Audacity Models Tiger 50 User manual

Tiger 50 Remote Control Model Helicopter - Assembly and Maintenance Manual
CCPM
Cyclic
Collective
Pitch
Mixing
.
.
.
.
PLEASE READ THIS MANUAL FULLY AND CAREFULLY!
This helicopter model is not a toy and is not suited for children.
Contact with the rotating parts of this model helicopter may
cause bodily harm and/or death as well as property damage.
You, and you alone, are responsible for the safe operation of
this remote controlled model helicopter. Audacity Models
assumes no liability for harm or damage that could occur from
the assembly and/or use/misuse of this product. This manual
does not serve as a final and total instruction in the safe and
proper assembly and operation of remote controlled models.
Audacity Models . . . where performance exceeds expectations!
For technical updates, and
additional information visit:
www.audacitymodels.com
Entire Contents © Copyright 2004

WARNING
INDEX
2
6
Assembly Steps Page
Assembly Steps
Carefully follow the 8 major assembly steps in the correct sequence.
Page
You are about to embark on a wonderful adventure into the world of remote controlled (R/C)
models. However, this helicopter model is not a toy and is not suited for children. A properly
assembled and operated remote controlled model helicopter can bring many hours of enjoyment
and pleasure, but even if properly assembled and operated, the nature of an R/C system means
the radio-link between transmitter and receiver may fail, in which case even competent operators
are no longer in control. In addition, due to operator neglect or accident, worn or damaged parts
may fail causing lack of control. Contact with the rotating parts of this R/C model helicopter
may cause bodily harm and/or death as well as property damage. In addition, the overall mass
of the model in motion means contact with non-rotating parts may cause bodily harm and/or
death as well as property damage.
You, and you alone, are responsible for the safe operation of this R/C model helicopter and
Audacity Models assumes no liability for harm or damage that could occur from the assembly
and/or use/misuse of this product. This manual does not serve as a final and total instruction
in the safe and proper assembly and operation of remote controlled model helicopters. Always
have personal supervision by a modeler experienced in the safe and proper handling of R/C
model helicopters.
1.1 Clutch Bell
1.2 Tail Drive
1.3 Elevator Link
1.4 Fuel Tank
2.1 Servo-Boss
2.2 Main Frame
2.3 Avionics Platforms
3.1 Landing Gear
3.2 Main Gear & Shaft
3.3 Engine Mount & Fan
3.4 Clutch & Extension
3.5 Engine & Start Shaft
3.6 Hex Adapter / Muffler
4.1 Swashplate / Washout
4.2 Head & Flybar Arm
4.3 Flybar Installation
4.5 Rotor Control Rods
5.1 Tail Gear Box & Belt
6
7
7
8
9
10
11
12
13
13
14
14
15
16
16
17
18
4.4 Flybar Paddles 17
8.3 Canopy & Windshield
8.2 Main Blades
8.1 Blade Balance
7.2 Linkages (Starboard)
7.1 Linkages (Port)
6.4 Avionics Isolation
6.3 T/R Pushrod Guides
6.2 Tail Rotor Pushrod
6.1 Servo Installation
5.9 Boom Support Clamp
5.8 Tail Boom Supports
5.7 Tail Boom Assembly
5.6 Vertical Fin
5.5 Tail Rotor Grip
5.4 Tail Rotor Hub
5.3 Tail Pitch Lever
5.2 Tail Output Shaft18
19
19
20
20
21
22
22
23
24
24
25
26
27
28
29
29
0.0 Preparation For Assembly 1-5
9.0 Set-up Tips
11.0 Exploded Views & Parts Lists
12.0 Accessories
44-58
30-43
59-61

3
ITEMS NEED TO COMPLETE
Helicopter Fuel
(15%-30% Nitro)
6mm Hex Start Shaft
Cyclic/Collective
Servo Control
Horns
Servo Extensions
(2 each - 4” Long)
12” Fuel Tubing
(1/8” Silicone)
Fuel Filter
(3-way)
1.2V Ni-Start Battery12V Gell-Cell Battery
and Electric Starter
50-class Glo-Fuel Engine
Drive Washer Not Included
with model helicopter
Glo-Fuel Pump
6-channel - or greater
R/C Helicopter System
w/120o CCPM capabilities
Gyroscope
(x3)

4
Phillips Screw Driver Nut Drivers (4mm/5.5mm/7mm) Allen Drivers (1.5mm/2mm/2.5mm/3mm)
Drill Bit 1/16” Auger - or - Reamer Small Hammer
Wrench (5.5mm/6mm)
Lexan Scissors Needle-nose Pliers
Hobby Knife
Ruler (metric) Greater Than 30cm 4-way Wrench (8-12mm)
Pitch Gauge
Thread Locker Is Used To Keep Assemblies Tight As Vibration May Cause Them To Loosen
Semi-permanent
BLUE Thread Locker
Due to the vibrations caused by operation, nuts, bolts, and set screws may have a tendency to loosen.
Repeated tightening is not the solution, instead, the careful application of thread locker is required.
Thread locker works something like a glue. There are various types of thread locker, from permanent
types which are usually RED in color, to semi-permanent types which are usually BLUE in color. BLUE
thread locker is what is recommended. Thread locker is not needed with nylon-lock nuts, nor where
metal screws thread into plastic. Finally, be careful to remove all traces of oil or grease by applying a
degreaser or acetone to bolts prior to assembly - clean with a paper towel until all traces are gone.
NOTE: Use care when using thread locker near bearing areas as
contamination may ruin the bearing and cause it to seize.
Never use thread locker on metal to plastic
Optional Tools and Accessories:
- Dial Indicator
- Ball Link Pliers
- Piston Locking Tool
- Calipers
- 10mm deep-well thin wall socket
- 2 ea. - 5/16” or 8mm 1/4” drive socket
- 2 ea. - 1/4” drive short extensions and 1/4” handles or drives
- one sheet of thin typing paper
TOOLS NEEDED FOR ASSEMBLY

Various size nuts, bolts, set screws, and washers are used in the
Tiger 50 helicopter. Metric dimensions are given, first specifying
the diameter of the bolt or screw, then the length of the
bolt or screw. Washers and nuts are identified by the ID (inner
diameter) of the piece. Bearings are identified in order, by ID,
(inner diameter), then OD (outer diameter), then W (width).
Below are some examples of the types of hardware used.
M3mm Nylon Lock Nut
M2mm Hex Nut
M3x8mm Socket Head Bolt
M2x8mm Phillips Head Screw M2x8mm Self-tapping Screw M4x4mm Set Screw
M3mm Lock Washer M3mm Flat Washer
* NOTE: Do not use thread locker when a metal screw goes
into plastic as this may damage the plastic and cause failure.
Bearing L-1910ZZ
M10x19x7mm (ID, OD, W)
ID
OD W
HARDWARE IDENTIFICATION
5

1.1
CLUTCH BELL
6
1.2
TAIL DRIVE
* NOTE: Beveled side
faces belt-side of pulley.
* NOTE: Thoroughly clean the shaft-threads and the
hole-threads of any swarf (tiny metal shavings), before
applying thread locker to ensure precise alignment
between the pinion gear and clutch bell. Use special
care to prevent thread locker from entering the bearing!
10T Pinion Gear
1 : 8.9 Ratio
Clutch Bell Assembly
Bearing L-1910ZZ
* NOTE: Use a rocking
side-to-side motion to
slip bearing onto shaft.
* NOTE: Use a rotating
motion to twist the the clutch
bell assembly simultaneously.
M3x6mm Socket Head Bolt (x1)
M3mm Flat Washer (x1)
M3x6mm Scocket Head Bolt
M3mm Flat Washer
Front Tail Belt Pulley
Bearing R-1960ZZ
Tail Drive
Pinion Gear
Bearing R-1960ZZ
* NOTE: It can take several hours
for the thread locker to dry after
application - do not use assembly
until it’s completly set.
* NOTE: Use special
care to prevent thread
locker from entering
the bearings!
Bearing R-1960ZZ
M6x19x6mm (x2)
Bearing L-1910ZZ
M10x19x7mm

1.3
ELEVATOR LINK
7
1.4
FUEL TANK
14.5mm Long Ball Arm (x1)
Elevator Arm Pin (x1)
M2x10mm Socket
Head Bolt (x2)
M2mm Flat Washer (x2)
* NOTE: Mold marks
must face aft - toward
the swashplate ball.
Fore Aft
* VERIFY: swashplate
arm pivots freely on
the elevator arm.
Elevator Arm
Elevator Arm Bushing
AftFore
Swashplate Arm Link
14.5mm Long Ball Arm
Elevator Arm Pin
* NOTE: Use a small
hammer and tap gently
to drive the elevator arm
pin to join the swashplate
arm link to the elevator
arm. Ensure equal
amounts of pin protrude
on both sides of the
swashplate arm link.
Fuel Feed Line: 1/8” Silicone Fuel Tubing
(not included) - Du-Bro Medium (blue)
Silicone - No. 197 recommended.
* PRO TIP: For high nitro
use, replace the included
small diameter silicone fuel
pickup line with 1/8” ID
silicone fuel tubing.
Replace yearly!
Clunk Pickup
Muffler Pressure Line: 1/8” Silicone
Fuel Tubing (not included)
Inspect daily - replace yearly!
Fuel Tank - 14 oz
practical capacity
* NOTE: Ensure the clunk
swings freely by providing a
minimum 1/16” of clearance
from the aft fuel tank wall.
NutFlat Washer
Rubber Tank
Grommet
Feed Nipple
* NOTE: Fuel pickup
line length is critical,
measure carefully!
87mm 1mm
* PRO TIP: add a small dab of silicone RTV at
the four tank mounting points when you
assemble the fuel tank into the main frames.
+
* NOTE: Check fuel
tank for swarf before
assembling it!

8
* NOTE: Notches
must face toward
each other!
Main Frame - Right
Main Frame - Left
Servo Mount Boss
* NOTE: Do not
glue the servo boss
plates into place!
2.1
SERVO-BOSS

9
Elevator Arm Bushing 32mm (x1)
M3x8mm Socket Head Bolt (x2)
M3x38mm Socket Head Bolt (x16)
M3x12mm Socket Head Bolt (x1)
M3mm Nylon Lock Nut (x16)
Bearing L-1910ZZ (x2) - M10x19x7mm
Bearing L-1950ZZ (x1) - M5x19x6mm
Bearing L-1950ZZ (x1)
Bearing L-1910ZZ (x2)
M3mm Nylon Lock Nut
M3x8mm Socket Head Bolt (x2)
* NOTE: Use care
with thread locker!
Tail Drive Pinion Assembly
M3x38mm Socket
Head Bolt (x16)
(Step 1.2)
(Step 1.1)
(Step 1.3)
(Step 1.4)
Elevator Arm
Clutch Bell Assembly
M3x12mm Socket Head Bolt (x1)
Fuel Tank Rubber Grommet (x4)
Elevator Arm Bushing 32mm (x1)
Fuel Tank Assembly
* PRO TIP: add a small dab of
silicone RTV at the four fuel tank
mounting points when you
assemble the fuel tank assembly
into the main frame assembly.
2.2
MAIN FRAME

10
2.3
AVIONICS PLATFORMS
M3x10mm Socket head Bolt (x8)
Cabin Mount Stand-off 20mm (x2)
Cabin Mount Stand-off 10mm (x2)
M3x14 Set Screw (x2)
M3x12 Set Screw (x2)
Cabin Mount Stand-off
20mm (x2)
M3x14 Set
Screw (x2)
Gyroscope
Platform
M3x10mm Socket head Bolt (x8)
* NOTE: Don’t use
thread locker on
plastic parts!
Radio Platform
Cabin Mount Stand-off
10mm (x2)
M3x12 Set Screw (x2)
Use thread locker on
set screw, install it
evenly into standoff
and let it dry before
assembly to frame.

11
M3x15mm Socket
Head Bolt (x4)
M3x6mm Set Screw (x4)
M3mm Nylon Lock Nut (x4)
M3mm Flat Washer (x8)
Antenna Guide Tube
M3mm Nylon
Lock Nut (x4)
M3x15mm Socket Head Bolt (x4)
M3x6mm Set
Screw (x4)
Skid Cap (x4)
Landing Skid (x2)
Landing Gear Strut (x2)
Fore Aft
* NOTE: Minimum length = 1-3/16”
* NOTE: Use a small dab
of silicone RTV as glue to
help retain skid caps.
* PRO TIP: Use nylon zip-ties
instead of socket head bolts
and nylon lock nuts to secure
landing gear struts to the main
frame - this helps prevent
greater damage in case you
slam dunk your helicopter
when practicing 3D.
M3mm Flat Washer (x8)
1-3/16”
3.1
LANDING GEAR

12
M4x4mm Set Screw (x3)
M3mm Nylon Lock Nut (x1)
Mast Stopper
M4x4mm Set
Screw (x3)
Long
Short
Main Mast
Evenly tighten the
M4x4 set screws in
the mast stopper (use
thread locker).
The beveled edge of
the mast stopper
faces the bearing.
Gently draw up the
main mast to remove
the slack.
NOTE
Autorotation Clutch
Nylon Lock
Nut (x1)
M3x22 Socket Head
Shoulder Bolt (x1)
M3x22 Socket Head Shoulder Bolt (x1)
* PRO TIP: The 89T - Main Gear
(has 89-teeth) and when meshed
with the 10T - Pinion Gear results
in a 8.9:1 final drive ratio.
3.2
MAIN GEAR & SHAFT

3.3
ENGINE MOUNT & FAN
M3x15mm Socket
Head Bolts (x4)
M3mm Flat Washer (x4)
M3mm Lock Washer (x4)
M3x8mm Socket
Head Bolts (x4)
* NOTE: Do not use
thread locker on the
crankshaft engine nut.
Crankshaft
Engine Nut
Clutch Hub
Cooling Fan
M3x8mm Socket
Head Bolt (x4)
Not all engines will
include a prop-drive
yet it is required.
46-50 class engine
is not supplied in
#22501 or #22502
Engine Mount
M3x15mm Socket
Head Bolts (x4)
M3mm Lock Washer (x4)
M3mm Flat
Washer (x4)
M2x8mm Phillips Head Screw (x1) Start Shaft
M3x8mm Socket
Head Bolt )x2)
M2mm Hex Nut (x1)
Stainless Steel
Ball Joint (x1)
Stainless Steel Ball Joint (x1)
M2mm Hex Nut (x1)
M2x8mm Phillips Head Screw (x1)
M3x8mm Socket
Head Bolt (x2)
Clutch
Assembly
* PRO TIP: Use a dial indicator
to check for excessive runout.
Beware false readings by
measuring at the shoes. Take
measurements at the hub. Try
both rotating the assembly
180o or just loosening and
tightening bolts as just that
may make a difference.
* PRO TIP: Using a marker, place a dot on the
clutch hub - then use a dial indicator to check
for excessive runout. Time spend here may
pay off in a smoother running helicopter.
Simply loosening and rotating the assembly
as little as a 1/8 turn can make a difference.
* PRO TIP: If a commercial piston-locking tool isn’t
available, a plastic handle from a toothbrush - used to
block the piston - can aid in tightening the engine nut.
Further details at:
www.audacitymodels.com
* PRO TIP:
A 1/4” drive
10mm
deep well
thin wall
socket is
perfect for
engine nut.
13
3.4
CLUTCH & EXTENSION

3.5
ENGINE & START SHAFT
3.6
HEX ADAPTER/MUFFLER
14
M3x30mm Socket Head Bolt (x2)
M4x4mm Set Screw (x1)
Hex Start Adapter
M4x4mm Set Screw (x1)
Muffler (option)
M3x30mm Socket
Head Bolt (x2)
* NOTE: Slide muffler mounting bolts into engine
crankcase before mounting engine to the main frame.
1/8” Silicone Fuel
Tubing (option)
* NOTE: Installation of
a fuel filter is highly
recommended (option)
* VERIFY: Muffler pressure and fuel
feed 1/8” silicone rubber tubing is a
maintenance item. Inspect daily.
* NOTE:
Tighten set screw
against start shaft’s flat.
3-1/2”
4-1/2”
1-1/2”
4”
0 431 2
M3x12mm Socket Head Bolt (x4)
M3mm Cap Bolt Holder (x4)
M3mm Cap Bolt Holder (x4)
M3x12mm Socket
Head Bolt (x4) Start Shaft
Angled - INCORRECT
Too Low - INCORRECT
Too High - INCORRECT
CORRECT
There is a slight amount of adjustment for
the engine mount to fit within the main
frames. This adjustment is for the purpose
of aligning the clutch. The clutch MUST fit
squarely within the clutch bell to ensure
proper engagement of the clutch shoes
against the friction material. Use care
when fitting to align as well as possible.
* PRO TIP: Use a thin strip of typing paper
wrapped once around clutch for alighnment.
VERIFY
* PRO TIP: Lightly
snug engine mount
bolts, align clutch,
then tighten bolts.

15
Complete Assembly
VERIFY
The washout links must
connect to the two
longer-stud balls on the
swashplate inner ring.
* PRO TIP: Lubricate the washout
slider with a few drops of light
machine oil such as 3-in-1 daily.
Washout Assembly
120o Swashplate Assembly
Guide Pin
Slot for guide pin
Hollow Main Shaft
(lighter & stronger
than solid shaft)
Greater Stability - inner holes
of washout mixing arms.
Greater Agility - outer holes
of washout mixing arms.
4.1
SWASHPLATE/WASHOUT
* PRO TIP: For extreme
performance, or 3D flight,
extend both of the short
inner balls to match the
length of the longer balls.

4.2
HEAD & FLYBAR ARM
4.3
FLYBAR INSTALLATION
16
M3x20mm Socket Head
Shoulder Bolt (x1)
M3mm Nylon Lock Nut (x1)
M2x10mm Phillips
Head Screw (x2)
Stainless Steel Ball (x2)
M3x5mm Set Screw (x2)
Rotor Head Assembly
Fly Bar
Stopper
M3mm Nylon
Lock Nut (x1)
M3x20mm Socket Head
Shoulder Bolt (x1)
* PRO TIP: This
shoulder bolt is
also known as a
Jesus bolt.
M3x5mm Set
Screw (x2)
M2x10mm Phillips
Head Screw (x2) Stainless Steel
Ball (x2)
* NOTE: Ensure the rotor
hub pin engages the
washout base groove
before securing the rotor
head onto the main shaft.
M4x6mm Set Screw (x2)
Center the flybar in the flybar control arms.
VERIFY
M4x6mm Set
Screw (x2)
* NOTE: Adjust
so that both A&B
sides are exactly
the same length.

4.4
FLYBAR PADDLES
ROTOR CONTROL RODS
4.5
17
ROTOR CONTROL RODS
M3mm Nylon Locking Nut (x2)
M4x6mm Set Screw (2)
3x70mm weight (x2)
* NOTE: Flybar paddles - short leading
edge section forward - clockwise rotation.
Flybar Paddle
3x70mm weight (x2)
M4x6mm Set Screw (2)
M3mm Nylon
Locking Nut (x2)
Thread each flybar paddle onto
flybar until 5mm of threaded rod
protrudes beyond the end.
VERIFY
* PRO TIP: For greater agility,
don’t install the weight inside
the flybar paddles.
* NOTE: Both flybar paddles plus the
flybar control arm should (all three) be
perfectly parallel to each other.
A - Seesaw Arm to Main Blade Grip
M2.3x13mm Threaded Rod (x2)
SHORT - HD Ball Link Ends (x2)
B - Washout Arm to Flybar Control
M2.3x13mm Threaded Rod (x2)
LONG - HD Ball Link Ends (x2)
C - Swashplate to Seesaw Arm
M2.3x40mm Threaded Rod (x2)
LONG - HD Ball Link Ends (x2)
- Assemble three
pairs of pushrods.
WARNING
The HD Ball Link Ends
are designed to fit one
way only. Snap the
HD link over the ball
with the HD facing
outward - away from
the ball.

5.2
TAIL OUTPUT SHAFT
5.1
TAIL GEAR BOX & BELT
Tail Boom (L=690mm)
Short
Slot
Long
Slot Tail Output Shaft Bearing
L-1350ZZ (x2) 5x13x4mm
Tail Gear Case (L)
Tail Gear Case (R)
Tail Drive Belt
S3M-1596
M2.6x12mm Socket Head Bolt (x2)
M3x8mm Socket Head Bolt (x3)
M2.6mm Nylon Lock Nut (x2)
M2.6x12mm Socket Head Bolt (x2)
M2.6mm Nylon
Lock Nut (x2)
M3x8mm Socket
Head Bolt (x3)
Tail Output Shaft Assembly
* NOTE: Ensure the bearing is
in place, then slip the tail
output shaft assembly through
the tail drive belt and seat it.
* NOTE: Seat the tail gear
case fully onto the tail boom
before snugging the bolts.
Bearing L-1350ZZ
M5x13x4mm (x2)
* PRO TIP: Use care when tightening the bolts into the
tail gear case - as soon as the head contacts the case half,
that’s it. It’s easy to overtighten and strip the threads. A
temporary repair is to use a drop of medium CA in the
hole then re-install the screw.
18

5.4
TAIL ROTOR HUB
5.3
TAIL PITCH LEVER
Stainless Steel Ball (x1)
Tail Lever
Bushing (x1)
Tail Pitch Plate
Tail Pitch Link Pin
Tail Pitch Link
Tail Lever
Bushing (x1) Tail Pitch
Control Lever
Stainless Steel
Ball (x1)
M2x8mm Phillips Head Screw (x1)
VERIFY
* NOTE: Ensure tail pitch control lever
pins fully engage the slot in the tail
slide ring assembly.
M4x4mm Set Screw (x2)
M3mm Nylon Lock Nut (x2)
Bearing, R840ZZ
M4x8x4mm (x4)
M4x4mm Set Screw (x2)
Tail Slide Ring Assembly
Tail Rotor Center Hub
Bearing, R840ZZ (x4)
M3mm Nylon
Lock Nut (x2)
* NOTE: Ensure the set screws
seat fully within the holes at the
end of the tail output shaft.
M2x8mm Phillips Head Screw (x1)
Pins
19

5.6
VERTICAL FIN
5.5
TAIL ROTOR GRIP
M2x8mm Phillips Head Screw (x2)
M2x8mm Phillips
Head Screw (x2)
M2x8mm Socket Head Bolt (x4)
M3x15mm Socket Head Bolt (x2)
M2mm Hex Nut (x4)
M3mm Nylon Lock Nut (x2)
Stainless Steel Ball (x2)
Stainless Steel
Ball (x2)
M2x8mm Socket
Head Bolt (x4)
M2mm Hex
Nut (x4)
M3mm Nylon Lock Nut (x2)
Tail Rotor
Grip - B
Tail Rotor
Grip - A
M3x15mm Socket Head Bolt (x2)
Tail Rotor Blade
M3x10mm Socket Head Bolt (x2)
* NOTE: Use care to not
overtighten the socket
head bolts as they may
crack the vertical fin or
strip out the threads in
the tail gear case.
M3x10mm Socket Head Bolt (x2)
* PRO TIP: Snug the tail rotor blade bolts,
but don’t tighten so much the blades
don’t swing freely under their own weight.
20