cup,
(IDØ4mm)
qty 1
Drive Shaft,
qty 1
RR Cover Plate,
qty 1
Sealed Rubber,
qty 1
Motor Mount,
qty 1
M3x3mm
Set Screw
x 1
Ø3mm
O Ring
x 2
M3x12mm
BT PHILLIP TAP SCREW w/washer
x 2
7.2.1 HORIZONTAL TAIL FIN 7.2.2 DRIVE SHAFT HOLDER
COMPLETE MODEL ASSEMBLY
7.4.2 PROPELLER
7.4.3 TAIL ELEVATOR 7.4.4 RUDDER
M3x3mm
Set Screw
x 1
M3x4mm
Socket Head Machine Screw
x 2
M3x10mm
BT Phillip Tap Screw
x 4
7.4.1 FRONT CABIN & REAR CONE
M3x6mm
Socket Head Machine Screw
x 1
7.4.5 ELEVATOR & RUDDER
CONTROL LINKAGE
7.4.6 SIDE HULL W/TOP CANOPY
INSTALLATION
M3x4mm
Socket Head Machine Screw
x 2
M3x8mm
BT Phillip Tap Screw
x 8
M3x12mm
BT Phillip Tap Screw
x 4
7.4.9 HANDLE BAR ASSEMBLY 7.4.10 HANG ON THE HANDLE BAR
7.4.8
IMPORTANT NOTES & WARNING
Most parts in the kit version are organized and packed in difference bags & Box. The packages are according to
the assembly step and all the bag/box No are shown on the outside of the package. Basically, the electronic are
package in Box1~Box4 and other parts are packaged in the Bag-A~ Bag-I. For all the screws, nuts, O-ring …standard
parts are also packed in one bag. In each assembly step, the need standard parts and BAG are shown on the bottom
of each assembly icons. Do not open all the bags at once. Just open and prepare the right pats from the bag and
correct standard parts before each assembly step. Then follow the drawing/information are shown in each step to
execute the assembly process.
ASSEMBLY SECTION
2mm
M4x60mm
Hex Head Sscrew
x 2
M4
Nut
Ø4mm
Spring Washer
x 2 x 2
BAG
D
M3x16mm
BT Phillip Tap Screw
x 6
M3x4mm
Socket Head Machine Screw
x 4
COMPLETE REAR FLANGE UNIT ASSEMBLY2.3
BAG
EBAG E
19mm
x 1
M6 Screw Rod,
L416mm(4)
M3x8mm
BT Phillip Machine Screw
x 2
REAR CONE UNIT ASSEMBLY7.2
LEFT & RIGHT SIDE HULL7.3
7.4
7.1.1 7.1.2 FRONT CANOPYCABIN WINDOW
INSTALLATION
M2x8mm
BT Phillip Tap Screw
x 8
M3x10mm
BT Phillip Tap Screw
x 3
7.1.3 SPRING CLIPS
M3x8
BT Phillip Machine Screw
x 3
Note: Left side is shown in the drawing.
Right side has the same assembly process.
M3x8mm
M3x12mm
7.4.7 TOP CABIN HOLDER
Thunder Tiger strives to bring you the highest level of quality and service we can provide. We race and test our
products around the world to bring you state-of-the-art items. Thunder Tiger guarantees that you should enjoy many
hours of trouble free use from our R/C products. Thunder Tiger products have been sold worldwide through the
authorized distributors that are supported directly and rapidly from Thunder Tiger. You may find that Thunder Tiger
is always pursuing to explore new items creatively with highest quality. To update the latest product information
and to get the best technical support, please feel free to contact your local hobby shops or Thunder Tiger authorized
distributor.
Power PCB,
qty 1
Servo,S1903,
qty 2
Water Pump
Control PCB, qty 1
Speed
Controller,
qty 1
Speed
Controller
Wire, qty 1
Battery
Connecting
Wire, qty 1
Leakage
Detecting
Wire, qty 1
Servo
Connecting
set, qty 1
Pressure
Sensor, qty 1
Propulsion Motor,
qty 1
FR Cover
Plate, qty 1
Collar,
qty 4
AL Tube,
L101mm,
qty 2
AL Tube,
L40mm,
qty 2
AL Tube,
L94mm,
qty 4
Rod,
L220mm,
qty 1
Main Tube,
qty 1
Battery
Weight, A,
qty 2
Weight, B,
qty 1
Weight, C,
qty 1
WEIGHT INSTALLATION
6.5
Note: The weight position have to be
adjusted on the correct position.
6.4 FRONT & REAR COVER PLATE ASSEMBLY
Note: O-ring put on the FR/RR Flange unit first.
Handle Rod,
qty 2
Handle Bar,
qty 1
Rudder
Linkage
Rod, qty 1
RR Elevator
Linkage Rod,
qty 1
Outer Hull,
(L), qty 1
Outer Hull,
(R), qty 1
Hull
Window,
qty 6
Window
Cover,
qty 6
Top Cabin,
qty 1
Top Cabin
Frame,
qty 1
FR Elevator,
qty 2
FR Elev.
Mounting
Tube, qty 2
6.3 MOTOR UNIT W/ REAR COVER PLATE
6.1 OUTER FRAME W/ SPACER TUBES
JJ6071.V2
Licensed by AM-CUBE
Manufactured by THUNDER TIGER CORP.
http://www.thundertiger.com
Ø4mm
O Ring
x 1 x 1
Ø15mm
O Ring
AL Tube,
L150mm(4) L210mm
L240mm L335mm(2)
L30mm(4)
L60mm
IDØ3.17mm
IDØ4mm
L94mm(4)
L101mm(2)
L40mm(2)
Weight, AWeight, B Weight, C
4TH FRAME W/PUMP UNIT4.3
Double-Sided
Foam, qty 2
Double-Sided Foam
(for pressure sensor),
qty 1
AL Tube,
L43.5mm(2)
Pump Motor
Spacer Washer
M4 Nut
Ø4 Washer
Spacer
Washer
6.2 MAIN HULL TUBE W/INNER
STRUCTURE & OUTER FRAME
Main Tube
INSTALLATION OF THE FRONT
ELEVATOR
■LAUNCH
●Find a good launch position, with the possibility to stand stable with no risk of falling into the water. The water
surface should be easily reachable and must not be too low.
●Insert the handle into the holes of the external hull. Be sure that the hooks are connected to the metal rod of
the inner hull and not only to the outer plastics .
●Lift the sub and gently place it into the water.
●Wait until the front nose and the rear cone are totally full of water. These are free-flood compartments and it’s
normal they become totally full of water, no large air bubble should remain inside them.
●At this point, disconnect the handle.
NOTE: Pay attention not to let the handle fall into the water, because it will sink!
●Start piloting your Neptune SB-1.
■RECOVERY
●Start the pump in order to have the ballast bag completely empty
●Pilot the sub along the side of the swimming pool or lake, in a reachable position.
●Connect the hooks handle to the lifting points inside the slots of the hull. Be sure to clamp the inner metal rod
and not only the plastic hull.
●Lift the submarine out of the water. During this phase, it will be significantly heavier, because of the water trapped
between inner and outer hulls. Then, this water will be discarded and the operation will be simpler. Place the
sub on a horizontal surface
●Switch the submarine and the transmitter off.
●Have a quick inspection of the hull and check no part has been damaged or lost.
Ballast empty 80% Ballast full 100% Ballast full
4.5.6 SERVO/WIRE & BATTERY INSTALLATION
Ballast Water inlet/outlet tube
(RR Flange)
Pressure
Sensor
3-Way
Pump
One-Way
Connector
Connecting of water tube
Spacer
Collar(4)
M4 Nut(4)
Ø4mm
Washer
Right turn
Left turn
Note: Drive of water pump.
Draw water for diving.
Drain water for floating.
CONNECTING OF ELECTRONIC
UNIT & Battery
■USAGE
●All the controls are described above.
●Rudder and throttle functions are similar to any other R/C boat.
●This submarine is capable to perform both static and dynamic dive.
●For a full static dive, keep the motor idle and start the pump flooding the bag. You will see the waterline at the
turret become higher and higher until the entire submarine will be submerged and will go down vertically to
the bottom. The opposite command will cause the pump to empty the ballast bag and the submarine will raise
to the surface.
●Dynamic dive is possible thanks to the speed of the boat and the action of the dive planes. As there’s so much
buoyancy to win, for better result we recommend to reduce the buoyancy and partially fill the ballast bag with
water. The ideal situation is reached when only the top ring of the turret is out of the water: at this point, start
the motor full forward and set the dive planes to the “down” position: the submarine will dive and you will have
dynamic control of the depth by operating the dive planes.
●Pay attention to any collision. If the submarine is running in a swimming pool or any other place with hard vertical
walls, avoid any hit with these hard structures. The rudder might be damaged or even the front nose might be
broken.
●Also, be aware to avoid algae bloom, leaves or any other seaweed that may be ingested by the propeller. If
leaves or other are wound around the propeller shaft, its efficiency will be greatly reduced and the stress on
the motor will be much higher. This situation should be avoided in order not to have critical damages on the
propulsion system.
●If the submarine raises to the surface on its own, it’s possible that some safety function has switched on. Take
the submarine out of water and check the alarm code from the RED flashing LED
●If the submarine raises to surface because of low battery, you will discover much lower motor power and no
capability of diving. At this point, recover immediately the sub before the battery is completely empty (Please
remember that the receiver is BEC-equipped and the power source is the same also for the electronics!).
■CAMERA OPERATION (OPTIONAL)
●Please refer the following procedure to connect the camera
operating system.
1) Dismantle the power distribution unit from the front flange
unit.
2) Install the Cable plug on the front Flange Upper Sealed Bolt.
3) Install the camera on the on the Power Distribution Unit and
connect the yellow connector with the Cable Plug.
4) Refer Assembly 1.3 section to assembly the Power Unit and
Front Flange.
NOTE: Please refer the optional parts list in the catalogue to order the relative camera system parts.
●To use the camera, switch on the camera switch, then unscrew the cap on the camera cable connector and
tightly screw the RCA cable. The free end of the cable must be connected to the Polyphemus receiver AV IN
port, or to a similar device.
●Check the focus of the camera and, if necessary, adjust it.
●Please remember that the signal coming from the camera is analog: if you wish to make digital movies, you
have to use an analog/digital video converter (sold separately)
●After the use of the camera, switch off the camera switch and screw the cap on the camera cable plug.
Battery Fuse
Power Distribution PCB
Charging Binding Post
Water Pump
Water Pump Control PCB
Pressure Sensor
Leakage Detecting Wire
Receiver
Servo Connecting Set
Propulsion Motor
Speed Controller
Servo (rudder & elevator)
Battery Connecting Wire
Speed Controller Wire
Camera Set(optional)
Speed Controller
CONNECTING OF THE
SERVO CONNECTING SET
Elevator Servo
Rudder
Servo
NOTE
Alltheblackwireineach connectors
shouldbeputonthetop.
CONNECTING OF THE WIRES ON THE RECEIVER
Due to the difference radio system(Futaba, JR......) the wires have to be installed into the correct
channel ports on the receiver. All the wires have the difference colors, please refer the following wire
function table to do the installation.
Fill the grease
into the inner
hole about 1/3 full.
M3x16mm
BT P.MACHINE SCREW W/Wahser
x 3
O Ring Set.
x 1
Ø3mm
Washer
x 3
M3
Lock Nut
x 3
Ø3mm Washer(3)
5.3 MOTOR UNIT W/ REAR COVER PLATE
Note:
1. O-ring put on the FR/RR Flange unit first.
2. There is a little clearance for the tubes to move after
assembly. It’s correct and means the seal O-ring on
the flange unit already be fully compressed to get the
good waterproof function.
Grease
5-way Nut Wrench
Hex Wrench
1.5mm, 2mm, 2.5mm,
3mm, 5mm
Thread Locking GluePhillips type screwdrivers & hex wrenches
(Ref: TTR screw Drive Set )
Needle Nose Pliers Lexan Cutter/
Scissors
Wire Cutter
Wrench 17/19mm4-way Cross Wrench