Venom Air Corps Night Ranger 3dxl User manual
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0o
+15o
-15o
+10o
-10o
+5o
-5o
No.0
1.5mm
2.0mm
2.5mm
The VNR 3DXL™ is not a toy. It is a precision machine requiring proper assembly
and setup to avoid accidents and it is the responsibility of the owner to operate this
product in a safe manner as it can cause serious personal injury and damage to
property due to carelessness or misuse.
When charging the battery pack, do not overcharge! If batteries get hot during
charging, discontinue charging immediately and disconnect the battery from the
charger. Never leave battery unattended while charging. If you are unsure of how to
charge this battery, please contact Venom Air Corps™ or seek the advice of your
local hobby shop. Never let children charge batteries without adult supervision.
To avoid an out of control helicopter always turn the radio on rst then connect the
battery to the helicopter. When turning off the helicopter, always disconnect the
battery rst, then turn off the radio. If the orders are reversed the helicopter may
become uncontrollable and cause serious damage.
If you are in doubt of your ability, we strongly recommend that you seek assistance
from experienced radio controlled helicopter pilots or join your local helicopter
flying club to gain the required knowledge and skill. As the manufacturer and
distributor, we assume no liability for the use of this product.
Children under the age of fourteen (14) are strictly prohibited from playing with this
electric helicopter.
WARNING!
READ BEFORE FLIGHT
I. INTRODUCTION
Venom Air Corps™ Night Ranger 3DXL™ is a high performance Ready-to-Fly Collective Pitch (CP)
Aerobatic Electric Helicopter for indoor flying and outdoors on calm days. At about 610 grams, the
VNR 3DXL™ will fly for 5-8 minutes on the 11.1v 10c 3s 1500mah LiPO battery, depending on the
type of flight. Although the VNR 3DXL™ is not difcult to operate, it does take more skill and practice
to master than a xed pitch helicopter. We recommend that you read these instructions thoroughly and
carefully rst. If you have any questions, please feel free to call our customer service department or
contact your local hobby shop or local flying club. All are excellent resources for information and
are more than willing to help new hobbyists.
SPECIFICATIONS:
Helicopter # ..................................................... VENF-6230
Helicopter Name ............................................. VNR 3DXL™
Main Rotor Diameter ....................................... 625mm
Fuselage Length ............................................. 595mm
Weight ............................................................. 610g
Battery ............................................................. 11.1v 10c 3s 1500mah LiPO
Radio Controller .............................................. 7 Channel FM
Servo ............................................................... 4 Micro Servos
TOOLS NECESSARY:
- 1.5, 2, 2.5mm Allen Wrenches
- #0 3/32” Phillips Screwdriver
- Needle Nose Pliers
- Ball Pushrod Pliers (optional)
- Micro Pitch Gauge (optional)
II. INSTALLATION
INSTALLING THE BATTERY:
Slide the battery into the battery tray with the battery lead end facing
the front right of the helicopter. Slide the battery in so that the battery
front edge is flush with the bottom battery tray front edge. To secure
the battery tightly with the included Hook & Loop strap, wrap the strap
around the battery and the tray.
INSTALLING THE CANOPY:
Slide the canopy onto the helicopter. Spread the side of the canopy apart
2
GUARANTEE:
We guarantee that the VNR 3DXL™ to be free of manufacturing
faults and material defects. This product has been checked and
adjusted individually before leaving the manufacturer. Please contact
your local hobby shop for replacement parts and technical support or
contact Venom Air Corps™ Customer Service at 800.705.0620 or
[email protected]. To help identify broken or
damaged parts we have included a detailed parts list and assembly
diagram at the end of this instruction manual.
CHARGING THE BATTERY:
ALWAYS REMOVE THE BATTERY BEFORE CHARGING! Plug the
power supply into a wall outlet, then attach the LiPO Balance Charger
(VEN-0653). Both LEDs will illuminate. The Left LED will be GREEN and
the Right LED will be RED. Plug the battery into the correct charging port
on the charger and the Left LED will change to RED and start flashing
rapidly. When the battery is charged, the Left LED will turn GREEN. It
will take approximately 2 hours to fully charge. The charge time will vary
based on starting battery level. If the battery gets warm or hot during
charging, disconnect the battery and set it on a non-flammable surface
and allow it to cool down and look for any swelling or pufng in the pack.
See LiPO handling instructions on page 19 for information.
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Belt
Large Pulley
Small Pulley
Small Pulley
Correct Tension
Tail Boom
Belt
Large Pulley
Small Pulley
Small Pulley
Incorrect Tension
Tail Boom
PRE-FLIGHT:
IT IS IMPORTANT TO PERFORM THIS PRE-FLIGHT SAFETY CHECK
BEFORE EVERY FLIGHT.
1. Assembling the Radio
Install eight (8) AA batteries into
the removable battery tray from
the back of the radio. Facing the
radio, twist the antenna into the
socket on the top of the radio
clockwise until it is tight. A loose
antenna could cause intermittent
control, running the risk of losing
control of the helicopter. (Fig. B)
2. Check for Loose Items
It is important to check the
helicopter for loose screws and
nuts before flight, in case they
have loosened in shipping. For
specic areas to check see (Fig. C).
- Tighten any loose screws. Only apply thread locking compound to
screws that have metal to metal contact, if needed.
- Ensure all components such as the Gyro and Receiver are
secured to the airfame.
- Check the Motor Mount and Servo Mounting screws.
- Check for any Servo Wires which may be touching the Spur Gear.
- Check the Head Assembly down to the Swash Plate.
- Check Tail, Tail Boom Mount/Belt Tension.
3. Check for Cracked or Damaged Parts
Any part that is cracked or damaged on the helicopter can cause
unpredictable flight performance. Specic areas to check (Fig. C):
- Landing Skids
- Tail Boom Mount
- Blade Grips
so that the bottom front rubber grommets can slip over the bottom front
canopy mounts. Then slip the top rear set of rubber grommets onto the
top rear canopy mounts.
Check the Center of Gravity (CG)
It is recommended that once the battery is fully charged and installed,
that the CG is checked. To adjust the CG, position the flybar at a 90o
angle to the tail boom. Pick up the VNR 3DXL™ by the flybar and
position the battery so that the tail boom is parallel to the floor (Fig. A)
Fig. B
3
Fig. A Note: Lift by Flybar
Tail Heavy
Nose Heavy
Level
The boom should be level with the ground when the VNR 3DXL™ is lifted by the flybar. If
it is not, move the battery forward or backwards to balance. Always check the CG with the
battery and canopy installed.
III. MAIDEN FLIGHT CHECKLIST
4. Adjusting the Tail Rotor Belt Tension
Inspect the belt tension to make sure it is properly set. If it is too loose,
the belt can slip causing unpredictable tail control and damage to the
belt. If the belt is too tight, it will rob the helicopter of power and can
also have adverse effects on tail control. Check the belt tension by
pressing on the belt right between where it enters the boom and the
main mast. You should be able to press the belt to roughly half the
distance to the other side of the belt. See (Fig. D)
If the tension is not correct, adjust it by sliding the boom in or out of
its housing. First, loosen the two screws that hold the tail boom in
place. These screws are located on the top right side of the front edge
of the boom. Next, loosen the horizontal n screws so the boom can
be pulled out straight. Once they are loose, pull the boom out if the
tension is too loose . Push the boom in if there the tension is too tight
(Fig. E).
Fig. C
Landing Skids
Tail Boom Mount/Guide Pulley Set
Head Assembly
& Swash Plate
Fig. D
Fig. E
Adjust
Loosen
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BASIC RADIO INTRODUCTION:
IT IS IMPORTANT TO HAVE A BASIC UNDERSTANDING OF THE
LAYOUT OF THE RADIO BEFORE FLYING IN NORMAL FLIGHT
MODE. PLEASE NOTE: RADIO MODE I IS FOR PILOTS IN EUROPE
& AUSTRALIA. RADIO MODE II IS FOR PILOTS IN NORTH AMERICA.
BOTH RADIO MODES WILL BE EXPLAINED ON PAGE 7.
The VNR 3DXL™ radio offers advanced functionality and control. When
you turn on the radio, it will go through an initialization process
that takes 3-4 seconds. During this initialization the display lights
will ash multiple colors. It will then go to a solid purple on the logo
and red, yellow, and green on the battery indicator. It is important
to note that if the Flight Mode switch is ipped to 3D Flight Mode,
the radio will initialize but the logo will not light up and the power
meter will ash to let you know that the 3D Flight Mode needs to be
set on Normal Flight Mode. Once the switch is set, it is not required
to cycle the power in order to continue to y. In MODE II - North
America, the left control stick controls Throttle and the Tail Rotor (Fig. F).
The right control stick controls the Elevator and Aileron. There are four
trims that control the Throttle/Pitch, Tail Rotor, Elevator Cyclic and Aileron
Cyclic. Along the top of the radio are two switches and two dials. The
Gear switch is an auxiliary switch and is only functional if an additional
servo is plugged into channel port #5 on the receiver. This is perfect if
you are using a scale body that happens to have retractable landing gear.
The Flight Mode switch is used to switch between Normal Flight Mode
(indicated by “N”) and 3D Flight Mode (indicated by “1”). The dials labeled
V1 and V2 are used for several different adjustments that can be made to
the helicopter’s programming including the Pitch and Throttle Curves
Fig. F
NOTE: The radio conguration is for MODE II. For MODE
I ight control instruction, please refer to page 7.
4
RADIO DIP SWITCHES:
Below is a list of DIP switches with their respective descriptions and
preferred settings as from the factory (Fig. G):
DIP # Description Setting
1Elevator Servo Reversing (Front Swashplate Servo) OFF
2 Aileron Servo Reversing (Back Right Swashplate Servo) ON
3Throttle Function Reversing OFF
4Tail Rotor Servo Reversing (Servo In Front of the Motor) OFF
5 Retract Servo Reversing (Operational, Not Used) OFF
6 Pitch Servo Reversing (Back Left Swashplate Servo) OFF
7Throttle To Tail Rotor Mixing OFF
8 Mechanical/CCPM Mixing Option ON
9 CCPM Elevator Reversing Function: Reverses the
whole elevator function, not just the single servo.
ON
10 Pitch Lock Function: Turning this on allows changing the
pitch range and pitch curve in normal flight mode.
OFF
11 Throttle Curve/Servo Exponential: Allows the pilot to
change head speed by changing the throttle curve, as
well as dialing in exponential to the aileron and elevator
cyclic.
OFF
12 Remote Gyro Gain/Throttle to Tail Rotor Mix Adjustment OFF
Fig. G
Factory Settings
When you are ready to fly, verify that the DIP switches are in the factory
set positions shown here. Flying the VNR 3DXL™ with any other
conguration will result in unexpected flying and possible personal injury.
III. MAIDEN FLIGHT CHECKLIST (CONT)
(explained in the Flight Envelope Section), Servo Exponential, and even
Remote Adjustment of the Gyro. The back of the radio has a series of
DIP switches that are used for servo reversing, several pre-programmed
settings, and in the case of DIP switches #10, #11, and #12, they are
used to operate the programmable settings.
Full
Throttle
Throttle
Off
Left Tail
Rotor
Right Tail
Rotor
Elevator
Up
Elevator
Down
Left
Aileron
Right
Aileron
(DIP switches are located
on the underside of the radio.)
* Gear Switch is not operational will only be functional if an
additional servo is plugged into Channel #5 on the receiver.
FLIGHT MODE
N1
0%
50%
100%
Normal Flight Mode
3D Flight Mode
Pitch
Adjustment
Throttle
Adjustment
Throttle
Gear Switch/
Auxiliary *
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Belt
Large Pulley
Small Pulleys
Correct Belt Orientation
Tail Boom
Belt Guide
Belt Guide
IV. NORMAL FLIGHT MODE HEAD ADJUSTMENTS
5
TURNING ON THE HELICOPTER:
1. Turn on the radio rst; make sure the throttle stick is in the throttle off
position and the throttle trim in the center position.
2. Make certain the Flight Mode switch is in the Normal Flight Mode
position.
3. Place the helicopter on a flat surface. Plug the battery into the ESC.
When you rst plug in the battery, the LED on the gyro will flash red
rapidly, and then after 5-8 seconds, it will go to a solid red. During
this time it is important that the helicopter is not moved as the gyro is
initializing.
4. Make sure all of the trims are centered.
5. Make sure that the swashplate is level to the ground. If not, see the
Normal Flight Mode Head Adjustment section below. You will use the
trim sliders to ne tune the helicopter once you have completed a test
flight.
It is important to make sure that the blade pitch is set right in Normal
Flight Mode to achieve high performance in 3D Flight Mode.
1. When making the head adjustments, make sure to disconnect the Main
Motor as a safety precaution.
2. The throttle stick needs to be in the throttle off position.
3. Locate all three pushrods that run from the swashplate to the servo
arms and disconnect them from the swashplate.
4. Turn on the radio and center all the trims. Connect the battery on the
helicopter.
5. Check all three servo arms to see if they are roughly 90oto the servo
case by looking directly at each screw head on (Fig. I). If not, loosen
the retaining screw on the servo arm and remove the arm from the
servo case to reveal the splines on the output shaft. These splines are
the little notches that engage into the servo arm. Rotate the servo arm
one spline at a time. If you cannot get the arm to be exactly 90o, set
it to as close to 90o. (NOTE: If you have to adjust the servo arm on
the back servo, you may need to completely remove the front servo to
correctly re-tighten the retaining screw.) Repeat these steps and check
the other two servos. Then re-tighten the retaining screw.
6. With the three pushrods still disconnected from the swashplate,
move the whole swashplate so that it is level to the ground and that
the washout arms are parallel to each other and to the ground when
viewing it from both the sides and front (see Fig. J). Next adjust the
pushrods so that they match up to the pivot balls on the leveled
swashplate. Be careful to not move the servo arms when adjusting the
pushrods. The pushrod can be adjusted by screwing the plastic
CHECK CONTROL FUNCTIONS:
MODE I - EUROPE & AUSTRALIA MODE II - NORTH AMERICA
Move the RIGHT control sitck to the right and
the swashplate will tilt to the right. Move it to
the left and the swashplate will tilt to the left
(observe from behind the helicopter). (Roll
Control)
Move the RIGHT control sitck to the right and
the swashplate will tilt to the right. Move it to
the left and the swashplate will tilt to the left
(observe from behind the helicopter). (Roll
Control)
Pull the LEFT control stick back towards
you and the swashplate will tilt back. Push it
forward and the swashplate will tilt forward.
(Elevator Control)
Pull the RIGHT control stick back towards
you and the swashplate will tilt back. Push it
forward and the swashplate will tilt forward.
(Elevator Control)
Move the LEFT stick to the right and the
Trailing Edge of the tail rotor blades will go to
the right. Move it to the left and the Trailing
Edge of the tail rotor blades will go to the left.
Move the LEFT stick to the right and the
Trailing Edge of the tail rotor blades will go to
the right. Move it to the left and the Trailing
Edge of the tail rotor blades will go to the left.
Spin the head clockwise (viewing from
overhead) and the Leading Edge of the tail
blades should rotate up towards the blades
(counter-clockwise when viewed from the
right side of the helicopter). If the tail blades
are not rotating in this direction, the belt has
been twisted the wrong way (Fig. H).
Spin the head clockwise (viewing from
overhead) and the Leading Edge of the tail
blades should rotate up towards the blades
(counter-clockwise when viewed from the
right side of the helicopter). If the tail blades
are not rotating in this direction, the belt has
been twisted the wrong way (Fig. H).
Fig. H
Fig. I Fig. J
90º
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pushrod in or out on the metal rod. Once adjusted, connect the
pushrods to the swashplate. Make sure to connect to the pivot ball that
is directly above the pushrod. In most cases, one of the three will be
much longer or shorter than the other two, so don’t be alarmed. Check
to see if the swashplate and washout arms are still level. If not, repeat
this step.
7. Make sure that the blade pitch on each blade is at 0o pitch. If they
are not, please read below. The goal is to have the proper amount of
positive pitch in Normal Flight Mode, while maintaining a symmetrical
amount of positive and negative pitch in 3D Flight Mode.
BLADE TRACKING & BLADE PITCH
Blade tracking is a crucial component to having good flight
characteristics. If the blades do not track properly (if they do not follow
the same path when they are spinning) they can create vibrations and
instability (Fig. K). The tracking has been set at the factory but may need
some minor adjustments to optimize it.
Check the Blade Tracking:
1. Apply blade tip decals. Choose two different colors.
2. Disconnect the motor lead.
3. Set the cyclic control trims to center on the radio.
4. Turn on the radio and helicopter.
5. Examine the swashplate. The swashplate must be 90o square to the
Main Shaft when observed from the front and from the side (Fig. L).
6. Viewing the VNR 3DXL™ from the side, rotate the flybar so that it is
parallel to the tail boom and level to the ground. The flybar must also
be 90o square to the Main Shaft when checking the pitch. (Fig. L).
Sight down the length of the blade closest to you.
7. The main rotor blades must be parallel to the flybar and swashplate
(Fig. L).
8. Note the angle (pitch) of the blade. The blade pitch angle must be 0o
as a starting point (Fig. M).
9. To adjust the blade pitch angle (see Fig. N). NOTE: Adjust the left
pushrod in view which corresponds to the blade facing you.
10. Repeat steps 6 - 9 for the other blade.
Once these steps are completed, you are ready to flight check the
tracking while hovering (hover at waist level). After ne tuning the radio
trims, check the blade tracking and adjust by using the previous steps.
TIP: For more accuracy in tracking the blades, it is recommended to
use a Pitch Gauge.
Fig. K
Incorrect Tracking
Correct Tracking
IV. NORMAL FLIGHT MODE HEAD ADJUSTMENTS (CONT)
Main Blade
Main Shaft
Flybar
Parallel
0º
90º
-10º
0º
+10º
Blade Rotation
Positive
Pitch
Negative
Pitch
Fig. M
Fig. L
Fig. N
Adjusting the Long
Pushrod increases
or decreases pitch.
Turn to the right to
decrease. Turn to
the left to increase.
6
Parallel
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Throttle
Up
Throttle
Down
Pitch
Adjustment
Throttle
Adjustment
3D
Mode
Switch
23
14
Throttle
Up
Throttle
Down
Pitch
Adjustment
Throttle
Adjustment
3D
Mode
Switch
23
14
7
RADIO TRIM ADJUSTMENTS
(FINE TUNING):
MODE I - EUROPE & AUSTRALIA MODE II - NORTH AMERICA
ATTENTION: BEFORE CONNECTING THE BATTERY TO THE ESC, YOU MUST CONFIRM
THE FOLLOWING SETTINGS. MAKE SURE THE VNR 3DXL™ IS TURNED OFF DURING
THIS PROCESS!
1. The crystals on the radio and the receiver must match each other.
2. Antenna is screwed in and extended, batteries are fully charged and radio has been turned
on.
3. The throttle stick must be located in the throttle off position, otherwise serious damage to the
VNR 3DXL™ and personal injury may occur.
4. Make sure the Flight Mode switch is in the Normal Flight Mode.
If all of the above settings are confirmed, connect the battery to the ESC.
After the battery is connected, wait for the gyro to initialize (as described on page 5) before
flying. If the LED does not blink after the battery is connected, please check that you have
switched on the radio and that the battery is fully charged.
NOTE: If the throttle stick is not in the throttle off position when the battery is connected, the
gyro will still initialize but the throttle stick will not be active until it is returned to the throttle off
position. If the radio is working properly and the helicopter suddenly seems to shut off, that
condition is the result of a loss of signal or interference. The radio system has a built in fail safe
to prevent a run away helicopter. In the event of signal loss, the receiver is designed to stop its
activity and neutralize the helicopter to minimize damage to it and any property it may come in
contact with.
If the main rotor blades start rotating, and
the right control stick has not been pushed
forward, slowly adjust the radio trim 3until
they stop rotating.
If the main rotor blades start rotating, and
the left control stick has not been pushed
forward, slowly adjust the radio trim 2until
they stop rotating.
Make sure the swashplate is horizontal to the
ground. If the swashplate is not horizontal
from front to back, adjust the radio trim 2
until it is level to the ground (Fig. O). If the
swashplate is not horizontal from side to side,
adjust the radio trim 4until it is level to the
ground (Fig. O). Test the flight controls to
make sure they are operating properly and
the swashplate moves in the direction you
want to fly.
Make sure the swashplate is horizontal to the
ground. If the swashplate is not horizontal
from front to back, adjust the radio trim 3
until it is level to the ground (Fig. P). If the
swashplate is not horizontal from side to side,
adjust the radio trim 4until it is level to the
ground (Fig. P). Test the flight controls to
make sure they are operating properly and
the swashplate moves in the direction you
want to fly.
Push the right control stick slightly forward
to start the blade rotation. Keep your fingers,
eyes and other objects clear of the rotating
parts. When the main rotor blades start
rotating, the tail blades should start rotating
simultaneously.
Push the left control stick slightly forward to
start the blade rotation. Keep your fingers,
eyes and other objects clear of the rotating
parts. When the main rotor blades start
rotating, the tail blades should start rotating
simultaneously.
Slowly push the right control stick forward
to increase rotor speed. The VNR 3DXL™
may not take off vertically; it may go forward
or backwards, left or right. Continue to push
the right control stick forward and bring the
helicopter to a hovering height of waist high.
While hovering, use trim sliders 2 & 4to
fine tune the VNR 3DXL™ while hovering.
You may also find the helicopter’s nose
will swing to the left or right side when you
increase throttle. In this case, you need to
adjust the radio trim 1.
Slowly push the left control stick forward to
increase rotor speed. The VNR 3DXL™ may
not take off vertically; it may go forward or
backwards, left or right. Continue to push
the left control stick forward and bring the
helicopter to a hovering height of waist high.
While hovering use trim sliders 3 & 4to fine
tune the VNR 3DXL™ while hovering. You
may also find the helicopter’s nose will swing
to the left or right side when you increase
throttle. In this case, you need to adjust the
radio trim 1.
V. TUNING THE VNR 3DXL™
LESS RESPONSIVE:
- Reducing the throw of the Aileron and Elevator Cyclic will help make
the helicopter less sensitive. To do this move the pivot balls on the
servo arm to the inner most holes.
- With the head speed function selected (DIP switch #11) you can turn
down the head speed, which allows for a longer flight and makes
the helicopter less sensitive to control inputs. Do note that in windy
conditions, it is better to run a little bit higher head speed.
MORE RESPONSIVE:
- Increase the head speed, this will give you a faster response time,
but less flight time. Refer to the Pitch Range & Curve Adjustment
section on changing the head speed. Changing the head speed is
not only more effective than adding more cyclic throw, but has a
more positive response. Increasing the cyclic travel only binds the
head mechanics causing a loss of power and control.
NOTE: MODE I - EUROPE & AUSTRALIA
NOTE: MODE II - NORTH AMERICA
Fig. O
Fig. P
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Gyro Setting Guide
(Tail View)
Full Power Climb Out
Ok Less GainMore Gain
8
VI. THE GYRO & ITS FUNCTIONS
The gyro on the VNR 3DXL™ comes set from the factory. Geographical
region, altitude and temperature can have an effect on the settings and
gyro function so it may be necessary to make minor adjustments. The
gyro has several different features and functions you should be aware of.
The gyro can operate in both Rate Mode and Heading Lock Mode. The
Heading Lock Mode is turned on from the factory. It is turned on and off
by the small switch located on the back side of the gyro marked AVCS
(Angular Velocity Control System). The gyro operates in Rate Mode
when Heading Lock Mode is OFF.
Rate Mode (AVCS OFF)
In this mode, the gyro will counter-act a directional force with an equal
opposite force to maintain stability. In this mode, the gyro is simply
keeping the tail steady. You will control the directional movement of the
tail.
Heading Lock Mode (AVCS ON)
In this mode, the gyro will not only keep the tail steady and stop rotation,
it will also return the tail to the original position in flight.
ADJUSTING THE GYRO:
Sensitvity Pot
The Sensitivity Pot adjusts the reaction speed of the gyro to a change in
directional force. To determine the proper adjustments see (Fig. S)
HEADING LOCK DIRECTION:
The last function of the gyro is the Direction switch right next to the
AVCS switch marked REV (Reverse) and NOR (Normal). This is simply
to reverse which way the gyro compensates when in Heading Lock
Mode. If it is not set properly, the tail will immediately start spinning the
moment you take off. The trailing edge of the blades should move in the
same direction you moved the tail. This only reverses which way the gyro
compensates; this does not reverse the stick movements you make on
the radio (Fig. T). To reverse which way the servo moves for your stick
movements, simply flip the #4 DIP switch on the back of the radio to the
ON position.
V. TUNING THE VNR 3DXL™ (CONT)
- Move the flybar paddles from the front hole to the rear hole (Fig.
Q). This makes for a more responsive cyclic control as you have
changed the center of gravity on the paddle.
Slowing down the response of the VNR 3DXL™
The VNR 3DXL™ is set to perform with a high response rate for
advanced pilots. This is optimal for performing true 3D aerobatic flying.
However, to aid intermediate pilots in learning how to control the
helicopter, it is recommended to slow the response rate of the helicopter.
A slower response time will require more altitude and space if 3D Flight
Mode is attempted. To change the response follow these steps:
1. Locate the swashplate pushrods connected to the servo horns
(Fig. R).
2. Remove the screw from the servo arm keeping it in the pivot ball.
3. Slide the pivot ball over one hole towards the screw (# 1 position) of
the servo and tighten the screw.
4. Repeat steps on all other servo arms.
5. Check your pitch and tracking if you have changed the pitch. You may
have to lengthen all 3 pushrods about half a turn.
6. Test hover and see if you like it.
Shown in the center # 2 position
#2
#1
#3
NOTE: It is not recommended
to y the VNR 3DXL™ with the
swashplate pushrods set at the #3
position on the servo horns.
Fig. Q
Fig. R
#2 #1
Fig. S
Fig. T
Tail Movement
Trailing Edge
Path of
Tail Movement
Path of
Tail Movement
Path of
Tail Movement
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9
VIII. PITCH RANGE & PITCH CURVE ADJUSTMENT
To adjust the pitch range and the pitch curve for Normal Flight Mode,
turn the radio over, locate the series of DIP switches and nd #10. Switch
it ON. The radio display will change from the purple logo to the blue logo.
Make sure that #11 and #12 switches are OFF.
PITCH RANGE:
1. Unplug the motor.
2. Turn on the radio and then plug in the battery on the helicopter.
3. Switch into 3D Flight Mode and check the overall pitch range. The
following will help you determine what type of performance you will
use for flying.
- If you want an aggressive flying helicopter (a higher head speed),
turn the V2 dial counter-clockwise.
- For a docile flying helicopter (a lower head speed), turn the V2
dial clockwise for more pitch.
PITCH CURVE ADJUSTMENT:
To adjust the pitch curve for the Normal Flight Mode, the V1 dial will be
used. Make sure the radio is switched to Normal Flight Mode. Make sure
DIP switch #10 is ON. The pitch curve for 3D Flight Mode is factory set
and is not adjustable. The Normal Flight Mode pitch curve runs from 0o
of pitch to full pitch. The factory set 3D pitch curve runs from full negative
Stick Position
3D Flight Mode
Pitch Range
0%
+10%
+7%
+5%
-7%
-5%
Half FullNone Half Full
-10%
P
i
t
c
h
Low RPM
High RPM
Throttle vs. Pitch Curve
VII. THE FLIGHT ENVELOPE
The term “Flight Envelope” refers to the overall performance of an
aircraft. The VNR 3DXL™ can be tuned to provide the pilot a wide range
of performance to suit his/her ability. This is possible by way of the radio
having several different adjustments that simply change the pitch and
throttle curves. Pitch and throttle curves are pre-programmed values that
correspond to stick movements versus the amount of pitch or throttle at
given settings.
EXAMPLE: The throttle stick at a neutral position (50%), that would
mean that the throttle would be at 50% capacity. Or if the throttle stick
is at 75%, then the throttle is set at 75% capacity. The same principle is
applied to pitch. A neutral pitch should be at 0opitch so that full positive
or full negative have symmetric range.
Helicopters can operate at different rotor head speeds, which will give
different performance and response rate. The VNR 3DXL™ is factory
set with pitch and throttle settings that will give good sportly performance
for the average pilot. Using the adjustments in the radio, the head speed
and pitch range can be adjusted to suit flying style or ability. Depending
on what speed you will be running, the pitch should be adjusted to
match. A slower head speed will make the helicopter more docile. When
running a low head speed, it is necessary to run more pitch range. The
climb out speed will not be as fast as a higher head speed. A higher head
speed makes the helicopter more responsive. When running a higher
head speed, the overall pitch range should be adjusted so it is slightly
less, otherwise the higher load due to more pitch at a much higher RPM
will cause the motor to overheat. Advanced pilots flying aerobatics will
want to run a higher head speed and lower pitch range for the fastest
response rate during stunts. Understanding these critical adjustments is
the key to help push the edge of the envelope.
Stick Position
Normal Flight Mode
Throttle Curve
P
o
w
e
r
0%
50%
100%
Half FullHalf FullNone
Stick Position
3D Flight Mode
Pitch Curve
P
i
t
c
h
-10º
0º
+10º
Half FullHalf FullNone
Stick Position
3D Flight Mode
Throttle Curve
P
o
w
e
r
0%
50%
100%
Half FullHalf FullNone
Stick Position
Normal Flight Mode
Pitch Curve
P
i
t
c
h
-10º
0º
+10º
Half FullHalf FullNone
DIP Switches
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10
To adjust the Throttle Curve and Servo Exponetial turn DIP switch #11
ON, making sure that #10 and #12 are off. Remember to match your
head speed to how much pitch range you have set; low head speed with
more pitch, high head speed with less pitch.
NORMAL FLIGHT MODE THROTTLE
CURVE ADJUSTMENT:
Make sure that the Flight Mode switch is set to the Normal Flight Mode
position. You will be using the V1 dial to adjust the throttle curve. In the 0
position, the throttle will be at 50% power at half stick. Turning the V1 dial
to -100 will shift the throttle down to only 40% at half stick, while turning
the V1 dial to +100 will shift the throttle curve to 80% at half stick.
3D FLIGHT MODE THROTTLE CURVE
ADJUSTMENT:
Make sure that the Flight Mode switch is in the down position to select 3D
Flight Mode. With the V1 dial in the 0 position this puts the throttle setting
at 60% power at half stick. Turning the V1 dial counter-clockwise to -100
will shift the throttle curve down to 40% power at half stick. Turning the
V1 dial clockwise to +100 will shift the throttle curve to 80% power at
half stick. Running a higher head speed is good for flying aerobatics, it is
more responsive, though you will get shorter flights. Lower head speed is
great for just general flying and getting long flights.
IX. THROTTLE CURVE & SERVO EXPONENTIAL
SERVO EXPONENTIAL:
Servo Exponential adjusts how linear the movement is as you move the
elevator/aileron stick. This is done to desensitize the area around the
neutral position making for smoother flying. It is possible to dial in both
positive and negative exponential. Positive exponential makes the servo
movement less responsive to stick movements around neutral. Negative
exponential makes the servo movement more responsive to stick
movements around neutral.
- With the V2 dial in the 0 position, servo movement is perfectly linear.
This means that if you move the stick half its movement, then the
servo will go half its travel. The VNR 3DXL™ comes factory set with
no exponential.
- Turning the V2 dial clockwise to the +100 position, will give you
positive exponential meaning most of the servo travel will not actually
occur until you go towards the limits of the stick movement.
- Turning the V2 dial counter-clockwise to the -100 position will give
full negative exponential. This setting will magnify small stick inputs
around the neutral stick position. It is not recommended using
negative exponential unless you are a very experienced pilot.
To save the adjustments, turn the #11 DIP switch back to OFF.
Stick Position
Throttle Curve
50%
100%
75%
25%
Half FullNone Half Full
0%
S
p
e
e
d
Normal Flight Mode
80%
High Head Speed
40%
Low Head Speed
Stick Position
Throttle Curve
50%
100%
75%
25%
Half FullNone Half Full
0%
S
p
e
e
d
3D Flight Mode
80%
High Head Speed
60%
High Head Speed
40%
Low Head Speed
Stick Position
Pitch Curve
00
Full (+) Pitch
+7%
+5%
Half FullNone Half Full
Full (-) Pitch
P
i
t
c
h
V1 Dial at -100
Stick Position
Pitch Curve
00
Full (+) Pitch
Half FullNone Half Full
Full (-) Pitch
P
i
t
c
h
V1 Dial at +100
Stick Position
Pitch Curve
00
Full (+) Pitch
+7%
+5%
Half FullNone Half Full
Full (-) Pitch
P
i
t
c
h
V1 Dial at 0
at down position to 0o pitch at half stick, and full positive pitch at the
throttle up position.
With the V1 dial at the 0 position (12 o’clock) the pitch curve is perfectly
linear. This means that pitch starts to be introduced as soon as you start
to throttle up. With the dial rotated all the way counter-clockwise the pitch
curve is shifted causing most of the pitch to be introduced after the 50%
point of the throttle stick. This is for pilots that want to do much more
aggressive flying. With the dial rotated all the way clockwise, the pitch
VIII. PITCH RANGE & PITCH CURVE ADJUSTMENT (CONT)
curve is shifted causing most of the pitch to be introduced before the
50% point on the throttle stick. The helicopter will lift off the ground very
smoothly as the pitch gets introduced at a much lower head speed setting
while the head is still spooling up.
We recommend as a starting point that you test fly the helicopter with
the factory settings and then adjust to suit flying style or ability. Once you
have adjusted the helicopter, put the #10 switch in the OFF position to
save these settings.
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The principle of flying:
The VNR 3DXL™ is a 3D Aerobatic CP Helicopter that utilizes direct
CCPM to control cyclic and pitch inputs. The cyclic control system
consists of servos, swashplate, stabilizer and main rotor blades. Their
pitch angle is varied collectively by the servos via the swashplate.
This action tilts the rotational plane of the flybar paddles, and thereby
the main rotor and the swashplate. The CCPM system on the VNR
3DXL™ uses three channels (servos) to transfer control inputs to the
swashplate. To make sure the control input forces are distributed evenly
to the swashplate, the three servo control points are evenly spaced 120º
apart. Unlike fixed pitch helicopters that climb and descend by varying
the speed of the rotor blades (more or less throttle), a collective pitch
helicopter uses a constant rotor speed and varies the pitch (angle) of the
blades to climb and descend. In 3D mode (explained later in this manual),
the VNR 3DXL™ can change blade pitch positively and negatively to
allow it to fly inverted and perform other aerobatic maneuvers. Like
most conventional helicopters, the VNR 3DXL™ always rotates around
its vertical axis and the tail rotor counteracts this unwanted rotation by
producing thrust in the lateral directions. The tail rotor’s thrust can be
varied purposely in order to change the VNR 3DXL™’s heading. The
basic functions required to control the VNR 3DXL™ are: (1) climbing and
descending which is controlled by altering the pitch of the blades; (2)
rotation around the vertical axis is controlled through the thrust of the tail
rotor by varying its rotational speed. However, you must also be able to
steer the VNR 3DXL™ forwards and backwards and to both sides. This
task is carried out by the cyclic control system. If the swashplate inclines
forward, the plane of the flybar paddles also inclines forward. The result
is that the thrust of the rotor is directed slightly towards the rear instead
of vertically, and the VNR 3DXL™ responds by moving in the forward
direction. There are four control functions of the control system, and all of
them are needed to properly fly the VNR 3DXL™.
Flying Environments:
The VNR 3DXL™ will fly in a spacious room without any obstacles or
outdoors with calm winds. Drafts caused by open windows or doors
should be avoided. We recommend learning in a room with a flat, smooth
floor on which the VNR 3DXL™ can slide. Soft carpet is not a good
choice for flying because it could hook the skid of the VNR 3DXL™ and
cause damage.
ATTENTION: Errors and carelessness in assembling and flying
the VNR 3DXL™ can result in serious personal injury and damage
to property. Never touch the spinning rotor blades or any other
exposed moving parts.
XI. FLIGHT MANEUVERS
For pilots who want to use an aftermarket gyro that has remote gain,
follow these instructions to optimize the VNR 3DXL™. The advantage
of remote gain is the convenience of adjusting the gyro straight from
the transmitter. Most aftermarket gyros with remote gain should be
compatible. To use an optional gyro, plug the primary lead which has
3 wires into channel 4. Plug the gain adjustment lead into the receiver
channel marked Aux 2. Turn OFF DIP switches #10 and #11. Center the
V1 and V2 dials to 0 and turn ON DIP switch #12. The gyro sensitivity
function only works if you are using a gyro with a remote gain function.
REVO MIXING:
Also known as throttle to tail rotor mixing; this will mix in small amounts of
tail rotor with different throttle settings due to varying loads on the head at
X. USING OPTIONAL GYRO (SENSITIVITY & REVO-MIXING)
different pitch settings. With the V1 dial set to 0, the tail rotor input value
is at 40%. Turning it clockwise to the +100 value changes the tail rotor
input value to 80%, while turning the V1 dial down to -100 will put the
tail rotor input value at 0%. if using a heading hold gyro, turn the dial to
-100 to turn off revo mixing. The VNR 3DXL™ is factory set without revo
mixing.
GYRO SENSITIVITY:
With the dial in the 0 position, this puts the gyro gain at 0 sensitivity.
Turning the V2 dial clockwise to the +100 position gives 100% gain in
the Heading Lock Mode, and turning the dial about 65-70% gain on the
Heading Lock side of the dial. Turn the #12 DIP switch back to the OFF
position.
Stick Position
Neutral Servo Exponential
0
+100
Half FullNone Half Full
-100
V2 Dial at 0
S
e
r
v
o
T
r
a
v
e
l
Stick Position
Postive Servo Exponential
0
+100
Half FullNone Half Full
-100
V2 Dial at +100
S
e
r
v
o
T
r
a
v
e
l
Stick Position
Negative Servo Exponential
0
+100
Half FullNone Half Full
-100
V2 Dial at -100
S
e
r
v
o
T
r
a
v
e
l
11
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1.
2.
4.
3.
1.
2.
4.
3.
1.
2.
4.
3.
i. BOX PATTERN
Pilot
iii. BOX PATTERN
Pilot
ii. BOX PATTERN
Pilot
12
Operation Procedures:
1. Make sure that your VNR 3DXL™ and radio have been assembled
properly and adjusted completely. Place the VNR 3DXL™ in the middle
of the room. Switch the radio on, then connect the fully charged
battery and let the gyro initiate. Once the gyro initiates, check once
more that the servos are operating correctly before proceeding. Always
stand at least 10 ft from the VNR 3DXL™ and behind the tail before
flying.
2. Now you are ready to start learning to fly. The control diagrams on the
next two pages will help you trim and fly the helicopter.
3. Initially you do not need to worry about how to operate your VNR
3DXL™ skillfully. Through practice, you will become more confident
operating the controls and adjusting the throttle. When your fingers
respond to the movements of the VNR 3DXL™ spontaneously, you
are ready for more advanced flying. Please note that the directions
described on the next page are if you are facing the tail of the VNR
3DXL™. If you are facing the nose left and right will be reversed as
your right is now the VNR 3DXL™’s left.
4. Push the throttle up gradually until the VNR 3DXL™ starts to become
light. The VNR 3DXL™ may initially swing to the left when you
increase throttle. This is because of the thrust of the tail rotor and
the rotation of the main rotor (this is an unavoidable deviation during
take off). Add throttle gradually until the VNR 3DXL™ becomes light,
and then carefully move the throttle stick further until it is ready to lift
off. Observing the VNR 3DXL™’s response, correct any movement
using the corresponding trim settings if necessary. Do not lift off the
ground until you are condent that you have set the trims correctly.
Don’t y too high, keep its height below one meter (3 ft.) off the
oor. If there is any instability or shaking or if the helicopter is out of
control, please land at once. The only thing that helps at this stage is to
practice and then practice some more.
5. Try to control the VNR 3DXL™ using the smallest possible
corrective commands. The sooner you notice a movement and
respond to it, the smaller the corrective measures are required, and
the smaller the flying deviation. Be patient as it does take time to learn
all the required skills to control the VNR 3DXL™. All successful pilots
have mastered the skill of flying through lots of practice.
6. Once your flying time increases and you are capable of controlling
your VNR 3DXL™ in the air, you can slowly increase its height off the
ground. The VNR 3DXL™ will become more stable as it is flown a little
higher, this is because it leaves its own down thrust turbulence. If you
fly the VNR 3DXL™ in a small room you may nd that after a short time
it flies unevenly and unpredictably. This is because the VNR 3DXL™
quickly moves the air in the room and creates a turbulent environment,
if this occurs land and take a break for a minute, the air will calm down
quickly. When you are able to control the VNR 3DXL™ smoothly at
2 meters (6ft.) high and can vary the altitude, you are now ready for
advanced flying!
7. You might like to try flying the VNR 3DXL™ outdoors or set up a flying
course to test your skill (set up your flying course with soft material
such as cushions so you don’t damage the helicopter if you lose
control). You can also practice with the nose of the helicopter
facing you, just remember that your left and right will now be
reversed! Try these three flying box patterns to practice your advanced
flying skills:
Box Pattern Practice
i. With the tail towards you, fly the VNR 3DXL™ in a
box pattern. Slide the helicopter sideways, forwards and backwards
instead of turning the helicopter.
ii. Repeat the box pattern facing the side of the helicopter.
iii. Repeat the box pattern with the front of the helicopter facing you.
iv. Once you master the box patterns, try flying a figure 8 pattern.
XI. FLIGHT MANEUVERS (CONT)
LIFT THE HELICOPTER
LOWER THE HELICOPTER
Mode II
Mode I
(Europe/Australia) (North/South America)
Push Left control
stick forward.
Push Right control
stick forward.
Pull Left control
stick backward.
Pull Right control
stick backward.
Mode II
Mode I
(Europe/Australia) (North/South America)
MOVE FORWARD
MOVE BACKWARDS
Push Right control
stick forward.
Push Left control
stick forward.
Pull Right control
stick backward.
Pull Left control
stick backward.
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13
THE COORDINATED TURN:
Flying the VNR 3DXL™ in forward flight is different than flying an
airplane. You must coordinate both the tail rotor with your elevator and
aileron cyclic movements instead of just banking with the aileron and
pulling back on the elevator cyclic. To enter a turn, apply a slight amount
of Aileron (25%), and while doing so, apply about the same amount of tail
rotor and a very small amount of up Elevator (10%) roughly to keep the
nose of the helicopter up. This is your basic turn. You might nd that you
use more tail rotor to bring the tail around than you do Aileron movement.
Mode IIMode I
(Europe/Australia) (North/South America) Mode IIMode I
(Europe/Australia) (North/South America)
ROTATE LEFT
ROTATE RIGHT
Push Left control
stick left.
Push Left control
stick left.
Push Left control
stick right
Push Left control
stick right
Note! Direction is reversed when the Heli is facing you!
Note! Direction is reversed when the Heli is facing you!
Push Right control
stick left.
Push Right control
stick right
Push Right control
stick left.
Push Right control
stick right
SLIDE RIGHT WHEN FACING YOU
SLIDE LEFT WHEN FACING YOU
THE STALL TURN:
Once you have mastered the basic box pattern of hovering and basic
foward flight, a fun and easy maneuver to do is the stall turn. In the stall
turn you start the maneuver in Fast Foward Flight (FFF), and then pull
back on the Elevator and full collective as if it were to enter into a loop,
but once the helicopter is vertical,
relax the Elevator and pull back
the collective. When you run out
of vertical momentum at the top,
input left or right tail rotor and
swing the tail around 180o, so
that as the helicopter is heading
back towards the ground it is
nose down again. Then as you
are in your down line, apply up
elevator and more positive pitch
to level the helicopter back into
forward flight
Return control sticks to
Neutral to leave turn
Hold same control stick
commands as helicopter turns
Apply 20% Left Aileron,
10% Up Elevator, and
turn 25-30% Rudder
Pull Up Elevator
Cyclic, Full collective
Relax Elevator
and collective
to Neutral
Input Left Tail
Rotor at top spin
helicopter 180o
Pull Up Elevator, Full collective,
and level out into forward flight
Wind Direction
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-10º
0º
+10º
Blade Rotation
Positive
Pitch
Negative
Pitch
14
50-100% Throttle
50- 0% Throttle
50- 0% Throttle = 0 to -10º of Pitch
50- 100% Throttle = 0 to +10º of Pitch
Inverted Flight
3D FLIGHT MODE
3D FLIGHT MODE
Push Left control stick
forward to increase
positive pitch.
Push Right control stick
forward to increase
positive pitch.
Pull Left control stick
backward to increase
negative pitch.
Pull Right control stick
backward to increase
negative pitch.
Mode II
Mode I
(Europe/Australia) (North/South America)
NORMAL FLIGHT MODE
50-100% Throttle
50-0% Throttle Push Right control
stick forward and
backward.
Push Left control
stick forward and
backward.
XII. 3D AEROBATIC FLYING
NOTE: You should master basic flying skills BEFORE attempting
3D aerobatic flying!
Now that you have mastered the basic flying skills, it’s time to learn
some aerobatic maneuvers. When learning to fly 3D maneuvers,
altitude is extremely important. If a problem occurs, the more altitude
you have, the more time you’ll have to correct and recover.
3D Flying Mode:
To fly aerobatic maneuvers, the helicopter must be in 3D Flight Mode.
The Flight Mode switch is located in the upper right of the radio
switches between Normal and 3D flight modes (Fig. U). In Normal
Flight Mode, the first 50% of the throttle movement is for spooling
up the rotor head. As throttle input passes the 50% mark, the CCPM
system gradually increases the pitch of the blades to create lift and
get the helicopter into the air. NOTE: All flying in the Normal Flight
mode will occur above 50% throttle. Landing will also occur in the
Normal Flight Mode. In the 3D Flight Mode, the throttle stick
FLIGHT MODE
N
1
Normal Flight Mode
3D Flight Mode
Fig. U
Blade Pitch
function switches from controlling the throttle to controlling the pitch angle
of the rotor blades. The VNR 3DXL™ must be flying to switch into the
3D Flight Mode so therefore, you should only switch into the 3D Flight
Mode when the throttle input is 50% or higher. When the helicopter is in
the 3D Flight Mode, the CCPM system will hold the motor at a constant
RPM. The throttle stick is now controlling the pitch. At 50% throttle stick,
the blades will have 0% pitch (they will be flat). Increasing the throttle
input above 50% will add positive pitch to the blades and generate more
lift. Decreasing the throttle input below 50% will add negative pitch to the
blades and force the helicopter down when flying upright. Understanding
this factor is key to successful 3D flight. There are very few instances
where you will use negative pitch while flying upright but when you
are inverted, less throttle stick will create more negative pitch, which
translates into positive pitch (because you’re upside down) and the VNR
3DXL™ will gain altitude (see The Flight Envelope section on page 9).
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15
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
-25% 0%0%0%
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
-25% 0% 0% 0%
Wind Direction
Stick Input #1 Fast Forward Flight (FFF)Stick Input #1 Fast Forward Flight (FFF)
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
+75% 0%0%0%
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
+75% 0% 0% 0%
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
-25% 0%0%-25%
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
-25% 0% -25% 0%
Stick Input #2 Start the loopStick Input #2 Start the loop
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
+100% 0%0%-50%
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
+100% 0% -50% 0%
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
+25% 0%0%-50%
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
+25% 0% -50% 0%
THE LOOP
NOTE: You should master basic ying skills BEFORE attempting
3D aerobatic ying!
3D Maneuvers:
There are many advanced aerobatic 3D maneuvers that you will be able
to perform with your VNR 3DXL™ as your skill level increases. Until
then we will start with two of the basic maneuvers that start the more
advanced tricks.
The Roll:
The the rst 3D maneuver you should learn is the roll. The illustrations to
the right will show you the stick inputs and helicopter movements needed
to peform a roll. Start the roll from Fast Forward Filght (FFF) heading in
a down wind direction. If it is your rst time performing a roll or any other
3D maneuver, make sure you have plenty of altitude so you can recover
if anything goes wrong.
Inverted Hover:
If you want to hover the VNR 3DXL™ inverted, use the same stick inputs
for the roll but when you get the helicopter inverted, bring the aileron
stick back to its zero position at center and use small inputs of negative
throttle (negative pitch) and aileron stick inputs to keep the VNR 3DXL™
level during inverted flight. To exit inverted flight, continue the steps used
to nish the roll.
The Loop:
The loop should only be attempted after you have mastered the controls
associated with the roll. The loop is a FFF maneuver that should be
practiced at a higher altitude. Use the illustrations and stick input
diagrams shown below to perform the loop.
THE ROLL AND INVERTED HOVERING
Note! Direction is reversed when the VNR 3D is facing you!
Start from Fast Forward Flight (FFF) in 3D mode Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
Add 25% positive throttle and 100% Right Aileron to start
rolling the heli.
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
+75% 0%0%0%
0%0% +25% 100%
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
+75% 0% 0%
0% 0%
0%
+25% 100%
i
Pull back to 25% negative throttle when the heli goes
inverted while keeping 100% Right Aileron to finish the roll.
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
As the heli returns to level flight, bring the Elevator/Aileron
nput back to 0% and the throttle to +75%
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
0%0%
0%0%
-25% 100%
+75% 0%
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
0% 0%
0% 0%
-25% 100%
+75% 0%
Mode I Stick Inputs:
Elevator/Rudder Throttle/Aileron
-60% 0% +50% 0%
Mode II Stick Inputs:
Throttle/Rudder Elevator/Aileron
+50% 0% -60% 0%
Stick Input #5 Bring the loop around Stick Input #5 Bring the loop around
Stick Input #6 Finish the loop
Stick Input #6 Finish the loop
Stick Input #4 Top of the loop Stick Input #4 Top of the loopStick Input #3 Bring the loop to the top Stick Input #3 Bring the loop to the top
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XIV. EXPLODED VIEW
XIII. WHAT TO DO AFTER A CRASH
Eventually all of us crash. The following guide will help you look for
common areas of damage when the inevitable happens.
1. If the boom has a kink, is bent severly, or broken, chances are the belt
has been damaged. Even if it is not broken, take it out and inspect the
belt closely. Look for any missing teeth, excess wear, and small nicks
in the rubber. If you are in doubt of it at all, replace the belt.
2. On even hard landings, damage, though not readily noticable may
occur. If on the next flight the helicopter shakes, and the tail bobs up
and down, you have probably bent the feathering spindle. They can be
pulled out and rolled along a glass surface. If there is even a tiny bit of
wobble you will notice it on the glass surface; replace the spindle.
3. If you have crashed the helicopter and did not cut off the throttle, or
you hit head rst, chances are that you have bent the main shaft.
Typically just rotating the head by hand you will spot a bent main shaft,
though rolling the shaft on a piece of glass as is done with the
feathering spindle is the best way to nd out.
4. If you have bent the main shaft or feathering spindle, chances are that
the bearings are damaged. A slight flat spot on the bearing can occur
which can lead to vibration, or eventualy failure of the bearing. Blade
grip bearings and especially main shaft bearing should be replaced.
5. Check all plastic parts for cracks. Try flexing the part slightly, as cracks
may not show up unless you put a small load on them. For example,
check the mixing arms or blade grips.
6. With no power to the helicopter, carefully move each servo arm in the
typical movement the servo would make, and listen for any broken
gears. If there are, replace the servo.
7. Go over all ball pushrods once the helicopter has been put back
together and make certain they will not pop loose easily, as pushrods
which do not look broken can be stressed in a crash enough that they
will not hold anymore.
VENF-7790
VENF-7792
VENF-7792
VENF-7793
VENF-7794
VENF-7794
VENF-7791
VENF-7791
VENF-7795
VENF-7796
VENF-7803
VENF-7795
VENF-7796
VENF-7799
VENF-7796
VENF-7796
VENF-7800
VENF-7798
VENF-7801
VENF-7804
VENF-7802
VENF-7813
VENF-7796
VENF-7797
VENF-7806
VENF-7807
VENF-7808
VENF-7810
HEAD ASSEMBLY TAIL ASSEMBLY
16
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HELICOPTER ASSEMBLY
17
VENF-7811
VENF-7809
VENF-7817
VENF-7814
VENF-7815
VENF-7825
VENF-7816
VENF-7818
VENF-7811
VENF-7819
VENF-7820
VENF-7823
VENF-7828
VENF-7830
VENF-7815
VENF-7827
VENF-7826
VENF-7832
VENF-7833
VENF-7835
VENF-7822
VENF-7790
VENF-7790
VENF-7792
VENF-7792
VENF-7793
VENF-7794
VENF-7794
VENF-7791
VENF-7791
VENF-7795
VENF-7796
VENF-7803
VENF-7795
VENF-7796
VENF-7796
VENF-7796
VENF-7799
VENF-7797
VENF-7796
VENF-7796
VENF-7800
VENF-7798
VENF-7801
VENF-7804
VENF-7802
VENF-7805
VENF-7806
VENF-7807
VENF-7808
VENF-7809
VENF-7810
VENF-7813
VENF-7824
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18
XV. PARTS LIST
VENF-7790
Main Blades
VENF-7797
Pivot Ball Set
VENF-7804
Swashplate
VENF-7811
Tail Pushrod Support Set
VENF-7791
Main Blade Grips
VENF-7798
See Saw
VENF-7805
Tail Struts
VENF-7812
Tail Drive Belt
VENF-7792
Flybar Paddles
VENF-7799
Feathering Spindle
VENF-7806
Tail Gearbox Housing
VENF-7813
Tail Belt Pulley
VENF-7793
Flybar
VENF-7800
Head Block
VENF-7807
Tail Stabilizer Set
VENF-7794
Flybar Weights
VENF-7801
Anti-rotation Guide Base
VENF-7808
Tail Rotor Blades
VENF-7795
Mixing Arm Set
VENF-7802
Washout Base
VENF-7809
Tail Boom
VENF-7796
Pushrod Assembly
VENF-7803
Pitch Links
VENF-7810
Tail Rotor Assembly
VENF-7814
Tail Rotor Pushrod
VENF-7815
Main Frame Assembly
VENF-7816
Main Gear
VENF-7817
Guide Pulley Set
VENF-7818
Main Shaft
VENF-7819
Lower Chassis Assembly
VENF-7820
Landing Gear Set
VENF-7821
Bearing Set
VENF-7822
Canopy
VENF-7823
Canopy Mount Set
VENF-7824
Screw Set
VENF-7825
Main Servo
VENF-7827
V-Series 3DXL™
Brushless Motor
VENF-7828
Receiver
VENF-7829
Transmitter
VENF-7830
11.1v 1500mah LiPO
Battery
VENF-7832
Heading Lock Gyro
VENF-7826
Tail Servo (High Speed)
North America Crystal Sets:
VENF-7745A - Crystal Set: Ch. 51 72.81MHz FM - US
VENF-7745B - Crystal Set: Ch. 52 72.83MHz FM - US
VENF-7745C - Crystal Set: Ch. 53 72.85MHz FM - US
VENF-7745D - Crystal Set: Ch. 54 72.87MHz FM - US
VENF-7745E - Crystal Set: Ch. 55 72.89MHz FM - US
VENF-7745F - Crystal Set: Ch. 56 72.91MHz FM - US
Australia Crystal Sets:
VENF-7745G - Crystal Set: Ch. 612 36.120MHz FM - AU
VENF-7745H - Crystal Set: Ch. 618 36.180MHz FM - AU
VENF-7745I - Crystal Set: Ch. 622 36.220MHz FM - AU
VENF-7745J - Crystal Set: Ch. 628 36.280MHz FM - AU
VENF-7745K - Crystal Set: Ch. 634 36.340MHz FM - AU
VENF-7745L - Crystal Set: Ch. 640 36.400MHz FM - AU
VENF-7833
Brushless Speed Control
VENF-7835
Battery Strap
VEN-0653
2-3 Cell LiPO Balance
Charger
VEN-7834
Tool Set
United Kingdom/Europe Crystal Sets:
VENF-7745M - Crystal Set: Ch. 612 35.120MHz FM - UK/EU
VENF-7745N - Crystal Set: Ch. 618 35.180MHz FM - UK/EU
VENF-7745O - Crystal Set: Ch. 622 35.220MHz FM - UK/EU
VENF-7745P - Crystal Set: Ch. 628 35.280MHz FM - UK/EU
VENF-7745Q - Crystal Set: Ch. 634 35.340MHz FM - UK/EU
VENF-7745R - Crystal Set: Ch. 640 35.400MHz FM - UK/EU
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19
If you are unsure of how to charge the battery included with this product, please seek the advice of your local hobby shop or contact Venom Customer
Service at 800.705.0620.
WARNING!
Charging and discharging batteries has the potential for re, serious injury to persons and damage to property. The user of this battery agrees to accept
responsibility for all such risks. Venom Air Corps™, its afliates, manufacturers, distributors, and retail partners can not control the use, application,
charging or installation of this product and shall not be held responsible for any accident, injury to persons, or damage to property resulting from the use
of this product.
Read all Safety Guidlines, Charging Instructions, New Battery Break-In, and Battery Disposal Instructions before using batteries.
Store battery packs out of the reach of children and pets. Children under the age of 18 must be supervised by a responsible adult.
This product contains chemicals known to the State of California to cause Cancer, Birth Defects and other Reproductive Harm.
XVI. LiPO BATTERY SAFETY GUIDELINES
LiPO BATTERY WARRANTY
This product is warranted against defects in original material and workmanship only. No term warranty is offered with this product. In no case shall
Venom Power’s liability be greater than the actual purchase price of this product. See the Warranty page for more information on replacement.
SAFETY GUIDELINES:
1. Always use a charger specically designed for Lithium Polymer batteries. Never use NiCd or NiMH type chargers to charge LiPO batteries. Failure to
do so will damage the batteries and may cause re and personal injury.
2. Always charge batteries in a re proof container or in the open, away from flammable materials. Do not charge batteries on wood, cloth, carpet, in
your helicopter, or on any other flammable material. Keep a chemical re extinguisher nearby in case of re.
3. Never leave batteries unattended while charging. Always observe batteries when charging so that you may react quickly to any problems that may
occur.
4. If a battery is deformed, swollen or appears damaged, DO NOT CHARGE. IMMEDIATELY DISCHARGE.
a. Discharge battery pack to 2.5 Volts per cell or less.
b. Fill a bucket with enough water to submerge the battery pack completely.
c. Add salt to the water until no more salt will dissolve; the water is now saturated with salt.
d. Place the battery pack in the bucket and leave submerged in the salt water solution for 24
hours.
e. Remove the battery pack from the salt water and test the voltage.
f. If the voltage does not read 0.0 Volts, re-submerge an additional 24 hours and re-test until
the voltage reads 0.0 Volts.
g. Once the battery pack has been discharged to 0.0 Volts, it is safe to dispose.
5. Any time you have an accident with your helicopter or if the battery swells “balloons” or if the battery exceeds temperature guidelines, follow these
safety steps:
a. Immediately remove the battery pack from your helicopter or charger.
b. Place the battery in a non-flammable, well ventilated area.
c. Observe the battery for 30 minutes from a safe distance.
d. After 30 minutes, if the pack appears stable, is not swollen and does not show any signs of
damage, return the battery pack to normal use with caution.
6. Do not let exposed battery wires touch each other. This may cause the battery to short and potentially cause a re.
7. Store your batteries in a cool, dry place between 40-80 Fº / 4-26 Cº. LiPOs should be charged to 50% of their capacity minimum before being stored.
8. Do not assemble unmatched or dissimilar LiPO cells.
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20
XVI. LiPO BATTERY SAFETY GUIDELINES (CONT)
CHARGING INSTRUCTIONS:
1. Venom Power™ LiPO cells feature a separate balancing plug that isolates each cell in a pack and charges it independently. This ensures that all cells
peak equally and discharge at the same rate during use preventing one or more cells from discharging past their safe low voltage cut off rating. The
balancing plug can be identied by the multi wire Molex plug.
2. Charge each battery pack individually. Never charge battery packs in series. Charging packs in series may result in improper charger cell recognition
and an improper charging rate that may lead to overcharging, cell damage and re. We recommend using the Venom Power™ LiPO Balance Charger
(VEN-0652) when charging your LiPO batteries. The LiPO Balance Charger is designed to automatically peak charge individual pack cells (up to 5 cell
packs) with convenience and ease.
3. Always check to make sure that your charger settings match those listed on the battery pack label. Refer to the battery label for the proper cell count
and charging amperage setting. Selecting a cell count or amperage charge rate other than the one listed on the battery pack will damage the battery
and may cause a re.
4. Make sure the battery connections are connected in the correct polarity. A wrong connection will damage the battery and may cause a re.
5. Always check battery pack voltage before charging. Do not discharge LiPO batteries below 3.0 Volts per cell. The voltage of a typical LiPO cell at
rest is 3.7 Volts. If the battery pack appears swollen or damaged, DO NOT attempt to charge it. Check the voltage and follow Step 5 from the Safety
Guidelines section.
6. Do not charge at over 1C current. C= battery pack mah capacity ÷ 1000. Divide the battery mah capacity by 1000 to determine the proper charge
rate. Example: 1200mah ÷ 1000 = 1.20 Amps Charge Rate for Venom Power LiPO Battery Packs, example:
a. 800mah Capacity = 0.80 Amps
b. 1200mah Capacity = 1.20 Amps
c. 2000mah Capacity = 2.00 Amps
7. Do not peak charge to more than 4.2 Volts per cell. Example: A 2S Battery Pack contains two cells, therefore the peak voltage should not exceed 8.4
Volts.
8. Battery Temperature is critical. For optimum performance in cold climates, warm the pack to 100Fº/ 37Cº before use. Please use the following
guidelines:
a. Charge Temp Range: 32 - 110Fº / 0-43Cº
b. Discharge Temp Range: 32 - 140Fº / 0-60Cº
c. Storage Temp Range: 40 - 80Fº / 4-26Cº
9. If the battery exceeds the temperature guidelines as above, isolate the battery pack and follow Step 5 from the Safety Guidelines section.
NEW BATTERY BREAK-IN:
1. New LiPO battery packs may require 12 or more charge/discharge cycles before the battery’s optimum performance is reached.
2. During this time, it is recommended that the battery pack is not discharged over 7C. 7C = 7 x 1C, where 1C= battery pack mah capacity ÷ 1000.
Example: [(1250mah ÷ 1000) x 7] = 8.75 Amps
Recommended Maximum Discharge Rates During Break-In Period
a. 800mah Capacity = 5.4 Amps
b. 1200mah Capacity = 8.4 Amps
c. 2000mah Capacity = 14 Amps
DISCHARGING INSTRUCTIONS:
1. Never discharge a LiPO battery pack at more than the manufacturers recommended discharge rate. The discharge rate is:
Battery pack capacity (mah) ÷ 1000 x Pack C rating
Example for 15c packs: (3200 mah ÷ 1000) x 15c = 48 Amps
Example for 20c packs: (2100 mah ÷ 1000) x 20c = 42 Amps
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