Carson UL-COPTER C35 RTF User manual

CARSON UL-Copter C35 50 050 7029
RADIO CONTROLLED UL-COPTER C35 RTF
Instruction Manual Page 2 - 22
쮕Betriebsanleitung Seite 23 - 43
Mode d’emploi Page 44 - 64
Instrucciones Página 65 - 85
Istruzioni d’uso Pagina 86 - 106

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CARSON UL-Copter C35 50 050 7029
Dear Customer
We congratulate you for buying this CARSON RC model
helicopter, which is designed using state of the art technology.
According to our policy of steady development and
improvement of our products we reserve the right to make
changes in specifications concerning equipment, materials and
design of this product at any time without notice.
Specifications or designs of the actual product may vary from
those shown in this manual or on the box.
The manual forms part of this product. Should you ignore the
operating and safety instructions, the warranty will be void.
Keep this guide for future reference.
Limited Warranty
This product is warranted by CARSON against manufacturing
defects in materials and workmanship under normal use for 24
months from the date of purchase from authorised franchisees
and dealers. In the event of a product defect during the
warranty period, return the product along with your receipt as
proof of purchase to any CARSON store. CARSON will, at its
option, unless otherwise provided by law:
(a) Correct the defect by repairing the product without charging
for parts and labour
(b) Replace the product with one of the same or similar design;
or
(c) Refund the purchase price.
All replaced parts and products, and products on which a
refund is made, become the property of CARSON. New or
reconditioned parts and products may be used in the
performance of warranty services. Repaired or replaced parts
and products are warranted for the remainder of the original
warranty period. You will be charged for repair or replacement
of the product made after the expiration of the warranty period.
The Warranty does not cover:
• Damage or failure caused by or attributable to acts of God,
abuse, accident, misuse, improper or abnormal usage,
failure to follow instructions, improper installation or
maintenance, alteration, lightning or other incidence of
excess voltage or current;
• Damage caused by losing control of your car;
• Any repairs other than those provided by a CARSON
Authorised Service Facility;
• Consumables such as fuses or batteries;
• Cosmetic damage;
• Transportation, shipping or insurance costs; or
• Costs of product removal, installation, set-up service
adjustment or reinstallation
This warranty gives you specific legal rights, and you may also
have other rights which may vary according to the country of
purchase.
Declaration of conformity
Dickie-TAMIYA GmbH & Co. KG hereby declares that this model
kit with radio, motor, battery and charger is in accordance with
the basic requirements of the following European directives:
98/37EG and 89/336/EWG and other relevant regulations of
guideline 1999/5/EG (R&TTE). The original declaration of
conformity can be obtained from the following address in
Germany:
Dickie-TAMIYA GmbH & Co. KG • Werkstraße 1 • D-90765 Fürth
• Germany
Tel.: +49/ (0)911/ 9765-03
The product you have purchased is powered by a
rechargeable lithium-polymer, NiCd or NiMH battery.
The battery is recyclable. At the end of its useful life,
under various national / state and local laws, it may
be illegal to dispose of this battery into the
municipal waste stream.
Check with your local solid waste officials for details
in your area for recycling options or proper disposal.
We wish you good luck and a lot of fun with your CARSON
model helicopter!
Before driving your new model carefully read these instructions!

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Contents
Included Items
• Model assembled and ready to fly
• 4-channel hand transmitter 35 MHz FM
• 7.4 V Li-Po flight battery 1200 mAh
• LiPo balance charger with power adapter
• 2 servos, preinstalled
• Operating instructions
• Flight simulator software and USB lead
• Mixed electronics with integrated gyro
Preface.......................................................................................... 2
Included Items.............................................................................. 3
Safety Precautions ........................................................................4
a. The Helicopter with more Functions! ..................................... 9
b. RC Functions of the Helicopter............................................. 10
c. Technical Data........................................................................ 10
d. Four Channel Remote Control Transmitter........................... 11
e. Conversion Instructions from Mode 2 (Throttle Left) to
Mode 1 (Throttle Right).......................................................... 13
f. Preparations........................................................................... 16
g. Flight operation...................................................................... 17
h. Ground Effect......................................................................... 20
i. Free Flying Training................................................................ 20
j. How to Change Frequencies................................................. 21
j. Tuning tip................................................................................ 21
k. Troubleshooting ..................................................................... 22
All spare parts + equipment..................................................... 107
Exploded Drawing .................................................................... 108
Spare parts ............................................................................... 112

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CARSON UL-Copter C35 50 050 7029
Safety Precautions
This model is not a toy!
• This radio controlled model is not a toy. Learning how to
control it correctly is a gradual process.
• Children under 14 years of age should be supervised by an
adult.
Driving a radio controlled car is a fascinating hobby. However, it
has to be practised with the necessary caution and respect.
A radio controlled model car can cause damage and injury and
the user is liable for any such incident.
Make sure that you have sufficient insurance cover when
practising your hobby.
Only a well maintained model will function in a correct manner.
Only use approved spare parts and never improvise with any
unsuitable items.
It is the user’s responsibility to ensure that the model is
functioning correctly and that all nuts, bolts and screws are
properly tightened.
General
• Read the Operating Manual carefully and keep it for future
reference.
• Make yourself familiar with all the instructions for flight
operation.
Preparations
Never start flying before you have made
sure of the following points:
• Pay attention to visible damage on the model, remote
control, battery charger, and lithium-polymer battery.
• Ensure that the model is functioning correctly and that all
nuts, bolts and screws are properly tightened
• Batteries for transmitter and receiver are well charged and of
the correct voltage
• Fully extend the transmitter antenna and make sure that
nobody in your environment controls a model with the same
frequency (number on the crystal) and that there is no
discernable interference.
• Make sure that all servos respond correctly to the signals of
the transmitter.
• Always check the radio operation before starting the
helicopter.
Flight operation
The model is primarily conceived for indoor flights since its
own slight weight and instable flight position resulting from the
construction type make it very susceptible to air movements.
Moreover the components are not dust- and moisture-proof.
Do not fly any longer than one battery
charging!
Afterwards the motor must cool down for at least 5 minutes.
Then recharge the battery. Avoid low discharge in any case.
Lay the antenna wire in such a way that it cannot get into
movable parts. Ensure for traction relief by fixing the wire to a
location on the fuselage with adhesive tape.

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Transmitter
At first always switch the transmitter on before the receiver is
connected to the battery to avoid any uncontrolled reaction of
the receiver to a foreign radio pulse.
For simultaneous operation of several models, the model may
only be operated on a free frequency.
The same frequency may not be employed when using different
modulation types (FM, PPM, AM, PCM).
Use the frequency streamer on the antenna when you fly with
other pilots.
After finishing the flight, first disconnect the receiver and the
motor from the battery, and then switch the transmitter off.
The motor can spontaneously start up from an interference
pulse, independent of whether your RC equipment is switched
on or not. The rotor can then cause grave injuries.
The repair of a defective remote-control system may only be
carried out by experts.
The approval of the remote-
control system expires if there
are any arbitrary interventions in
the electronics.
It is best to fly only
in closed rooms
• With a free space of at
least 3 m in all directions
• On a smooth foundation
• Without standing
(furniture) or moving
obstacles (persons,
animals)
• In rooms without air
draught
If you want to fly
outdoors, do this
• Only when there is no
wind,
• At a distance of at least
3 km from the next official
model airplane flying site, otherwise you must make an
agreement about frequency usage.
Do not fly
• If you are overtired or your reactivity is impaired in any way.
• At wind-force 1 or greater
• Keep your model away from high voltage cables or radio
masts.
• Never use the model when lightning is present. Atmospheric
disturbances can affect the signals of your remote
controlling transmitter.
• Choose a sufficiently open & large area; it should be free of
obstacles.
• Always avoid running radio control models in restricted,
confined or populated areas.
• Keep away from roads, highways, people and animals.
35.950 MHz
35.950 MHz

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CARSON UL-Copter C35 50 050 7029
Rotor
• Damaged rotor blades must be exchanged! Refrain from
attempts at repair!
• Keep away from the rotors, as soon as the battery is
connected.
• Avoid presence in the plane of rotation of the rotors.
Do not operate the model while seated, so that you can rapidly
get out of the hazardous area if necessary.
Tighten the retaining bolts of the rotor blades only so much that
in flight these can orient themselves by 180° to each other only
with centrifugal force.
Battery charger
Employ exclusively the enclosed battery
charger.
• Operate the battery charger only on fire resistant surfaces
and also place the battery on a non-inflammable surface
while charging.
• Ensure for sufficient ventilation of the battery charger while
charging.
• Never leave the battery charger unattended during the
charging process.
• Never mix fully charged batteries and batteries which have
already run low, or batteries of a different capacity at
the same time.
• When charging the batteries pay attention to the correct
polarity.
Never subject the battery charger, the
batteries and the model to adverse local
conditions!
These are for instance:
• Wetness, too high air humidity (> 75% rel., condensing).
Do not touch the battery charger with wet hands.
• Never operate the battery charger right after it has been
brought from cold into warm surroundings. The resulting
condensation water can destroy the device. Permit the
device to attain the ambient temperature while
unconnected.
• Dust and inflammable gases, vapours or solvents, benzene
• too high ambient temperatures (> about +40 °C), direct solar
radiation
• open fire, ignition sources
• mechanical stresses such as shocks, vibrations
• strong contamination
• strong electromagnetic fields (motors or transformers) or
electrostatic fields (charges)
• transmitters (radio telephones, transmitters for model
building etc.). The transmitter radiation can lead to the
malfunction of the charging operation or to the destruction
of the battery charger and thereby also of the batteries.
Permit the battery charger to cool down
between charging operations. Disconnect
the battery charger from the power when
the charging operation is finished.
A defective battery charger may no longer be employed.
If it is assumed that the device is defective, i.e. if
• the device shows visible damage,
• the device no longer works and
• after longer storage under unfavourable conditions or
• after severe transportation stress, then it should be made
inoperative without delay and secured against unintentional
operation.
Dispose of the unusable (irreparable) battery charger according
to the prevailing statutory regulations.
For safety and registration reasons (CE), the arbitrary
reconstruction and/or modification of the battery charger is not
permitted.

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Lithium-Polymer battery
Employ the enclosed battery exclusively for this model.
Only employ an original part as the replacement battery.
• Load the battery exclusively outside of the model and away
from easily flammable materials! It is normal that the battery
warms up when charging.
• Do not overload or exhaustively discharge the battery!
• Pay attention to the charge indicators on your transmitter.
• Ensure that the batteries for the radio and receiver are fully
charged and of the correct voltage. When the batteries are
running low you might loose control of your model.
• Charge the LiPo battery at least every six months in order to
avoid low discharging.
• Remove the charged battery from the battery charger in
order to avoid self-discharging. If not using the model for a
longer time, the rechargeable battery has to be removed.
At the end of its useful life, under various national / state and
local laws, it may be illegal to dispose of this battery into the
municipal waste stream. Check with your local solid waste
officials for details in your area for recycling options or proper
disposal.
The batteries must not
• Be immersed in liquid,
• Be thrown in the fire or subjected to high temperatures or
• Mechanical stresses or
• Be taken apart or damaged
• Or be short-circuited.
If during operation or while charging or storing the battery you
perceive a noticeable smell, a discolouration, excessive heating
or deformation or any other abnormality:
• Disconnect the battery from the battery charger
• Separate the battery from the consumer
• No longer employ the battery.
If electrolyte drains out:
• Avoid contact with eyes and skin!
• Wash the affected locations immediately with clear water
and
• Consult a physician.
Advice
• Non-rechargeable batteries are not to be recharged.
• Rechargeable batteries are to be removed from the model
before being charged.
• Rechargeable batteries are only to be charged under adult
supervision.
• Batteries are to be inserted with the correct polarity.
• Exhausted batteries are to be removed from the model.
• The supply terminals are not to be short-circuited.
• Please examine regularly the electronics or batteries, the
battery charger, plugs, cords, enclosure and other parts for
any damage.

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CARSON UL-Copter C35 50 050 7029
Li-Polymer battery Safety Instruction
1. Do not disassemble or reconstruct battery.
2. Do not short circuit battery.
3. Do not use or leave battery nearby fire, stove or heated
place (more than 80 degrees centigrade).
4. Do not immerse the battery in the water and sea water, or
get it wet.
5. Do not charge battery nearby the fire or under the blazing
sun.
6. Do use the specified charger and observe charging
requirement (under 1 A).
7. Do not drive a nail into the battery. Strike it by hammer, or
tread it.
8. Do not give battery impact or fling it.
9. Do not use the battery with conspicuous damage or
deformation.
10. Do not make the direct soldering on battery.
11. Do not reverse charge or overdischarge the cell.
12. Do not reverse-charge or reverse-connect.
13. Do not connect battery to the plug socket or car-cigarette-
plug.
14. Do not use battery for unspecified equipment.
15. Do not touch a leaked battery directly.
16. Do not use Lithium ion battery in mixture.
17. Keep the battery away from babies.
18. Do not continue to charge battery over specified time.
19. Do not get into a microwave or high pressure container.
20. Do not use a leaked battery nearby fire.
21. Do not use or leave the battery under the blazing sun (or
heated car by sunshine).
22. Do not use nearby the place where generates static
electricity (more than 64 V) which give damage to the
protection circuit.
23. Charging temperature range is regulated 0 degrees
centigrade and 45 degrees centigrade. Do not charge the
battery out of recommended temperature range.
24. When the battery has rust, bad smell or something
abnormal at first-time-using, do not use the equipment and
go to bring the battery to the shop which it was bought.
25. In case children use the battery, their parents teach how
to use batteries according the manual with care. And also,
when children are using the batteries, pay attention to
according to that or not.
26. Keep the battery out of the reach of children. And also,
using the battery, pay attention to be taken out from the
charger or equipment by little children.
27. If the skin or cloth is smeared with liquid from the battery,
wash with fresh water. It may cause the skin inflammation.
28. Never discharge the battery at a rate of more than 5c nor
allow the voltage to go below 6 V, as this damages the
battery.
29. Never charge the battery on a carpeted floor as this may
cause a fire.
30. Do not use the battery for equipment that is not specified
nor for any other purposes.
31. Do not touch the battery if it is leaking. If you do touch the
battery, you should wash your hands immediately.
32. Do not charge your battery for longer than specified.
33. Do not use any batteries that have swelled up or are
damaged.

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Completely preassembled, no construction required! Fun
straight out of the box! With only a little training, you will soon
be a real helicopter pilot!
Control your helicopter using all four functions. The twin rotor
design (coaxial) means that the model is extremely stable and
doesn’t require a rear rotor.
Can also be flown outdoors in still air conditions.
Approximate flight times of 5 minutes are possible with the
enclosed Lithium polymer battery.
Features:
• Extremely stable flight behaviour
• Completely assembled Ready To Fly
• Including professional 4-channel 35 MHz FM radio control
• + GYRO (stabilizing function) + mixed electronics
• With lipo battery 7.4 V/ 1200 mAh and lipo “balance” charger
• Fuselage from dyed Lexan
RTF helicopter with 4-channel radio
control 35 MHz, lipo battery
7.4 V/ 1200 mAh, 230 V plug charger.
a. The Helicopter with more Functions!
Paddle bar
Rotor blade
Rotor blade
Rotorblade
holder
Rotor shaft
Body
Landing gear
Swivel-mounted engine nacelles
Swivel-mounted engine nacelles
Steering gear
Crossmember

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CARSON UL-Copter C35 50 050 7029
The following functions are controlled
with the two remote control levers of
the portable transmitter.
For every control function there is a trim slider on the
remote control transmitter which permits minor
corrections of the neutral position.
Pitch function
(ascend / descend)
The pitch function controls the flying height of this model
helicopter over a common variation in speed of the two
rotors. The control takes place with the left control lever.
To do this, move it forwards and backwards in a
continuously variable fashion. Contrary to the other control
functions this lever does not spring back into the middle
position. If the control lever is totally drawn towards the back,
then the motors are off and the rotors stand still. If the control
lever is pushed forward then the motor starts running and the
rotors run with increasing speed depending on the lever
position.
In the middle position of the control lever, the helicopter should
hover at a fixed height.
Tail function
(Rudder function)
The tail function causes a rotation of the model around the
vertical axis. Since the helicopter has two rotors, no torque
ensues around the vertical axis at the same speed of the rotors
(rotor shaft). The helicopter also therefore requires no tail rotor
for stabilization.
Roll function
(Aileron function)
The roll function causes the lateral flight of the helicopter.
The control takes place with the right control lever.
If the lever is moved to the left, then the model hovers laterally
to the left. Moving the lever to the right makes the model move
laterally to the right.
Nick function
(Elevator function)
The nick function causes forwards and backwards flight of the
helicopter. When the nose drops downwards, a part of the lift is
transferred into forwards thrust.
If conversely the nose is raised, then the model flies backward.
the control takes place with the right control lever.
Press the lever forward to introduce forwards flight, pull back to
have the model fly backwards.
b. RC Functions of the Helicopter
c. Technical Data
Principal rotor diameter 2 x 350 mm
Length 420 mm
Height 160 mm
Weight 260 g
Battery charger „Lipo Balance“
Input: 100-240 V/ AC, 50-60 Hz
Output: 7.4 V und 11.1 V/ 0.3 A – 1.2 A
Horizontal axis
(Roll)
Vertical axis (Tail)
Transverse
axis (Nick)

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Included in the scope of delivery is a remote control
transmitter with two remote control levers, which are assigned
the two respective functions.
These functions are activated by the movements forwards /
backwards and right / left.
AA X 8 batteries are required for the
transmitter (not included)
Put the charged batteries in the battery compartment of the
transmitter.
Pay attention to the correct polarity!
d. Four Channel Remote Control Transmitter
Pitch (Lift)
Tail (Rudder)
Trim lever nick
ON/OFF switch
Telescopic antenna
Functions on the back of the transmitter:
• Charging socket
• Battery chamber
Trim lever roll
Roll (Ailerons)
Nick (Elevators)
Trim lever pitch
Trim lever tail
Transmitter crystal
4 Reverse switch for tail rotor function
3 Reverse switch for acceleration
2 Reverse switch for pitch
1 Reverse switch for roll
Servo reverse switches to change the reaction
direction.

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CARSON UL-Copter C35 50 050 7029
Functions of the remote control
Impact of the control lever positions on the model
(Directions seen in flight direction)
If the model reacts precisely the opposite to one or more control functions, you can press the corresponding servo
reverse switches on the front of the transmitter to change the reaction direction.
Ascent Left control lever
forwards
Descent Left control lever
backwards
Turn nose
to the left
Left control lever
to the left
Turn nose
to the right
Left control lever
to the right
Hover forwards Right control lever
forwards
Hover
backwards
Right control lever
backwards
Hover
to the left
Right control lever
to the left
Hover
to the right
Right control lever
to the right

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Loosen all 4 screws on the back of the transmitter (picture 1).
Important!!
Please remove all batteries before attempting the conversion!!
e. Conversion Instructions from Mode 2 (Throttle
Left) to Mode 1 (Throttle Right)
Picture 1
Having opened the housing, the spring for the steering lever
and the metal clip for the throttle lever can be removed by
using a small box spanner.
12
3
4
Picture 2
Now mount the metal clip on to the left side
according to picture. Picture 3
AB

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CARSON UL-Copter C35 50 050 7029
On the right hand side you
attach the spring according to
picture 4. The spring adjuster
is mounted by using a Phillips
head screw and the spring is
put into the holder by means of
tweezers.
Picture 4
On the left-hand side of the
main board (Illustration 5)
there is a small connector,
which you must carefully
remove.
It is imperative that the board
is not damaged. Then undo
the screw to which the aerial
is secured (Illustration 6).
Now the main board can be
removed by means of the four
screws (Illustration 7).
Picture 5 Picture 6
Picture 7

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The four connectors of the potentiometers must now be
replugged as shown in Picture 8.
Secure the cover using the four crosshead screws. During
assembly please ensure that no cabels are trapped.
Finally put the 4-servo switch into the correct position.
(See picture 10).
Your model and your transmitter have now been converted to
mode 1.
This means:
Rotation left/right and
forwards/backwards left joystick
Throttle up/down and roll
left/right right joystick
Picture 10
Picture 8
Picture 9

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CARSON UL-Copter C35 50 050 7029
Installing the flight battery:
Insert the flight battery in the battery holder and thread the
connecting lead through the opening of the cover.
f. Preparations
General remarks
• If you have no or little experience with airplane models, you
should first practice with a Flight simulation program.
• Seek advice from an experienced R/C user for the first few
attempts.
• Acquaint yourself with the control functions of the
transmitter.
• Begin your flight experiments standing behind the model,
the line of sight in the flight direction. In this case, the control
reaction is the same as the direction of control.
Furthermore acquaint yourself with the control of the model as
it comes towards you (side-inverted reaction to the direction of
control)!
Charging and installation of the airplane
batteries
Always charge the battery outside the model on a fire-proof
surface.
1. Connect the battery charger with the battery adapter.
2. Plug the plug battery charger in a power socket.
3. Put the battery in a metal bowl and connect the battery with
the battery charger.
4. Make sure that the connector is inserted correctly to avoid a
short circuit.
5. Do not cover the battery!
The temperature of the battery should not exceed 60 °C during
the charging process.
The charging process is finished when the green LED on the
balance charger lights up.
Lipo Balance Charger
Warning!!!
Only charge the battery with
the charging unit supplied!!!

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Switching on the model
Ensure sufficient space in order to undertake the first flight
experiments. Even if the helicopter can later be flown in the
smallest quarters, it requires about 3m free space in all
directions.
• Set the model on a smooth and level surface, so that the
helicopter can freely glide and lift off.
• Set the helicopter about 2 m in front of yourself on the
ground, the tail pointing towards you. This way the direction
of reaction of the helicopter conforms to the direction of
control.
• Unwind the receiver antenna completely and fasten
the aerial wire with an adhesive strip to the fuselage for
traction relief.
Pull the transmitter antenna totally out.
The effective range of the remote control is reduced if the
antenna is not completely pulled out.
• Pull the left remote control lever (pitch) totally back. Also the
trim lever.
• Ensure that the trim lever for the tail rotor feature is roughly
in a central position.
• Switch the
transmitter on.
• Now connect the
charged airplane
battery to the
receiver.
Fastening the rotor blades
The rotor blades must be able to align themselves 180° to each
other solely by the centrifugal force.
• Therefore check the seating of the retaining screws (a) of the
rotor blades:
The screws may only be tightened firmly enough that the
rotor blades still fold downwards when you tip the helicopter
to the side.
(a)
The LED (1) on the receiver begins to blink. This indicates that
the electric circuit of the electronic gyro is calibrating itself.
The model may now not be moved!
When the process is concluded and the receiver is receiving
correct signals the LED lights up continuously.
If the LED blinks slowly, then the battery voltage is too low.
Recharge the battery or replace it with an original replacement
battery!
Bring all control levers into the neutral
position.
• Move the left control lever slightly forward, until the model
just lifts off from the ground.
• Pull the control lever slowly back again, so that the model
gently alights.
Move the control extremely delicately!
g. Flight Operation

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CARSON UL-Copter C35 50 050 7029
Trimming the helicopter
Already shortly before the helicopter takes off, you can
recognize whether it wants to turn or glide in a particular
direction.
Correct the deviations from the vertical ascent with the trim
slider of the tail function.
Tip of the fuselage turns to the right:
• Reduce speed and push the trim slider of the tail function on
the left remote control lever stepwise to the left.
• Push the pitch-lever forward again and check whether the
correction was sufficient, if necessary shift the trim further to
the left.
• Repeat the process until the helicopter no longer shows a
tendency to turn to the right.
Tip of the fuselage turns to the left:
• Proceed as described above, but push the trim slider of the
tail function stepwise to the right.
Check the effective range of the remote
control transmitter
Before every first start or after a crash, check the function and
effective range of the RC equipment!
In the neutral position of the control lever of nick and roll, the
wobble plate should also be in neutral position.
If this is not the case, correct the position with the trim levers of
the respective control channel on the transmitter.
• Move slowly away from the model (motor is not running!).
• Consecutively press the remote control levers nick and roll
and
• Observe the reactions of the model.
The RC equipment works faultlessly if from about 30 m
distance the model still correctly responds to the remote
control signals. The maximum range of the transmitter is about
100 m.
Never drive the model if the remote control does not work
properly! A malfunction of the radio may cause damage to the
model, property and/or serious injury.
If the remote control should fail to function perfectly, first check
the charge status of the transmitter and receiver batteries, and
ensure that nobody else is transmitting on your frequency.
„PCB-CONTROL“ Mechanical adjustment
of the difference between the level of the
rotor blades
(Rotor blade rotation, if trimming the tail rotor is no longer
sufficient.)
Warning!!! Please work very carefully, applying minimal
pressure and using a small screw driver.
1. Function of the adjusting screw: adjust left and right rotor
blades’ different speed.
a. Turning the button clockwise, left rotor blade runs
faster and helicopter turns left.
b. Turning the button anti-clockwise, right rotor blade runs
faster and helicopter turns right.
2. The “PCB CONTROL” is properly adjusted when the
helicopter no longer drifts in any direction.
Servo 1
Servo 2
Motor left
Motor right
Adjusting screw
Battery

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Model slips (drifts) or tilts to the right:
• Reduce the speed and push the trim slider of the roll-
function of the right remote control lever stepwise to the left.
• Push the pitch-lever forward again and check whether the
correction was sufficient, if necessary shift the trim further to
the left.
• Repeat the process until the helicopter no longer shows a
tendency to drift to the right.
Model slips (drifts) or tilts to the right:
• Proceed as described above, but push the trim slider of the
tail function stepwise to the right.
Mechanical correction of the servos
If the roll and nick-functions do not permit optimization by
trimming, correct the control of the swash plate by the servos.
Model slips (drifts) forward:
• Reduce the speed and push the trim slider of the nick
function on the right remote control lever stepwise
backwards.
• Push the pitch lever forward again and check whether this
was sufficient for correction, if necessary shift the trim
further to the left.
• Repeat the process until the helicopter no longer shows a
tendency to drift forwards.
Model slips (drifts) backwards:
• Proceed as described above, but push the trim slider of the
nick function stepwise forward.

20
GB
CARSON UL-Copter C35 50 050 7029
Hover flight
Hover flight means maintaining the helicopter in a stable
position in the air. Hover flight is only possible with a helicopter
and must be thoroughly practiced as a fundamental flight
formation. Acquaint yourself with the control functions of your
remote control transmitter so that this procedure gets you’re
your “flesh and blood”.
• Then set the helicopter about 2 m in front of you on the
ground, with the tail facing you.
• Leave the helicopter on the ground and first deliberately
move it slightly sidewise, forwards and backwards.
• When you have mastered control on the ground, give
somewhat more lift and permit it to hover above the ground,
without allowing the tip of the fuselage to turn or the
helicopter to drift away.
• The best procedure is to mark a position on the ground from
which you start the model.
• Attempt to hold the helicopter above this position and also
to land again on this position.
• Do not move the control lever too jerkily, because otherwise
especially the touchdown can be very hard.
• Develop a feeling for the controls by repeatedly lifting off,
floating and landing again.
• If you notice irregularities in the control or an imbalance in
the rotor,
• Land immediately and correct the necessary settings.
• Increase the flying height gradually by degrees.
ATTENTION!
Up to a height of about 30 cm, the model
is in the area of influence of the air
turbulence caused by its own rotors.
On one hand, this “ground effect” facilitates the lift off of the
helicopter since the air pressed downwards by the rotors of the
helicopter helps lift the aircraft from the ground.
But in the immediate area this effect is reversed, since the
air flowing away laterally from the helicopter creates an
underpressure and the model is actually sucked back down
towards the ground. This can lead to an ungentle landing.
For this reason the flight behaviour of the model at low heights
is rather unstable. If the restless flight behaviour causes
difficulties for you, increase the flying height by degrees.
h. Ground Effect
The helicopter is no longer in the area of influence of the air
turbulence from its own rotors as of a flying height of about 2 m
and the flight situation is more stable.
i. Free Flying Training
If you have mastered hover flight, begin
with simple flying formations:
• Train your command of the model, allow it to ascend and
descend, hover and move forwards and backward in the air
as well as execute turns.