Wichtige Informationen Version 05/10
Important Information Version 05/10
EP Helikopter „Red Hawk“ RTF 2,4 GHz
Best.-Nr: 20 78 00
Sehr geehrte Kundin, sehr geehrter Kunde,
im Zuge der Produktpflege wurde für die Ansteuerung des Heckrotors ein neues,
höherwertiges Servo eingebaut.
Bitte beachten Sie, dass dieses neue Servo abweichend von den Katalogangaben kein digitales, sondern ein analoges Servo ist.
Aus diesem Grund dürfen Sie den Gyro nur in der Betriebsart "analog"
betreiben.
Wird der Gyro auf "digital" eingestellt, so wird das Servo zerstört!
Wir bitten um Beachtung!
Ihr REELY-Team
Diese Bedienungsanleitung ist eine Publikation der Conrad Electronic SE, Klaus-Conrad-Str. 1,
D-92240 Hirschau (www.conrad.com).
Alle Rechte einschließlich Übersetzung vorbehalten. Reproduktionen jeder Art, z. B. Fotokopie,
Mikroverfilmung, oder die Erfassung in elektronischen Datenverarbeitungsanlagen, bedürfen der
schriftlichen Genehmigung des Herausgebers. Nachdruck, auch auszugsweise, verboten.
Diese Bedienungsanleitung entspricht dem technischen Stand bei Drucklegung. Änderung in Technik
und Ausstattung vorbehalten.
© Copyright 2010 by Conrad Electronic SE. 01_0510_01
EP Helicopter "Red Hawk" RTF 2.4 GHz
Item no.: 20 78 00
Dear Customer,
In the scope of product maintenance, a new servo of higher quality was built in for
controlling the tail rotor.
Please observe that this new servo is not a digital servo as indicated in the
catalogue, but an analogue one.
For this reason, you must only operate the gyro in the "analogue" operating
mode.
If the gyro is set to "digital", the servo will be destroyed!
Please observe!
Your REELY Team
These operating instructions are a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1,
D-92240 Hirschau (www.conrad.com).
All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming,
or the capture in electronic data processing systems require the prior written approval by the editor.
Reprinting, also in part, is prohibited.
These operating instructions represent the technical status at the time of printing. Changes in
technology and equipment reserved.
© Copyright 2010 by Conrad Electronic SE.
Informations importantes Version 05/10
Hélicoptère EP « Red Hawk » 2,4 GHz RTF
N° de commande : 20 78 00
Chère cliente, cher client,
Dans le cadre de l'entretien de votre produit, un nouveau servo haut de gamme a été
intégré pour la commande du rotor de queue.
Attention : ce nouveau servo diffère des données du catalogue. Il ne s'agit
pas d'un servo numérique, mais d'un servo analogique.
Pour cette raison, vous devez utiliser le gyroscope exclusivement en mode
« analogique ».
Si le gyroscope est réglé sur « numérique », le servo sera détruit !
Nous vous prions de respecter cette consigne !
L'équipe REELY
Ce mode d'emploi est une publication de la société Conrad Electronic SE, Klaus-Conrad-Str. 1,
D-92240 Hirschau (www.conrad.com).
Tous droits réservés, y compris de traduction. Toute reproduction, quelle qu'elle soit (p. ex. photocopie,
microfilm, saisie dans des installations de traitement de données) nécessite une autorisation écrite de
l'éditeur. Il est interdit de le réimprimer, même par extraits.
Ce mode d'emploi correspond au niveau technique du moment de la mise sous presse. Sous réserve
de modifications techniques et de l'équipement.
© Copyright 2010 by Conrad Electronic SE.
Belangrijke informatie Versie 05/10
EP helikopter „Red Hawk“ RTF 2,4 GHz
Bestelnr. 20 78 00
Geachte klant,
Als gevolg van productonderhoud werd voor de aansturing van de staartrotor een
nieuwe, hoogwaardige servo ingebouwd.
Let erop dat deze nieuwe servo, anders dan de catalogusgegevens, geen
digitale, maar een analoge servo is.
Omwille van deze reden mag u de gyro enkel in de bedrijfsstand "analoog"
gebruiken.
Als de gyro op "digitaal" wordt ingesteld, dan wordt de servo vernietigd!
Gelieve dit in acht te nemen.
Het REELY-team.
Deze gebruiksaanwijzing is een publicatie van de firma Conrad Electronic SE, Klaus-Conrad-Str. 1,
D-92240 Hirschau (www.conrad.com).
Alle rechten, vertaling inbegrepen, voorbehouden. Reproducties van welke aard dan ook, bijvoorbeeld
fotokopie, microverfilming of de registratie in elektronische gegevensverwerkingsapparatuur, vereisen de schriftelijke toestemming van de uitgever. Nadruk, ook van uittreksels, verboden.
Deze gebruiksaanwijzing voldoet aan de technische stand bij het in druk bezorgen. Wijziging van
techniek en uitrusting voorbehouden.
© Copyright 2010 by Conrad Electronic SE.
EP Helicopter „Red Hawk“ RtF 2.4GHz
Item No.: 20 78 00
Operating Instructions
Version 08/09
1. Introduction .......................................................................................................................................................... 3
2. Intended use ........................................................................................................................................................ 4
3. Product description .............................................................................................................................................. 4
4. Delivery content ................................................................................................................................................... 5
5. Explanation of symbols ....................................................................................................................................... 5
6. Safety instructions ............................................................................................................................................... 6
7. Information on batteries and rechargeable batteries .......................................................................................... 8
8. Commissioning of the transmitter ...................................................................................................................... 10
9. Commissioning of the model helicopter ............................................................................................................ 10
10. Fine Tuning of the model helicopter .................................................................................................................. 24
11. Aerobatics with a model helicopter ................................................................................................................... 32
12. Care and maintenance ...................................................................................................................................... 33
13. Disposal .............................................................................................................................................................34
14. Troubleshooting ................................................................................................................................................. 35
15. Technical data.................................................................................................................................................... 36
16. Declaration of Conformity (DOC) ...................................................................................................................... 36
Table of contents
The table of contents and operating instructions for the remote control unit can be found at page 37.
a) General information....................................................................................................................................... 6
b) Before operation ............................................................................................................................................ 7
c) During operation ............................................................................................................................................ 7
a) Charging the helicopter battery ................................................................................................................... 10
b) Checking the pre-installed mechanisms ..................................................................................................... 11
c) Inserting the helicopter battery .................................................................................................................... 12
d) Checking the main rotor settings ................................................................................................................ 12
e) Checking the tail rotor ................................................................................................................................. 16
f) Balancing the helicopter .............................................................................................................................. 18
g) Basic information relevant to the control of model helicopters ................................................................... 19
h) Practical flight tips for the first start ............................................................................................................. 21
i) Trimming the helicopter ............................................................................................................................... 21
j) Modifying the steering directions ................................................................................................................ 23
k) Practical tips for the first hover flights ......................................................................................................... 23
a) Setting the alignment .................................................................................................................................. 24
b) Balancing the rotor blades .......................................................................................................................... 25
c) Setting the pitch values ............................................................................................................................... 26
d) Setting the piezo gyroscope........................................................................................................................ 29
a) General information..................................................................................................................................... 34
b) Batteries and rechargeable batteries .......................................................................................................... 34
Page
2
1. Introduction
Dear Customer,
Thank you for purchasing this product.
This product complies with all current national and European requirements.
In order to maintain this status, we kindly request you to observe the operating instructions and ensure safe operation!
These operating instructions are part of this product. They contain important information regarding
installation and operation. Please bear this in mind in case you pass it on the product to a third
party.
Therefore, keep these operating instructions for future reference!
We kindly request the user to follow the operating instructions, to preserve this condition and to ensure safe operation!
All company names and product names are trademarks of the respective owner. All rights reserved.
A spare parts list is available on our website at www.conrad.com in the download section of the respective
product. You can also order the spare parts list by phone.
In case of any technical inquiries, contact or consult:
Tel. no.: +49 9604 / 40 88 80
Fax. no.: +49 9604 / 40 88 48
E-mail: tkb@conrad.de
Mon. to Thur. 8.00am to 4.30pm, Fri. 8.00am to 2.00pm
3
2. Intended use
This product is an electrically driven model helicopter which is radio controlled via the remote control unit included in
the delivery. The model is designed for use in large indoor rooms or sports arenas and can also be used outdoors in
light winds. The model helicopter is pre-assembled and ready to fly and is delivered with built-in remote control and
drive components.
Observe all safety notes in these operating instructions. They contain important information regarding the
handling of the product.
The product may not become damp or wet.
The product is not a toy and should be kept out of reach of children under 14 years of age.
You are solely responsible for the safe operation of the model!
3. Product description
The ready-to-fly "Red Hawk" RC electric helicopter has a rotor head with symmetrical rotor blades controlled by two
servos via a 3-point 90° swash plate. The collective adjustment of the main rotor blade angle (angle of attack) is
carried out using a third servo, which lifts the pitch compensator via a rod in the main rotor shaft.
When combined with speed regulation, this makes it possible to let the model helicopter ascend or descend. Deliberately
inclining and rolling the swash plate causes a constantly repeating direction-dependent (cyclic) adjustment of the
blades which allows flying in a particular direction possible.
Due to the mechanical construction of the rotor head control, the remote control does not have to have a special
helicopter menu with a swash plate servo mix function.
Torque balancing around the vertical axis (main rotor shaft) is carried out by a tail rotor which is powered via a toothed
belt running from the main pinion. The stabilisation of the tail is carried out by a high quality AVCS gyro.
The radio remote control unit included in the delivery allows optimal adjustment and sensitive steering of the model.
8 Mignon batteries (e.g. Conrad Item-No. 652507, 4-pack, please order 2 packs) or rechargeable Mignon batteries are
required to operate the transmitter.
4
4. Delivery content
• Electric helicopter ready to fly
• Remote control transmitter
• LiPo flight battery with charger
• Allen key
• Adjustment screwdriver
• Operating instructions
5. Explanation of symbols
The symbol with the lightning bolt in the triangle indicates a risk of injury, e.g. through an electric shock.
The symbol with the exclamation mark points out particular dangers associated with handling, function or
operation.
The "arrow" symbol indicates special tips and operating information.
5
6. Safety instructions
In case of damage caused by not complying with these safety instructions the guarantee will
become void. We will not assume any responsibility for consequential damage!
Nor do we assume liability for damage to property or personal injury caused by improper use or
the failure to observe the safety instructions! In such cases the warranty/guarantee is voided.
Normal wear and tear during operation (e.g. worn-out cogs/pinions or servo drives) are excluded from the
guarantee and warrantee, the same is the case for accidental damage (e.g. broken bearing retainer or
rotor blades).
Dear customer, the following safety instructions are intended not only for the protection of the product, but
also for your own safety and the safety of others. Therefore read this chapter very carefully before putting
the product into operation!
a) General information
Caution, important note!
Operating the model may cause damage to property and/or individuals. Therefore, make sure that you are
properly insured when using the model, e.g. by taking out private liability insurance. If you already have
private liability insurance, enquire whether the operation of the model is covered before operating it.
Please note: In some countries you are required to have insurance for all model aircraft!
• The unauthorized conversion and/or modification of the product is prohibited for safety and approval reasons (CE).
• The product is not a toy and should be kept out of reach of children under 14 years of age.
• The product must not get damp or wet.
• If you do not have sufficient knowledge yet as how to deal with remote-controlled models, please seek the advice of
an experienced model sportsman or a model construction club.
• Do not leave packaging material unattended. It may become a dangerous toy for children.
• Should any questions arise that are not answered with the help of these operating instructions, contact our Technical
Advisory Service (for contact information see chapter 1) or another expert.
The operation and use of remote control model helicopters has to be trained! If you have never steered such a
model, start especially carefully and get used to the reactions of the model to the remote control commands first. Do
be patient!
6
b) Before operation
• Check the function safety of your model and of the remote control system. Take care to check for obvious damage
such as broken plug-in connections or damaged cables. All movable parts on the model have to be running smoothly;
however, there must be no tolerance in the bearings.
• Charge the helicopter battery, which is necessary for operation, as well as the rechargeable battery needed in the
remote control according the instructions indicated by the manufacturer.
• Prior to operating the model, observe the position of the switch for flight mode. This MUST be in the "NORMAL"
position. Also observe the detailed information in the remote control operating instructions.
• If batteries are used for the power supply to the transmitter, make sure that they have sufficient remaining capacity
(battery tester). If the batteries are empty, always replace the complete set, never individual cells only.
• Before each operation, control the settings of the trim sliders on the transmitter for different steering directions and,
if necessary, adjust them.
• Always switch the transmitter on first. Then you may connect the helicopter´s flight battery to the flight controller. This
is the only way the receiver can attune to the transmitter (binding function). Otherwise, the electric helicopter may
react in an unpredictable manner!
c) During operation
• Do not take any risks when operating the product! Your own safety and that of your surroundings depends on your
responsible handling of the model.
• Improper operation may cause serious damage to people and property! Therefore, during operation, ensure a sufficient
safety distance to persons, animals and objects.
• Fly your model only if your ability to respond is unrestricted. The influence of tiredness, alcohol or medication may
cause incorrect responses.
• The motor, flight controller and helicopter battery can heat up during operation. Therefore, take a break before recharging the helicopter battery or before flying with any spare helicopter battery you may have. The drive motor and
the flight controller in particular must be cooled down to room or ambient temperature.
• Always leave the remote control (transmitter) turned on, as long as the model is in operation. After landing, always
disconnect the flight battery from the flight controller first. It is only after this that the remote control may be turned off.
• Do not expose your model or the remote control for a longer period of time to direct sunlight or excessive heat.
7
6. Notes on batteries and rechargeable batteries
Despite the fact that handling batteries and rechargeable batteries in daily life nowadays is a matter of fact,
there are still numerous dangers and problems involved. In particular with LiPo/LiIon rechargeable batteries
with their high energy content (in comparison with conventional NiCd or NiMH rechargeable batteries)
various regulations must be imperatively observed as otherwise there is danger of explosion and fire.
Therefore, ensure that you observe the following information and safety measures when handling batteries
and rechargeable batteries.
• Batteries/rechargeable batteries must be kept out of the reach of children.
• Do not leave batteries/rechargeable batteries lying around in the open; there is a risk of their being swallowed by
children or pets. In such a case, consult a doctor immediately!
• Batteries/rechargeable batteries must never be short-circuited, taken apart or thrown into fire. There is a risk of
explosion!
• Leaking or damaged batteries/rechargeable batteries may cause acid burns when they come into contact with skin,
therefore use suitable protective gloves.
• Do not recharge normal batteries. There is a risk of fire and explosion! Only recharge suitable, rechargeable batteries
and use a suitable charging device. Batteries (1.5V) are meant to be used once only and must be disposed of when
empty.
• When inserting batteries/rechargeable batteries or when connecting a battery pack or a charger, observe the correct
polarity (note plus/+ and minus/-). Wrong polarity may damage the transmitter, the flight model and the rechargeable
batteries. There is also a risk of fire and explosion.
• Always exchange the entire set of batteries or rechargeable batteries. Do not mix full batteries/rechargeable batteries
with half-full ones. Always use batteries or rechargeable batteries of the same type and manufacturer.
• Never mix batteries and rechargeable batteries! Either use batteries or rechargeable batteries for the remote control
transmitter.
• If the device is not used for a longer period of time (e.g. storage), remove the inserted batteries (or rechargeable
batteries) from the remote control to avoid damage from leaking batteries/rechargeable batteries.
Caution!
After the flight, the LiPo helicopter battery must be disconnected from the helicopter. Do not leave the
helicopter battery connected to the helicopter if the latter is not used (e.g. during transport or storage).
Otherwise, the helicopter battery may deep-discharge and become destroyed/unusable!
• Recharge NiCd or NiMH rechargeable batteries about every 3 months, as otherwise there may be a deep discharge
due to self-discharge, which renders the rechargeable batteries useless.
• The enclosed charger may only be used for 2 or 3-cell LiPo rechargeable batteries with a suitable connection cable.
Never try to use it for charging different rechargeable batteries (NiCd or NiMH)! There is a risk of fire and explosion!
Caution!
The enclosed power pack unit is not suited for charging rechargeable batteries in the remote control
transmitter! Only use it for the charger supplied! If you connect it to the remote control unit you will destroy
them both, loss of guarantee/warranty!
• Never charge the enclosed helicopter battery immediately after use. Always leave the helicopter battery to cool
down until it has reached room or ambient temperature again.
8
• Charge intact and undamaged batteries only. If the external insulation of the rechargeable battery is damaged or if
the rechargeable battery is warped or bloated, it must not be charged under any circumstances!
Never damage the helicopter battery covering, do not tear the foil cover, do not cut/probe the rechargeable battery
with sharp objects.
There is a risk of fire and explosion!
• Remove the helicopter battery that is to be charged from the model and place it on a fire-proof support. Maintain a
safe distance from flammable objects.
• As the charger as well as the helicopter battery heat up during the charging procedure, it is necessary to ensure
sufficient ventilation. Never cover the charger or the helicopter battery! Of course, this also applies for all other
chargers and rechargeable batteries.
• Never charge rechargeable batteries unsupervised.
• Disconnect the helicopter battery from the charger when it is fully charged.
• The charger and the helicopter battery may not become damp or wet. The operation of the charger is only permitted
in dry indoor rooms.
There is a risk of fatal injury through electric shock; furthermore, there is danger of fire and explosion
through the rechargeable battery!
Do not expose the charger or helicopter battery to high/low temperatures or to direct solar radiation.
The remote control (transmitter) can be operated with rechargeable batteries instead of batteries.
However, the lower voltage (batteries=1.5 V, rechargeable batteries=1.2 V) and the lower capacity of
rechargeable batteries do lead to a decrease of the operating time. Normally this does not matter, since
the operating time of the transmitter is far beyond that of the helicopter.
If you use disposable batteries in the remote control, we recommend the use of high-quality alkaline
batteries.
When using rechargeable batteries there can be a decrease in range.
9
8. Commissioning of the transmitter
Before you put the model helicopter into operation you should become familiar with the remote control's
many features.
An exact description of the remote control transmitter and all its programming options is available to you in
the second part of these operating instructions as from page 37.
9. Commissioning of the model helicopter
To carry out service or adjustment work or to change the model battery, you need to take off the cabin
hood. To do this, lift the hood off the two support bolts on the left and the right (see fig. 3, pos. 3) and pull
off the hood forwards.
a) Charging the flight battery
A special LiPo charger is enclosed with the helicopter for
recharging the helicopter battery.
When charging, always remove the battery from the model
in order to prevent shape distortion of the plastic parts if
the components heat up.
Connect the enclosed power-pack unit (2) to the power
supply socket (1). The 3-cell helicopter battery (3) is
connected to the right charger socket (4). The two small
handles of the pin and socket connector (protected against
wrong polarity) must point upwards to ensure proper
connection.
You do not need the 2-pole cable with the high-current
plug (5) for the charge process. Later on, you connect the
helicopter battery to the model helicopter with this cable.
As soon as the power supply unit is plugged into a 230 V
mains outlet, the red control LED blinks or flashes (6).
Once the helicopter battery is fully charged, the charge
control LED colour changes to green and stays lit.
Once the helicopter battery is separated from the charger,
the charge control LED colour changes to red and stays
lit. Then unplug the plug-in power pack out from the mains
socket.
10
Figure 1
For photo-technical reasons, the charging cable of the plug-in power unit is illustrated in wound-up state.
Before the first use, the cable retainer should be opened and the cable unwound.
On the left charge socket (7), you can also connect a 2-cell LiPo rechargeable battery (e.g. a rechargeable drive
battery of another model) and charge it.
Caution!
Always connect one rechargeable battery only to the charging adapter. The simultaneous charging of two
rechargeable batteries is not admissible and may damage the charger.
During the charging procedure, place the LiPo battery on a fire-proof support or in an appropriate pottery
container.
Never charge the rechargeable battery unattended.
The plug-in power pack is to be used in dry indoor locations only. It may never not get damp or wet. Never
touch it when your hands are wet or damp. There is a risk of a fatal electric shock.
b) Checking the pre-installed mechanics
Before you operate the model for the first time, you need
to check all screw fittings on the model.
The attachment screws of the main and rear rotor blades
may only be tightened to such an extent that the rotor
blades can automatically align themselves in flight at an
exact 180° angle.
All moving parts have to be easily movable/rotatable but
there should not be clearance in the bearing.
Apply some oil on the moving the parts around the pitch
compensator (1), the swash plate (2) and on the tail rotor
shaft around the sliding sleeve (3).
Figure 2
11
c) Installation of the flight battery
The charged flight battery (1) is slid into the battery
compartment as shown in the illustration. At a later point
in time you can move the helicopter battery to set the exact
centre of gravity (see also "Balancing the helicopter").
Practical tip:
To ensure the rechargeable battery sits firmly in the
compartment and can still be changed quickly, it has
proven useful to use Velcro to attach it. To do so, glue the
fluffy part to the rechargeable battery and the other half
with the hooked side on the battery surface.
In addition the rechargeable battery is also secured with
a Velcro strap (2).
This ensures that the rechargeable battery does not slip
or fall out during flight.
Important!
In order to prevent the uncontrolled starting of the electric engine during maintenance and adjustment
work, simply disconnect two of the three plug connections (see fig, pos. 1) to the engine.
d) Checking the main rotor settings
Before you can make your first test flight with the helicopter
you will need to check or adjust the settings of the rotor
head.
Put the transmitter into operation and connect the
helicopter battery to the helicopter. After the binding
process the two swash plate servos (2) and the pitch servo
(3) immediately go into their basic position.
On the Piezo gyro (4), the LED (5) blinks slowly, then
rapidly and approx. 3 seconds afterwards, the tail servo
(6) also goes into the start position. The helicopter may
not be moved or turned during this time.
If you operate the gyro in normal mode, the LED (5) goes
out after initialisation. In AVCS mode it is then continuously
lit.
Figure 3
12
Figure 4
Right after connecting the battery, the speed adjuster also performs an internal adjustment and afterwards
transmits some short, high-frequency impulses to the engine. However, as long as not all engine connections
are connected with each other, the sound sequence emitted by the adjuster cannot be heard.
Now use the trim buttons to set the values for the nod, roll
and tail function exactly to the middle setting.
When you now move the control stick for the pitch function
back and forth, the pitch compensator (1) must slide up
and down on the main rotor shaft and in doing so change
the angle of attack of the rotor blades (see fig. 5 A).
If you push the control stick forward, the angle of attack
must be increased so that the helicopter can take off.
The maximum angle of attack of the rotor blades should
be -12° and +12° if the remote control is switched to the
flight mode for acrobatic flight. If this is not the case check
the programming on the remote control transmitter.
You can best measure the angle of attack
using an optionally available pitch setting
gauge (see fig. 20, pos. 1).
Then check the direction of movement of the swash plate.
If you move the control stick for the nod function forwards
and backwards, the swash plate (2) must also first tilt first
forwards and then backwards (see fig. 5 B).
If you move the control stick for the roll function right and
then left, the swash plate must first tilt right and then left
as well (see fig. 5 C).
Figure 5
13
If both control sticks are in the middle setting, the swash
plate must sit at an exact 90° angle to the rotor shaft (see
dashed lines).
The servo lever on the nod servo (3) must be vertical and
the servo lever of the roll servo (4) should be horizontal. If
the levers do not sit in exactly the correct position, you
can correct this with the basic trimming and/or the subtrimming.
If the swash plate still sits on a slight angle despite correct
setting of the servo lever, this can be corrected by adjusting
the length of the linkage rods (5). To do so, remove the
linkage's ball end eyelets carefully off the ball with a ball
end spanner. By twisting, you adjust the length of the rods
to the required measure and afterwards reattach the ball
end eyelet.
14
Important!
Figure 6
Always remove the helicopter battery before you carry out settings on the model mechanics.
Next the paddles (1) of the auxiliary rotor are to be checked.
Not only must the paddles have the same distance (A) to
the control sticks (2), but they must also be absolutely
parallel to each other. To check that the paddles are
positioned correctly towards each other, look at the rotor
head from the side from a distance (see fig 7, lower small
figure).
It is also important that the two linkage levers (2) are at
the same height as the paddle lever. The levers should
not point slightly upwards or downwards.
After loosening the grub screws on the paddles or linkage
levers you can make the necessary fine adjustments.
Figure 7
15
e) Checking the tail rotor
Basic settings of the tail rotor linkage
Important!
Before you check the linkage of the tail rotor, it is necessary to switch the gyro to the normal mode or to set
the gyro sensitivity to "0". Only then does the tail servo run in the basic setting and stays in this position if
the helicopter is not moved.
Put the transmitter into operation and connect the
helicopter battery to the helicopter. After the binding
process the gyro carries out an initialisation. Immediately
thereafter the tail servo runs in the basic setting. The LED
on the gyro (see fig. 4, pos. 5) should not be lit (normal
mode).
Check the positioning of the tail rotor linkage lever. The
rear axle (1) must sit at a 90° angle to the rotor shaft (2).
The lever of the tail servo (3) and the linkage rod (4) must
also form a 90° angle.
When moving the tail rotor control stick, the sliding sleeve
(5) should move as far from left to right as possible, without
reaching the mechanical end points in either direction.
Important!
Along with the settings options on the
transmitter the servo travel of the tail servo can
be limited using a settings control on the gyro.
For this reason we recommend that you set
the gyro limitation to "0" and programme the
required servo travel on the transmitter.
Checking the toothed belt
First check the correct fitting of the toothed belt (1).
The toothed belt is driven with a belt pulley (2) on the
main pinion.
If you turn the main rotor clockwise (as seen from above),
the upper tail rotor blade (as seen in flight direction) must
turn to the back and the lower tail rotor blade must turn to
the front.
For a better illustration, the twisting of the toothed belt is
shown schematically in figure 9.
16
Figure 8
2
1
Figure 9
In order for the toothed belt to run smoothly through the
tail section pipe, it is guided over two support rollers at the
pipe entrance (fig. 10 A).
To test the toothed belt tension, gently and carefully press
the belt inwards using a small screwdriver between the
support roller and the belt pulley.
If the belt is able to be pushed to the middle line then the
tension is correct (fig. 10 B).
If the belt can be pushed nearly to the other side of the
belt then the tension is too slight (fig. 10 C).
If the belt cannot be pushed to the middle line then the
tension is too high (fig. 10 D).
In order to set the belt tension correctly, loosen the two
tail pipe section attachment screws (1) and the fastening
screw for the gyro plate (2).
Once you have also loosened the two screws on the
elevator unit, you can now either push the tail pipe further
into the chassis or pull it out a little.
Once the belt tension is perfected, tighten the screws
again.
A
B
C
D
Figure 10
Figure 11
17
f) Balancing the helicopter
Before you can take your first test flight with the helicopter you need to check the correct positioning of the centre of
gravity. Insert the helicopter battery and mount the cabin hood to do so. Then place the model on a level surface.
Position the two main rotor blades at an exact 180° angle
to one another and set them in such a way that they sit
exactly along the lengthwise axis of the model.
Lift up the model as shown in the adjacent figure with two
fingers on the paddle rod (1).
If the centre of gravity is correct, the model will not tilt
forwards or backwards. If the tail pipe (2) sits on an angle
to the level surface you can move the helicopter battery to
set the correct centre of gravity.
After completing the adjustments, reconnect the engine
to the speed control. Now your model is ready for its first
test flight.
Important note!
Before starting to fly your model helicopter, you should take note of the following information first.
Figure 12
18
g) Basic information concerning the control of model helicopters
Before operating your model, you should know the available control possibilities first in order to be able to safely
control the model. The model helicopter is controlled via the two control sticks on the remote control transmitter. The
following functions are available:
In the example provided (see fig. 13 A, B, C, D on the next page) the remote control is operated in mode
II (see remote control operating instructions).
Pitch function (fig. 13 A)
The flight height of a helicopter is affected by the pitch function. The control of this function is carried out with the left
control stick. To that effect, the control stick can be moved forward and backward. Unlike with other control functions,
the stick does not keep springing back to the centre position.
Pulling the control stick fully towards you switches off the engine and the rotors stop. If you push the control stick slowly
away from you, the two rotors will start up and their speed will increase in line with the stick position. When the control
stick reaches the centre position, the helicopter should hover (see fig. 13, pos. A).
The altitude can be regulated either by changing the speed of the main rotor or by collective adjustment of the blades.
To do so, the pitch compensator is lifted with the aid of the pitch servo (the helicopter climbs) or lowered (the helicopter
descends).
Tail function (fig. 13 B)
As the main rotor of the helicopter rotates clockwise (as seen from above), the reactive torque makes the helicopter
turn its nose to the left and the tail to the right. To avoid this, the helicopter has a tail rotor. Depending on the speed and
the angle of attack, this pushes the tail anticlockwise to a greater or lesser extent so as to equalize the reactive torque.
This pitch/tail mix (revolution mix) takes place in the transmitter and can be adjusted separately. In addition, the Piezo
gyro ensures that the tail does not rotate in an undesired way, e.g. caused by sudden wind from the side.
The control of the tail function is carried out with the left control stick. If the stick is moved slightly to the left, the nose
will turn left (as seen from above or behind). If you steer to the right, the tip of the fuselage turns likewise towards the
right (see fig. 13, pos. B).
Roll function (fig. 13 C)
With the roll function you can move the helicopter sideways to the right or left (as seen from behind). The control of this
function is carried out with the right control stick. If the stick is moved slightly to the left, the swash plate will be tilted to
the left with the aid of the roll servo, and the model will drift sideways to the left. If you steer to the right, the model drifts
sideways to the right (see fig. 13, pos. C).
Nod function (fig. 13 D)
With the help of the nod function you can move the model helicopter forward and backward. The control of this function
is also carried out with the right control stick. If the stick is moved forward slightly, the swash plate will be tilted forward
with the aid of the nod servo and the model will fly forward. If you pull the stick backwards, the model flies backwards
(see fig. 13, pos. D).
19
20
Figure 13 A, B, C, D
h) Practical flight tips for the first start
• For your first flight attempts, we recommend picking a free space of approx. 5 x 5 m.
• The ground should be flat (concrete, tiles, parquet flooring, or similar) to allow you to determine already before the
take off if the model tends to drift off in a particular direction.
• Place yourself exactly behind your helicopter. As long as you can see your model from behind, the latter will react to
the control commands: right, left, forward, backward exactly as you see it. Whereas, if the cockpit of the model points
towards you, it reacts exactly the opposite way from your steering commands at the transmitter.
i) Trimming the helicopter
First activate the transmitter and then connect the charged helicopter battery to the controller.
Push the pitch stick from the bottom position (engine off) carefully forward and observe the response of your model.
Shortly before the helicopter starts hovering, you can already determine in which direction your model wants to move.
If the helicopter wants to turn to the right with the nose of the fuselage, then reduce the speed and push the steering
trim button for the tail function gradually to the left. Then push the pitch stick carefully forward again and check if the
adjustment was sufficient. Keep repeating this procedure until the helicopter no longer has any tendency to turn to the
right. If the nose of the fuselage turns to the left, carry out a right trim adjustment to the right.
Figure 14
21
If the helicopter is trying to drift or tilt sideways to the right, reduce the speed and gradually move the roll function trim
button little by little to the left. Push the pitch stick carefully forward again and check if the adjustment was sufficient.
Repeat the procedure until the model does not show any tendency to drift to the right. If the helicopter wants to drift
sideways to the left, carry out a trim adjustment to the right.
Figure 15
If the helicopter is trying to drift forwards, reduce the speed and gradually move the nod function trim slider backwards.
Then push the pitch stick carefully forward again and check if the adjustment was sufficient. Repeat the procedure
until the model does not show any tendency to drift forward. If the helicopter wants to drift backward, carry out a trim
adjustment forward.
Figure 16
The model will always tend to fly into one direction. As long as this tendency is minimal or the directions are
always different, then the trimming process can be ended.
If your model doesn't show a large tendency to drift in a certain direction in hovering flight, then change the respective
linkage rod so that the model hovers stable as before but that the trim function returns to the middle setting. The fine
tuning can then be carried out using the basic (sub) trimming.
22
j) Modifying the steering directions
If your model does not react as per the previously described steering/control directions, or you wish to assign the sticks
differently on your transmitter, you can use the mode setting on the transmitter to set any desired control combination.
Further information in this respect can be found in the enclosed operating instructions for the remote control.
k) Practical tips for the first hover flights
Your model helicopter in now ready for the first test flights and you can start training. However, even during flight
training, you should definitely keep in mind some basic things.
• For hover flight training, the tail of the helicopter must always point in your direction.
• To start, lift the helicopter approx. 20 – 30 cm from the ground, in order to be able to have it touch down quickly in
case of an emergency landing.
• In case of an emergency landing, do not retract the pitch stick too quickly, as the helicopter will touch down very hard.
• If the rotors are blocked by an obstacle, then pull the pitch stick immediately to the lowest position in order to switch
off the engine.
• At the start location, draw a marking on the ground and try maintaining the helicopter in a hover directly above the
marking.
Caution!
If you notice after a few minutes that the engine performance of your electronic helicopter declines, cease
operation immediately. Then leave the helicopter battery to cool down before charging it. Avoid, in any
case, a total discharge of the helicopter battery!
• If after a few flights you develop a keen feel for flying your helicopter, you can carry out further optimizations.
23
10. Fine tuning the model helicopter
a) Setting the track alignment
To ensure that the helicopter steers and flies with exactness, the two rotor blades need to be running at the same
height within the rotor rotation plane. One rotor blade is marked with a red and the other with a white marking at the tip
to allow you to check and also adjust this alignment. If you now watch the helicopter in hovering flight and then look
exactly at the rotor plane from the side, you will immediately see whether the blades are running at different levels (fig.
17 A) or whether they are running in a clean line (fig 17 B).
A
B
Figure 17
Caution!
Do not do anything further to the rotor head until you have disconnected the helicopter battery from the
flight controller to prevent unwanted starting.
Besides the paddle rod (1) the rotor blades are also
controlled via rods from the pitch compensator (3) whose
rods can be adjusted in length (2). With the correct paddle setting, these run absolutely exactly in line in hover flight
and thus stabilize the rotor circle plane. If now, for example,
the rotor blade with the red marking happens to be running
too high, the linkage rod to this rotor blade will need to be
shortened.
This reduces the angle of attack of the rotor blade with
the red marking and due to the lower lift it will then no
longer run as high as before.
To do this, carefully unhitch the lower ball head eyelet (4)
from the linkage with a ball end spanner and turn the eyelet
one turn further along the linkage.
Reattach the eyelet and make sure the linkage is seated correctly. Start the helicopter again and check to see whether
your correction has already been enough to solve the problem. Another way is to lengthen the linkage of the blade
which is running too low so that it will generate more lift and thus run higher.
Figure 18
24
b) Balancing the rotor blades
Smooth and virtually vibration-free running of mechanical
components will not be possible unless the main rotor
blades (1) and the tail rotor (2) have been balanced. To
do this, you can use standard rotor blade scales, propeller
balancers (3) or even a home-made jig of your own (4).
What is important here is that the rotor blades are precisely
aligned to each other along a straight line (5) and can
pivot in either direction with the very minimum frictional
resistance.
Then stick small adhesive film strips around the nose of
the lighter rotor blade until the weight of the two rotor
blades is balanced.
To better illustrate this, the figures have white
rotor blades as opposed to the original rotor
blades.
25
c) Setting the pitch values
The setting of the rotor head mechanism and the setting
of the remote control should be selected to allow a
maximum rotor blade angle of attack from –12° to +12° in
extreme cases (see fig 20, sketch).
The setting and checking of the pitch values for the different flight modes is carried out using an optionally available
settings gauge.
Hovering flight and/or simple flights only require small pitch
values as they allow sensitive helicopter flight control.
Acrobatic flight requires the pitch values to be larger and
for auto-rotation you should set a maximum possible pitch
value of +/- 12°.
Figure 20
The following combinations have proven to be the ideal starting point for setting your personal values for different flight
modes:
Hovering flight and simple flights (fig. 21 A)
Pos. Stick position % Motor output % Pitch value
(Stick) (Power)
1 0 0 -3°
225 40 1°
3 50 70 5° to 6°
475 85 7°
5 100 100 8° to 9°
26
100
75
50
Power
25
0
25
50
Stick %
75
A
100
12°
6°
0
Pitch
-6°
-12°
A
50
25
0
Stick %
75
100
Figure 21 A
Simple acrobatic flight (fig. 21 B)
Pos. Stick position % Motor output % Pitch value
(Stick) (Power)
1 0 90 -5°
225 85 0°
3 50 80 5 to 6°
4 75 85 7 to 8°
5 100 100 9 to 12°
100
75
50
Power
25
B
0
Extreme 3D acrobatic flight (fig. 21 C)
Pos. Stick position % Motor output % Pitch value
1 0 100 -9 to -12°
2 25 90 -4°
350 80 0°
475 90 6°
5 100 100 9 to 12°
100
75
50
25
(Stick) (Power)
Stick %
75
100
12°
6°
0
Pitch
-6°
-12°
12°
6°
25
0
50
Stick %
75
B
100
Figure 21 B
50
Power
25
0
25
50
Stick %
75
C
100
0
Pitch
-6°
-12°
C
50
25
0
Stick %
75
100
Figure 21 C
27
Caution!
In the setting for hovering flight to simple acrobatic flight the model should hover when the pitch control
stick is in the middle setting.
However as soon and you switch to 3D flight in hovering flight, the helicopter will lose altitude rapidly as the
rotor blade angle of attack is only 0°.
For this reason we recommend that before you move on to 3D flight, you should change the pitch curve in hovering
flight or simple flight such that an approximate 70% stick deflection is required for hovering flight. This way you can
switch to 3D flight mode while hovering without a rapid change in altitude.
Important!
Never move the flight mode switch when the helicopter is on the ground with the rotors stopped as the
rotors may rapidly start. Always let the rotors start rotating in normal flight mode before you switch mode.
28
d) Setting the piezo gyroscope
The Piezo gyroscope or gyro's task is to ensure that the tail of the model always points in the right direction and is not
pushed to the side due to air swirls or gusts of wind. The gyro is placed between the receiver and the tail servo (see
sketch at fig. 22). It contains a Piezo element which allows it to recognize the rotation of the helicopter fuselage along
the vertical axis (rotor shaft). An integrated analysis electronics system then creates a reactive control impulse for the
tail servo.
The gyro directly transmits directional changes initiated by the pilot to the tail servo.
The gyro has various switches and controllers for adjustment, which are factory preset. However, you can adapt these
settings to your special wishes.
Operating and display elements of the Piezo gyro:
1 LED display
2 Delay regulator
3 Controller for the servo path limitation
4 Switch for changing the servo direction
5 Switch digital/standard servos
6 Gyroscope housing
7 Receiver connection for the gyroscope sensitivity
8 Receiver connection for the tail servo
9 Connector plug for the tail servo
10 Servo plug
11 Tail servo
Description of the controls and display elements:
1. LED display
The LED display (see fig. 22, pos.1) serves to display the different gyro modes:
LED flashes rapidly: Initialisation and matching (performed right after activation).
LED blinks slowly: Missing servo signal from the receiver.
LED is off during operation: Gyro is working in normal mode.
LED is lit during operation: Gyro is working in AVCS mode.
LED always blinks twice: The current neutral setting of the servo deviates from the saved neutral setting.
Figure 22
29
2. Delay regulator
The gyro is able to emit rapid correction control signals to the connected servo. With slow analogue servos, it may
happen that the gyro controls faster than the servo can execute the control commands. In this case, increase the
signal delay. To do so, adjust the regulator (see fig. 22, pos. 2) step by step to the right using an adjustment screwdriver.
When using a digital servo, the delay must be set to "0".
As a digital servo was installed for the tail function in the factory, you should also set the delay to "0" with
this servo.
3. Controller for the servo path limitation
With this controller (see fig. 22, pos. 3), you can adjust the maximum admissible path of the tail servo. To do so, slide
the control stick for the tail function all the way to the side. Now you can increase or decrease the adjustment path of
the servo with the controller. Adjust the longest possible servo path without reaching the point where the servo travel
is mechanically limited (mechanical end-point).
4. Switch for changing the servo direction
With this switch (see fig. 22, pos. 4), you can switch the running direction of the tail servo with an automatic correction
controlled by the gyro. This enables the adjustment of the gyro function to the most varied tail rotor mechanics.
If the switch is in the wrong position, the gyro would not perform a correction to the right but to the left when the
helicopter turns to the left.
5. Switch digital/standard servos
With this switch (see fig. 22, pos. 5), you can indicate, which type of servo you are applying for the tail function to the
gyro. With analogue servos, the switch must be set to "Nor", with digital servos to "DS".
Caution!
Do not put the switch to "DS" when using an analogue servo, as the analogue servo will be destroyed by
the fast servo impulses.
In addition to the adjustment options, which you can perform directly on the gyro, there is also the possibility to adjust
the responsiveness of the gyro on the transmitter. The higher the responsiveness, the stronger the tail servo reacts,
e.g. when the tail is pushed to the side by a gust of wind. Further information in this respect can be found in the
operating instructions for the remote control.
For hovering flight, you should set a sensitivity of 70 to 80% and for acrobatic flight from 60 to 70%.
Please note that the % values given are for the gyro sensitivity and not the transmitter settings values!
When setting the gyro sensitivity on the transmitter (WK 2801) the 0% value corresponds to the maximum
sensitivity of the gyro (100%) in normal mode. The transmitter setting value of 50% corresponds to a
minimum gyro sensitivity (0%) and the transmitter setting of 100% corresponds to a maximum level of
sensitivity (100%) in AVCS mode.
30
If the value is too low, the tail is not properly stabilised in flight. The counter-steering commands are too weak and the
tail is easily pushed to the side by external influences.
If the value is too high, the tail starts rocking repeatedly backwards and forwards.
If you operate the gyro in normal mode, you should set the tail mixer to approx. 40%. Tail mixing is not
required in AVCS mode, because the gyro takes care of the complete tail stabilisation.
Practical tip:
You can check the setting of the gyro and the mixing function in flight by letting the helicopter rise rapidly for a short
period of time from hover flight with maximum deflection of the control stick for the pitch function.
If the tail turns to the side in this process, the gyro sensitivity is too low or the tail mixer maladjusted.
If the tail always points into the exact same direction while rising, the setting is perfect.
If the tail starts to rock during rising, the gyro sensitivity is too high.
31
11. Acrobatic flight with a model helicopter
Acrobatic flight with a remote-controlled model helicopter is one of the most difficult skills to master with model aircraft.
Before you venture to tackle aerobatics such as rolls, loops or inverted flight, you must be able to get your
helicopter out of any flying position and into a normal flying position almost without needing to think about
it.
If you cannot yet do this, every attempt at aerobatics will sooner or later end in an inevitable crash.
So-called model flight simulators provide a good training. With these, you can try out the control reactions of the model
in the most varied flight positions on the computer without causing any damage.
Inverted flight in practice
Once the helicopter battery has been freshly recharged, take your helicopter up to a minimum flying altitude. This
should be high enough for you to easily regain control over the helicopter should a problem occur. It should not be too
high as this would make it hard to see how the helicopter is flying.
Now switch the flight mode switch to the aerobatics setting and first test how your helicopter flies in the normal flying
position.
The model will react considerably more sensitively due to the high motor speed and higher rotor head speed required
in this flying mode. Once you have got used to the different flying characteristics, you can execute a half roll or a half
loop to bring the helicopter into the inverted flying position. If you now, with a lot of sensitivity, pull back the pitch
function control stick the helicopter can be held hovering upside down.
Caution!
Even when the helicopter nose is pointing towards you, the tilt and pitch functions will react in the opposite
direction to normal. Depending on the current flying position of the helicopter the model will now react to
the corresponding control commands from the transmitter.
It is these constantly changing reaction directions which make aerobatics with a model helicopter so difficult
but also so fascinating.
32
12. Care and maintenance
Clean the exterior of the model and the remote control only with a soft, dry cloth or brush. Never use aggressive
cleansing agents or chemical solutions, because they might damage the surface of the housing.
Check the mechanical parts of the model throughout at
regular intervals. All screwed connections should be tight
and should not loosen up due to vibrations of the helicopter.
In particular you should make sure that the attachment
screws in the pitch rod (1) main pinion (2) of the rotor shaft
setting ring (3) are tight.
All moving parts have to be easily movable but there should
not be a clearance in the bearing.
Apply some drops of high-quality machine oil in the general
area of the pitch compensators and the sliding sleeve on
the rotor shafts (see fig. 2) at regular intervals.
Check the tension of the toothed belt and the condition of
the main pinion at regular intervals.
Adjusting the tooth profile clearance
• Loosen the two screws holding the electric motor.
• Now place a strip of paper (4) between the motor pinion
(6) and main pinion (5).
• Now turn the main pinion by hand so that the paper
strip is drawn between the two cogs and comes just out
the other side of the motor pinion.
• Press the motor against the main pinion by hand and
screw it into position.
• Remove the paper strip, check the easy play of the
mechanics.
When replacing mechanical parts use only original spares
available from the manufacturer.
A spare parts list is available on our website at
www.conrad.com in the download section of the product.
You can also order the replacement parts list by phone.
Figure 23
33
13. Disposal
a) General information
Please dispose of the device, when it is no longer of use, according to the current statutory requirements.
b) Batteries and rechargeable batteries
You as end user are under legal obligation (Battery Regulation) to take back all used batteries and rechargeable
batteries. Disposing of them in the domestic waste is not permitted!
Batteries/rechargeable batteries containing harmful substances are marked with the following symbols,
which point out that disposal in the domestic waste is prohibited. The designations for the relevant heavy
metals are: Cd=cadmium, Hg=mercury, Pb=lead (name on battery/rechargeable battery, e.g. under the
trash icons on the left).
You can return used batteries/rechargeable batteries free of charge to any collecting point in your local
community, in our stores or in any other store where batteries/rechargeable batteries are sold.
You thus fulfil your statutory obligations and contribute to the protection of the environment.
34
14. Troubleshooting
Even though the model and the remote control system were built to the latest available technology, there can still be
malfunctions or faults. This is why we would like to show you how to remove some possible faults.
Problem
Transmitter doesn’t respond
The transmitter turns off straight away
of after a short while.
The system has only a low range
The model doesn’t respond
The engine does not start.
The engine runs in the wrong direction.
Helicopter does not lift off the ground.
Helicopter shakes in flight.
Tail responds incorrectly.
Remedy
• Check batteries or rechargeable batteries in transmitter.
• Check polarity of batteries or rechargeable batteries.
• Check the on/off function button.
• Check batteries or rechargeable batteries of transmitter or replace them.
• Check batteries or rechargeable batteries in both transmitter and model.
• Carry out a reception test with reduced transmitter power.
• Check whether the range test on the transmitter has been activated.
• Check battery in model.
• Check plug connectors and rechargeable battery cable.
• Check cabling.
• Repeat binding function.
• Delete the ID code in the receiver and repeat the binding function.
• Check plug connection to the controller.
• Check controller.
• Check mechanics and transmission.
• Slide the control stick for the pitch function to the bottom position (engine off) and
additionally slide the trim for the pitch function into the bottom position. Then connect
the rechargeable battery and check the function of the helicopter.
• Swap two of the three engine connections with each other.
• Check battery in model.
• Check pitch settings.
• Check throttle curve on the transmitter.
• Check mechanics are running freely.
• Check the functioning of the mechanics.
• Rotor blades too tight or too loose.
• Rotor blades have not been balanced.
• Rotor shafts or bearing shaft bent due to previous ground contact.
• Head rotation speed too low.
• Paddle not mounted symmetrically or unbalanced.
• Rotor blades defect.
• Repeat the binding function so the gyro can perform another internal balancing
procedure.
• Check gyro sensitivity on the transmitter.
• Check tail servo and tail linkage.
• Check tail rotor mechanism and toothed belts.
35
15. Technical data
Transmitter:
Frequency range ................................. 2.4 GHz (Spread Spectrum)
Channel number .................................. 8
Power supply ....................................... 9.6 – 12 V/DC (8 mignon batteries/rechargeable batteries)
Dimensions (W x H x D) ...................... 190 x 248 x 100 mm
Weight approx. .................................... 910 g
Helicopter:
Power supply LiPo rechargeable battery ..... 11.1 V/1500 mAh
Diameter of rotor .......................................... 622 mm
Tail rotor diameter......................................... 135 mm
Length of fuselage ........................................ 590 mm
Weight........................................................... 628 g
Servos:
NS-05 (at 4.8 V) .................................. 0.12 s/60°; 11 Ncm; 9.1 g; 22.5 x 11.8 x 27 mm
WK 2001 (at 4.8 V) .............................. 0.16 s/60°; 60 Ncm; 18.7 g; 28.5 x 13.5 x 29.6 mm
WK 0902 H (at 4.8 V) .......................... 0.08 s/60°; 20 Ncm: 8.2 g; 22.4 x 11.9 x 26.5 mm
Flight controller:
Input voltage ........................................ 11.1 V
Max. current ......................................... 30 A
16. Declaration of Conformity (DOC)
The manufacturer hereby declares that this product complies with the essential requirements and regulations of guideline
1999/5/EC.
The declaration of conformity of this product can be found at www.conrad.com.
36
1. Introduction ........................................................................................................................................................ 40
2. Intended use ......................................................................................................................................................41
3. Product description ............................................................................................................................................41
4. Delivery content ................................................................................................................................................. 42
5. Explanation of symbols ..................................................................................................................................... 42
6. Safety instructions ............................................................................................................................................. 43
7. Information on batteries and rechargeable batteries ........................................................................................ 45
8. Charging the batteries ....................................................................................................................................... 45
9. Transmitter controls ........................................................................................................................................... 46
10. Initial operation of the transmitter...................................................................................................................... 48
11. Initial Operation of the receiver ......................................................................................................................... 53
12. Programming the remote control transmitter .................................................................................................... 57
Table of contents
The table of contents and operating instructions for the helicopter can be found at page 2.
a) General information..................................................................................................................................... 43
b) Operation..................................................................................................................................................... 44
a) Inserting the batteries/rechargeable batteries ............................................................................................ 48
b) Charging the rechargeable batteries for transmitter ................................................................................... 49
c) Switching on the transmitter ........................................................................................................................ 49
d) Conversion of the throttle stick function ...................................................................................................... 51
e) Setting the control stick length .................................................................................................................... 52
a) Connecting the receiver .............................................................................................................................. 53
b) LED display ................................................................................................................................................. 54
c) Installing the receiver .................................................................................................................................. 54
d) Installing the servos .................................................................................................................................... 55
e) Switching on the receiver unit and checking the servo functions ...............................................................56
Page
37
Page
13. The functions settings menu for model helicopters .......................................................................................... 58
13.1. "MDSET" function (model settings) ................................................................................................................. 60
a) "REVERS" (reversing the servo direction) .................................................................................................. 60
b) "SUBTRIM" (basic trimming)....................................................................................................................... 61
c) "TRAVADJ" (servo travel setting) ................................................................................................................ 62
d) "SWAATS" (swash plate/ATS mixer) .......................................................................................................... 63
e) "GYRHLD" (gyro sensitivity setting/throttle hold)........................................................................................ 66
f) "DR&EXP" (dual rate and exponential setting) .......................................................................................... 70
g) "CURVES" (throttle and pitch curve setting)............................................................................................... 73
h) "PROGMIX" (programmable mixer) ............................................................................................................77
i) "FAILSAF" (failsafe setting)......................................................................................................................... 80
j) "MONITOR" (servo function display) .......................................................................................................... 81
13.2. "MDSEL" function (model selection) ................................................................................................................ 82
a) "MODEL" (select a model memory) ............................................................................................................82
b) "NAME" (model name setting) .................................................................................................................... 83
c) "TYPE" (model type setting) ....................................................................................................................... 84
13.3. "COPY" function (copy function) ...................................................................................................................... 85
a) "MODEL" (copy model data within the system) ..........................................................................................85
b) "RECEIVE" (receive model data from a second remote control unit) ........................................................ 86
c) "TRANSMIT" (transmit model data to a second remote control unit) ........................................................ 87
d) "TRAINER" (trainer/student operation) ....................................................................................................... 88
13.4. "STICK" function (transmitter stick settings, transmitter identification) ........................................................... 90
13.5. "INPUT" function (control signaller allocation for unassigned channels) ........................................................ 95
13.6. "SWASH" function (swash plate settings)........................................................................................................ 96
13.7. "STEP" function (trim setting) .......................................................................................................................... 97
13.8. "DISP" function (display settings, range test) .................................................................................................. 98
13.9. "ALARM" function (alarm settings) .................................................................................................................. 99
13.10. "RESET" function (reset transmitter to factory settings) .............................................................................. 100
38
Page
14. The functions settings menu for model planes ............................................................................................... 101
14.1. "MDSET" function (model settings) ............................................................................................................... 103
a) "REVERS" (reversing the servo direction) ................................................................................................ 103
b) "SUBTRIM" (basic trimming)..................................................................................................................... 104
c) "TRAVADJ" (servo travel setting) .............................................................................................................. 105
d) "DR&EXP" (dual rate and exponential setting) ........................................................................................ 106
e) "ELEAIL/ELEMIX" (elevator flap mixer/aileron rudder mixer) .................................................................. 108
f) "DIFFREN/AILMIX" (aileron differentiation/aileron rudder mixer) ............................................................ 113
g) "LANDING/FLAPSYS" (landing setting/flap setting)) ............................................................................... 115
h) "PROGMIX" (programmable mixer) .......................................................................................................... 119
i) "FAILSAF" (failsafe setting) ....................................................................................................................... 122
j) "MONITOR" (servo function display) ........................................................................................................ 123
14.2. "MDSEL" function (model selection) .............................................................................................................. 124
a) "MODEL" (select a model memory) ..........................................................................................................124
b) "NAME" (model name setting) .................................................................................................................. 125
c) "TYPE" (model type setting) ..................................................................................................................... 126
14.3. "COPY" function (copy function) .................................................................................................................... 127
a) "MODEL" (copy model data within the system) ........................................................................................127
b) "RECEIVE" (receive model data from a second remote control unit) ...................................................... 128
c) "TRANSMIT" (transmit model data to a second remote control unit) ...................................................... 129
d) "TRAINER" (trainer/student operation) ..................................................................................................... 130
14.4. "STICK" function (transmitter stick settings, transmitter identification) ......................................................... 132
14.5. "INPUT" function (control signaller allocation for unassigned channels) ...................................................... 137
14.6. "WING" function (wing/tail unit control) ..........................................................................................................138
14.7. "STEP" function (trim setting) ........................................................................................................................ 140
14.8. "DISP" function (display settings, range test) ................................................................................................ 141
14.9. "ALARM" function (alarm settings) ................................................................................................................ 142
14.10. "RESET" function (reset transmitter to factory settings) .............................................................................. 143
15. Remote control operation ................................................................................................................................ 144
16. Care and maintenance .................................................................................................................................... 144
17. Disposal ...........................................................................................................................................................145
a) General information................................................................................................................................... 145
b) Batteries and rechargeable batteries ........................................................................................................ 145
18. Troubleshooting ............................................................................................................................................... 146
19. Technical data.................................................................................................................................................. 147
20. Declaration of Conformity (DOC) .................................................................................................................... 147
39
1. Introduction
Dear Customer,
Thank you for purchasing this product.
This product meets the requirements of current statutory, European and national guidelines.
We kindly request the user to follow the operating instructions, to preserve this condition and to ensure safe operation!
These operating instructions are part of this product. They contain important information concerning
operation and handling. Please bear this in mind in case you pass on the product to a third party.
Therefore, keep these operating instructions for future reference!
All company names and product names are trademarks of the respective owner. All rights reserved.
A spare parts list is available on our website at www.conrad.com in the download section of the product.
You can also order the replacement parts list by phone.
In case of any technical inquiries, contact or consult:
Tel. no.: +49 9604 / 40 88 80
Fax. no.: +49 9604 / 40 88 48
E-mail: tkb@conrad.de
Mon. to Thur. 8.00am to 4.30pm, Fri. 8.00am to 2.00pm
40
2. Intended use
The remote control is solely designed for private use in the field of model vehicle construction and operation and the
operating times associated with it. This system is not suitable for industrial use, such as controlling machines or
equipment.
Any use other than the one described above damages the product. Moreover, this involves dangers such as shortcircuit, fire, electric shock, etc.
The remote control system must not be changed technically or modified!
Take note of all the safety notes in these operating instructions. They contain important information regarding
the handling of the product.
You are solely responsible for the safe operation of the model and the remote control!
3. Product description
The "WK 2801" remote control system is a radio control system that is ideal for controlling model planes or model
helicopters.
The proportional control channels allow steering and control functions to be independently remotely operated. In
addition the system has different mix and memory functions which are required for various models. The settings
values of up to 8 different models can be saved in the remote control unit. Even with the transmitter battery removed
the data remains reliably saved.
In addition the remote control unit offers the option of loading different flight modes and thus set individual rudder
deflections and trim settings for specific flight phases such as take-off, circling, aerobatics or landing.
The easily read LC display and the easy to use buttons allow simple, fast and secure data input. Thanks to the
electronic trimming function, the rudders are always in the correct position as the last set values are automatically
called up when the unit is switched on again!
The ergonomic housing fits comfortably into your hand and allows for an easy and safe operation of the model.
The double receiver with its two antennas at 90° angles to each other guarantees optimal reception in any position for
safe signal transmission.
8 Mignon batteries (e.g. Conrad Item-No. 652507, 4-pack, please order 2 packs) or rechargeable Mignon batteries are
required to operate the transmitter, along with 4 Mignon batteries (e.g. Conrad Item-No. 652507, 4-pack, please order
1 pack) for the receiver.
41
4. Delivery content
• Remote control transmitter
• Remote control receiver
• Operating instructions
5. Explanation of symbols
The symbol with the lightning bolt in the triangle indicates a risk of injury, e.g. through an electric shock.
The symbol with the exclamation mark points out particular dangers associated with handling, function or
operation.
The "arrow" symbol indicates special tips and operating information.
42
6. Safety instructions
In the case of any damage caused by failure to comply with these safety instructions the guarantee
will be rendered void. We will not assume any responsibility for consequential damage!
Nor do we assume liability for damage to property or personal injury caused by improper use or
the failure to observe the safety instructions! In such cases the guarantee will be rendered void.
Normal wear and tear in operation and damages due to accidents (like the receiver antenna being torn off,
the receiver housing broken etc.) are excluded from the warranty.
Dear Customer, the following safety instructions are intended not only for the protection of the product, but
also for your own safety and the safety of others. Therefore read this chapter very carefully before putting
the product into operation!
a) General information
Caution, important note!
Operating the model can lead to damage to property and/or individuals. Therefore, make sure that you are
properly insured when using the model, e.g. by taking out private liability insurance. If you already have
insurance, enquire whether the operation of the model is covered before operating it.
Please note: In some countries you are required to have insurance for all model aircraft!
• The unauthorized conversion and/or modification of the product is prohibited for safety and approval reasons (CE).
• The product is not a toy and should be kept out of reach of children under 14 years of age.
• The product may not become damp or wet.
• Do not connect the motor in electric models before the receiver system has been completely installed. In this way
you avoid the motor starting unexpectedly.
• Do not leave packaging material unattended. It may become a dangerous toy for children.
• Each time before you use the model, please check the functional safety of your model and of the remote control
system. Take care to check for obvious damage such as broken plug-in connections or damaged cables. All movable
parts on the model have to be running smoothly, however, there must be no tolerance or 'play' in the bearing.
• Should any questions arise that are not answered with the help of this operating manual, please contact us (contact
information see chapter 1) or another expert.
The operation and the handling of RC models must be learned! If you have never steered such a model, start
especially carefully and get used to the reactions of the model to the remote control commands first. Do be patient!
43
b) Operation
• If you do not yet have sufficient knowledge on how to deal with remote-controlled models, please contact an
experienced model sportsman or a model construction club.
• When putting the device into operation always turn on the transmitter first. Only then may you switch on the receiver
in the model. Otherwise, the model car can react in an unpredictable manner! Angle the transmitter antenna in order
to obtain optimal transmission signal emission. Avoid directing the tip of the antenna directly towards your eyes.
• Before operating the model, check whether the stationary model reacts as expected to the commands of the remote
control.
• When you operate the model, always make sure that no part of your body, body parts of other people or objects
come within the dangerous range of the motors or any other rotating drive parts.
• Improper operation can cause serious damage to people and property! Always make sure that you have a direct eye
contact with the model and never operate it at night.
• Do not operate your model if your ability to respond is unrestricted. The influence of tiredness, alcohol or medication
can cause incorrect responses.
• Operate your model in an area where you don’t endanger other people, animals or objects. Only operate it on
private sites or places which are specifically designated for this purpose.
• In case of a fault, stop operating your model straight away and remove the cause of malfunction before you continue
to use the model.
• Do not operate your RC system during thunderstorms, under high-voltage power lines or in the proximity of radio
masts.
• Always leave the remote control (transmitter) turned on, as long as the model is in operation. To turn off the model,
always switch off the motor first, and then switch off the receiver system. Only then can the remote control transmitter
be turned off.
• Protect your model and the remote control system from dampness and heavy soiling.
• Do not expose your model or the remote control to direct sunlight or excessive heat for a longer period of time.
• In the case of weak batteries (or rechargeable batteries) in the remote control, the range decreases. If the rechargeable
battery in the receiver is low, the model does not react correctly to the commands of the remote control.
If this is the case, stop operation immediately. Afterwards, you should replace the batteries with new ones or recharge
the rechargeable batteries.
• Do not take any risks when operating the product! Your own safety and that of your surroundings depend on your
responsible handling of the model.
44
7. Notes on batteries and rechargeable batteries
• Batteries/rechargeable batteries must be kept out of reach of children.
• Do not leave the batteries/rechargeable batteries lying around in the open; there is a risk of their being swallowed by
children or domestic animals. In such a case, immediately call a doctor!
• Batteries/rechargeable batteries must never be short-circuited, taken apart or thrown into fire. There is a risk of
explosion!
• Leaking or damaged batteries/rechargeable batteries may cause acid burns when they come into contact with skin,
therefore use suitable protective gloves.
• Do not recharge normal batteries. There is a risk of fire and explosion! Only recharge suitable, rechargeable batteries
and use a suitable charging device.
• Please observe correct polarity (plus/+ and minus/-) when inserting the batteries/rechargeable batteries.
• If the device is not used for a longer period of time (e.g. storage), take out the inserted batteries/rechargeable
batteries inserted in the remote control and in the car to avoid damage from leaking batteries/rechargeable batteries.
Recharge rechargeable batteries about every 3 months, as otherwise they might be fully discharged due to self-
discharge, which renders the rechargeable batteries useless.
• Always exchange the entire set of batteries or rechargeable batteries. Do not mix full batteries/rechargeable batteries
with half-full ones. Always use batteries or rechargeable batteries of the same type and manufacturer.
• Never mix batteries and rechargeable batteries! Either use batteries or rechargeable batteries for the remote control
transmitter.
The remote control (transmitter) can be operated with rechargeable batteries instead of batteries.
However, the low voltage (batteries=1.5 V, rechargeable batteries=1.2 V) and the lower capacity of
rechargeable batteries do lead to a decrease of the operating time. However, usually this does not matter,
since the operating time of the transmitter is much longer than that of the model.
If you use disposable batteries in the remote control, we recommend the use of high-quality alkaline
batteries.
When using rechargeable batteries there can be a decrease in range.
8. Charging the battery
The rechargeable Mignon batteries required for the RC system are, in general, empty on delivery and must be charged.
Before the rechargeable battery delivers its maximum power, several complete discharge and charge
cycles are necessary.
Always discharge the rechargeable battery in regular intervals, since charging a "half-full” rechargeable
battery several times can cause a so called memory effect. This means that the rechargeable battery
looses its capacity. It no longer releases all of its saved energy, the operating time of the model and the
transmitter is decreased.
If you use several rechargeable batteries, purchasing a high-quality charger may be worthwhile. They are
normally also suitable for fast charging of rechargeable batteries.
45
9. Transmitter controls
Front:
46
Figure 1
1. Transmitter antenna
2. Binding display
3. "AUX3"/"HOV.T" buttons
4. "AUX2"/"GYRO" toggle switch
5. "AILE D/R" toggle switch
6. "F. MODE" toggle switch
7. Control stick for elevator/nod and aileron/roll function (in mode II)*
8. Trim button for elevator/nod function (in mode II)*
9. Trim button for aileron/roll function (in mode II)*
10. Function switch
11. Input button "L.-/+.R"
12. "Enter" button
13. Illuminated LC display
14. "Exit" button
15. "UP/DN" button
16. Trim button for rudder/tail function (in mode II)*
17. Trim button for throttle/pitch function (in mode II)*
18. Control stick for rudder/tail and throttle/pitch function (in mode II)*
19. "HOLD/RUDD D/R / MIX" toggle switch
20. "ELEV D/R" toggle switch
21. "GEAR" toggle switch
22. "FLAP"/"HOV.P" buttons
* See "STICK" menu in the section titled "Programming the Remote Control Transmitter"
Rear:
23. Carry grip
24. Charging jack
25. Battery compartment cover
26. Trainer/student socket
Figure 2
47
10. Initial operation of the transmitter
Important note:
Henceforth, the numbers used in the text throughout these operating instructions always refer to the
illustration alongside the text or to the illustrations contained in the section in question. Cross-references to
other illustrations will be identified by the corresponding illustration number.
a) Inserting the batteries/rechargeable batteries
For the power supply to the transmitter you will need 8 alkaline batteries (e.g. Conrad Item No. 652507, pack of 4,
order 2) or rechargeable Mignon batteries size (AA). For ecological and also for economical reasons it is recommended
to use rechargeable batteries, since they can be recharged in the transmitter via a built-in charging socket (see fig. 2
pos. 24).
To insert the batteries or rechargeable batteries, please
proceed as follows:
The battery compartment lid (1) is located on the rear side
of the transmitter. Lift the lid in the middle of the lower
edge and fold it open upwards.
Remove the battery holder (2) and place 8 batteries or
rechargeable batteries into the battery compartment. Pay
attention to the correct polarity of the cells. A corresponding
label (3) is located at the bottom of the battery
compartment.
Once you have inserted the full battery holder back into
the remote control close the lid of the battery compartment
and let the locking mechanism click into place.
Important!
The battery holder has 2 snap-in pins (4) which must point upwards when the holder is inserted so that
they can snap into the battery compartment guides.
The battery compartment is fitted with a polarity protected BEC plug-in connector which is connected
inside the transmitter battery compartment. It is not usually necessary to remove the plug when inserting
batteries or rechargeable batteries.
Figure 3
48
b) Charging the rechargeable batteries for the transmitter
On the right hand side of the transmitter (as seen from
behind) underneath a fold-out rubber cover (see fig, 2,
pos 24) there is an inbuilt charging socket. When operating
with rechargeable batteries you can connect a charging
cable (1) to this socket and charge the rechargeable
batteries in the transmitter.
It is very important that you pay attention to the correct
polarity of the connector plug. The inner contact of the
charge socket has to be connected to the plus connection
(+) and the outside contact to the minus connection (-) of
the charger.
The charging current should be approx. 1/10 of the
capacity value of the inserted rechargeable batteries. For
rechargeable batteries with a capacity of 2000 mAh this
corresponds to a charging current of approx. 200 mA and
a charging time of 14 h.
Caution!
Connect the charger only if the rechargeable batteries (1.2V/cell) have been inserted in the transmitter.
Never try to recharge batteries (1.5V/cells) with a charger.
In order to avoid damages to the internal circuit paths and connections, please don’t use fast chargers.
Charging current should not exceed 500 mA.
Figure 4
c) Switching on the Transmitter
Replace the batteries/rechargeable batteries in the remote control with fully charged ones or charge them fully in the
transmitter.
Then check the position of the toggle switches. All switches should be in the forward or bottom positions. Now you can
turn on the transmitter with the on/off switch (see fig. 1, pos. 10).
Initially you will hear two signal tones at different pitches and the binding display (see fig. 1, pos. 2) changes colour
from pink to blue. Then the transmitter goes into "binding mode" in which it attunes itself to the available receiver.
During this period of time the binding display flashes various colours and in the display you will see the word "LINK"
and a series of dots which indicate the progress of the receiver tuning/binding (see fig. 5, pos. 2). When the binding
process is complete, two more signal tones can be heard and the binding display remains lit in blue.
Important note!
As long as the transmitter is in binding mode, it is imperative that no control sticks be moved or toggle
switches be touched. This will lead to an early interruption of the binding process and the remote control
will not be ready for operation.
The operational display with the currently activated/set model appears on the operating display.
If the switches "F-MODE" or "HOLD/RUDD D/R / MIX" (see fig. 1, pos. 6 and 19) are in the incorrect
position, a signal tone sounds and a corresponding message is shown in the display. In this case the
switch in question must be placed in the forward / bottom position.
49
The operating display consists of the following elements:
1. Manufacturer display
2. Binding display
3. Timer display
4. Aircraft model type display
5. Operational charge display
6. Memory display
7. Transmitter type display
8. Rudder/tail trim display
9. Throttle/pitch trim display
10. Aileron/roll trim display
11. Elevator/nod trim display
Figure 5
The display for the elevator/nod trim (see fig. 5 pos. 11) is also used to display the current position of
the"AUX3" / "HOV.T" button.
The display for the throttle/pitch trim (see fig. 5 pos. 9) is also used to display the current position of
the"FLAP" / "HOV.P" button.
The background lighting will switch off automatically approx. 30 seconds after the last button activation.
If the power supply is not sufficient any more for faultless operation, a repeating three tone signal tone draws attention
to the lack of sufficient battery power. The point at which the warning should be activated can be custom-set.
In this case, you should stop operating your model as quickly as possible. For further operation of the transmitter the
rechargeable batteries have to be recharged or new batteries have to be inserted.
50
d) Conversion of the throttle stick function
If you prefer to have the throttle function on the right hand side as opposed to the left hand stick, you have the option
of swapping the rest/hold function and the spring return mechanism of the two stick units.
However, this requires some experience in handling remote controls. Thus you should consult an experienced model
maker or a model construction club if you do not feel capable of undertaking the procedures described in the following.
Unscrew the six screws using a 2 mm Allen key screwdriver
from the rear panel of the transmitter and lift the rear panel
carefully. The cable connections between the main
circuitboard and the rear panel don't necessarily need to
be unplugged.
On the right hand side stick unit (as seen from behind)
remove the two attachment screws (1) for the coach spring
(2) and remove the spring. Now remove the attachment
screws (3) for the return lever. The lever is then pushed
against the stick unit by spring force and now serves as
the return function for the control stick.
Lift the return lever (4) of the left hand stick unit (as seen
from behind) far enough to allow you to insert the
attachment screw (3) that you removed previously through
the pre-drilled hole into the lug (5). The lever is now held
in the top position and is no longer able to return the control
stick to its original position.
Then screw the coach spring (2) into place on the left hand
stick unit. The two attachment screws (1) must thread into
the pre-drilled holes (6). With the upper screw, which is
passed through the oblong coach spring opening, you can
custom set the frictional force of the coach spring.
Once you have checked the mechanical function of the
two stick units, replace the rear panel and screw it back
into place.
The electronic interchange of stick functions is carried out
later in the "STICK" function settings menu.
Figure 6
51
e) Setting the control stick length
You can adjust the length of the control sticks, depending
on your steering habits.
To do so simply hold the bottom part of the grip (1) and
turn the upper part (2) anti-clockwise. You can now set
the length of the control stick by turning the bottom part of
the grip.
Finally, tighten the upper part of the grip back up.
Figure 7
52
11. Initial operation of the receiver
a) Connecting the receiver
On its right hand side the receiver offers the
option of connecting up to 8 servos with
Futaba or JR plugs.
The receiver battery is either attached to any
free plug or to the bottom plug (BATT).
RX-2801
2,4
GHz
Figure 8
BATT
When connecting servos and drive controls, always make sure to pay close attention to the correct polarity
of the plug connectors. For polarity-secure Futaba plug-in connectors the positive lead (yellow, white or
orange, depending on the manufacturer) must be connected to the left (inner) of the three aligned contacts.
The plug-in connection for the negative lead (black or brown, depending on the manufacturer) must thus
be connected to the right (outer) contact.
The outputs of the receiver are assigned as follows:
Channel Output Helicopter Plane model
1 ELEV Nod servo Elevator servo
2 AILE Roll servo 1. Aileron servo
3 THRO Throttle servo / flight controller Throttle servo / flight controller
4 RUDD Tail servo Rudder servo
5 GEAR Retractable landing gear Retractable landing gear
6 AUX1 Pitch servo 2. Aileron/flap servo
7 AUX2 Gyroscope sensitivity Channel 7
8 AUX3 Channel 8 Channel 8
BATT Rechargeable battery connection* Rechargeable battery connection*
SERVO
ELEV
SERVO
AILE
SERVO
THRO
SERVO
RUDD
SERVO
GEAR
SERVO
AUX1
SERVO
AUX2
SERVO
AUX3
*For electric models with electronic flight controller, a separate rechargeable receiver battery is only required if the
engine controller/flight controller used does not have a BEC switcher. For further information, refer to the technical
documents of the controller.
Channels 5 to 8 can be differently assigned depending on the model. For further information regarding
servo connection please refer to the section titled "Programming the Remote Control Transmitter" for each
of the respective functions.
53
Important!
When disconnecting plug-in connections it is recommended that you use pincers or long-nosed pliers. To
avoid breaking cables, you should always pull the plastic housing of the plug rather than the cable when
you remove a plug.
b) LED display
The receiver has an LED display on the back, this serves primarily as an indicator of the receiver status.
Immediately after it is switched on, the receiver carries out the binding procedure. The LED flashes very quickly. Once
the receiver is register with the transmitter the LED stays lit continuously. If there is no transmitter signal or if the
receiver ID is deleted the LED flashes slowly.
c) Installing the receiver
The installation of the receiver depends on the model. For this reason, you should always follow the recommendations
of the model manufacturer regarding receiver installation. When using electric models maintain a sufficient safety
distance from electronic flight controllers as the controller can reduce the reception. Regardless of the model, you
should however always try to install the receiver so that it is protected from dirt, moisture, heat and vibration in the best
possible way. Two-sided adhesive foam (servo tape) or even rubber rings that hold the foam-wrapped receiver securely
in place are suitable for fastening.
Caution!
The receiver has two antenna cables which
are of an exactly measured length. Therefore
the aerial wires must not be wound up, angled,
wrapped up or cut.
This would decrease the range significantly
and thus pose a considerable safety risk.
lay the two antenna cables in the model in such a manner
that the two cables, as in the adjacent figure, are as straight
as possible and are at a 90° angle to one another.
54
Figure 9
d) Installing the servos
To install the servos (1) please use the rubber items (2)
supplied with the servos and the screw grommet (3).
During operation the rubber items must protect the servo
from vibrations and jolts in the model. Thus the servo
housing must swing freely and must not have any direct
contact to the model.
Linkages and rudder levers of servos installed next to one
another should not hinder one another even at maximum
extension.
Rudders and linkages which are not free-moving do not
allow the servo to move into the required position. They
also unnecessarily use more power and the model is not
smoothly controlled.
Always mount the servo lever at a 90° angle to the linkage
rods (see sketch A).
The rudder or steering travel will not be equal on both
sides if the servo lever is mounted on an angle to the
linkage rod (sketches B and C).
2
3
2
3
1
Figure 10
A
B
C
SERVO SERVO
SERVO
Figure 11
55
e) Switching on the receiver unit and checking the servo functions
As already mentioned, you must attune the transmitter and receiver to one another (binding function). This makes it
necessary to always carry out the activation or switching on of individual parts of the system in the same order:
• Switch on the transmitter.
• If the binding display is flashing, switch on the receiver.
• Once the binding process is complete, the sensor emits a tone signal and the servos move to the positions prescribed
by the transmitter.
If correctly attached the servos should react to movement of the control sticks at outputs 1 - 4. The servos at the outlets
5- 8 react depending on the models programmed to the transmitter and/or the activated switches and controllers.
If the transmitter doesn't carry out the binding procedure, it is programmed to a set ID code. Further
information in this respect can be found in the functions setting menu under the "STICK" menu item.
Important note!
When starting the system put the transmitter into operation first then the receiver. When switching it off,
always first separate the receiver from the power supply and then switch off the transmitter.
Never turn the transmitter off when the receiver is still in operation. This can lead to unexpected reactions
by the model!
56
12. Programming the remote control transmitter
To optimally adjust it to your model, your remote control offers you two different function menus with 10 different menu
items which each offer a variety of settings options.
Depending on your model type (helicopter or plane model) which you have set, the different setting options differ in the
function menus.
The settings are carried out with buttons with the following functions:
Figure 12
Input button "L.-/+.R" (see also fig. 1, pos. 11)
With the toggle switch you can switch the cursor bar from the left to right and vice versa or reduce or increase a setting
value.
"Enter" button (see also fig. 1, pos. 12)
With this button you can activate selected settings and/or save the changed settings.
"Exit" button (see also fig. 1, pos. 14)
With this button you can exit the currently selected menu or sub-menu without saving the changed values. Every press
of this button takes you a step back until you reach the operational display.
Input button "UP/DN" (see also fig. 1, pos. 15)
With this toggle switch you can switch the cursor bar upwards or downwards and vice versa.
The engine emits a short signal tone for each press of a button.
The selected menu item, the called up function or the settable value always has a black background in the
display.
"F-MODE" toggle switch (see also fig. 1, pos. 6)
With this switch you can switch between the individual flight modes. If the switch is in the bottom position, the flight
mode Norm (normal) is activated. In the middle switch setting, the flight mode is "ST1" and in the upper switch setting
activates the flight mode "ST2".
57
13. The functions settings menu
In order to be able to call up the functions setting menu (Func. Menu) proceed as follows:
• Switch the transmitter on and check which symbol (helicopter or plane
model) is shown in the display.
• Then press the "ENTER" button to call up the function settings menu.
• With the "UP/DN" and the "L.-/+.R" input buttons you can select the desired
menu item.
• By pressing the "Enter" button the selected menu item is activated to
make further settings.
• To exit the function settings menu and/or subordinate menu items simply
press the "Exit" button.
If the helicopter symbol was visible in the display beforehand, you are already
in the functions setting menu for model helicopters. If the plane model was
visible in the display, then you can change the model type from plane to
helicopter under the menu item "MDSEL".
The precise procedure approach can be read in the next menu item 13.2. "MDSEL" (model selection).
The following settings functions are available to you in the functions setting menu ("Func. Menu") for model helicopters:
1. "MDSET" Function (model settings)
a) "REVERS" (reversing the servo direction)
b) "SUBTRIM" (basic trimming)
c) "TRAVADJ" (servo travel setting)
d) "SWAATS" (swash plate /ATS mixer)
e) "GYRHLD" (gyro sensitivity setting/throttle hold)
f) "DR&EXP" (dual rate and exponential setting)
g) "CURVES" (throttle and pitch curve setting)
h) "PROGMIX" (programmable mixer)
i) "FAILSAF" (failsafe setting)
j) "MONITOR" (servo function display)
for model helicopters
Figure 13
58
2. "MDSEL" Function (model selection)
a) "MODEL" (select a model memory)
b) "NAME" (model name setting)
c) "TYPE" (model type setting)
3. "COPY" Function (copy function)
a) "MODEL" (copy model data within the system)
b) "RECEIVE" (receive model data from a second remote control unit)
c) "TRANSMIT" (transmit model data to a second remote control unit)
d) "TRAINER" (trainer/student operation)
4. "STICK" Function (transmitter stick settings, transmitter identification)
5. "INPUT" Function (control signaller allocation for unassigned channels)
6. "SWASH" Function (swash plate settings)
7. "STEP" Function (trim setting)
8. "DISP" Function (display settings, range test)
9. "ALARM" Function (alarm settings)
10. "RESET" Function (reset transmitter to factory settings)
The servos and/or the respective functions are listed in the individual menus in English:
Elevator/nod function = Elevator ("ELEV")
Aileron/roll function = Aileron ("AILE")
Throttle function = Throttle ("THRO")
Rudder/ tail function = Rudder ("RUDD")
59
13.1. "MDSET" function (model settings)
a) "REVERS" (reversing the servo direction)
Depending on the position of the servo installation and the linkage of the swash plate or the tail rotor it may happen
that a control movement to the left on the transmitter may invoke a steering movement to the right.
For this reason the transmitter provides the option to determine the direction of servo travel and save them independently.
Setting the servo directions of travel
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "REVERS" menu item and push the
"Enter" button to activate the menu item.
In the display you will see display items for the eight control functions
("CHNL") with the current set directions. The receiver outlet or channel
which is currently able to be adjusted is marked with an arrow which points
downwards.
• Use the "UP/DN" button to select the desired receiver outlet for which you
wish to change the servo travel direction.
• With the "L.-/+.R" input button you can now adjust the travel direction of
the respective servo. The labelling of the respective switch change from
the "NORM" (normal) setting to "REVS" (reverse).
• You can use the "UP/DN" button to select other channels for which you
also wish to change the servo travel direction.
• When all servos are displaying the correct desired direction of travel, press
the "Enter" button to save the settings. The function settings menu appears
in the display.
60
Figure 14
b) "SUBTRIM" (basic trimming)
As previously mentioned when installing the servo, always mount the servo lever at a 90° angle to the linkage rods
(see fig. 11). The bar display for the trim button on the transmitter should be in the central position in this case. Only if
this is done will you be able to carry out fine trimming in both directions using the trim buttons during flight (see fig. 1,
pos. 8,9,16 and 17)
However the cog teeth on servo levers are often so large the exact 90° angle cannot be set. This is why the basic
trimming helps to set the correct middle setting of the servo arm without the need to adjust the trim buttons.
Important!
Before you set the basic trimming, consult the operational display to check whether the four trim buttons
are in the exact middle setting (higher signal tone when button pressed).
Setting the basic trimming
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "SUBTRIM" menu item and push
the "Enter" button to activate the menu item.
In the display you will see display items for the eight control functions with
the current set trim values. The receiver outlet or channel which is currently
able to be set is marked with an arrow which points right.
• Use the "UP/DN" button to select the desired receiver outlet for which you
wish to change the servo trim values.
• With the "L.-/+.R" input button you can now adjust the setting to the required
value. The adjustable value is between L/+/D/H 125 and R/-/U/L 125.
Practical tip:
When you are first installing the linkage, make sure that you obtain the
best possible mechanical servo lever positioning. The basic trimming will
then only need to be adjusted minimally.
• You can use the "UP/DN" button to select other channels for which you
also wish to change the basic trimming.
• When all servos are displaying the correct middle setting, press the "Enter"
button to save the settings. The function settings menu appears in the
display.
Figure 15
61
c) "TRAVADJ" (servo travel setting)
Using the servo travel setting you can precisely define the maximum size of servo travel that is permitted on each side.
This function is typically used to protect servos from mechanically hitting an obstacle when deflecting to the full extent.
You can set a value from 0 to 150 %. The smaller the value, the shorter the servo travel.
Always try to select the linkage points on the servo and the rudder levers such that they reach maximum
extension at the factory preset value of 100%. The linked rods or levers should not hit anything or come
under any mechanical tension. This ensures that this function is only required to make minimal adjustments.
The rudder travel values given in the model operating instructions which may be less than the maximum
possible rudder travel values, can be reduced later on with the dual rate function.
Setting of maximum servo travel
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "TRAVADJ" menu item and push
the "Enter" button to activate the menu item.
In the display you will see four of the eight control functions with the current
set servo travel values. The receiver outlet or channel which is currently
able to be set is marked with an arrow which points right. As this menu
allows the max. servo travel values to the left and right to be set separately,
the currently adjustable value flashes.
• Use the "UP/DN" button to select the desired direction of travel at the
desired receiver outlet for which you wish to adjust the max. servo travel.
• With the "L.-/+.R" input button you can now adjust the setting to the required
value. The adjustable value is between L/+/D/H 0% and R/-/U/L 150%.
• Change to the other direction of travel for the servo using the "UP/DN"
button and set the desired servo travel using the "L.-/+.R" input button.
• You can use the "UP/DN" button to select other channels for which you
also wish to change the maximum servo travel.
The arrows pointing upwards or downwards on the right edge
of the display show you that there are further settings options
available which cannot be shown in the current display.
• When all servos are displaying the correct desired servo travel values,
press the "Enter" button to save the settings. The function settings menu
appears in the display.
62
Figure 16
d) "SWAATS" (swash plate /ATS mixer)
Swash plate mixer "SWASHMIX"
If you have set a swash plate linkage with 2 or 3 servos in the functions setting at menu item "13.6. SWASH" (swash
plate setting), you now have the opportunity to change the mixing ratio of the swash plate servos to one another using
the "SWASHMIX" mixer.
In this way you can perfectly set the correct movement direction and the
required angle of deflection or shift path of the swash plate in reaction to the
transmitter control signals.
Setting the swash plate mixer
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "SWAATS" menu item and push the
"Enter" button to activate the menu item.
The display shows the two mixers "SWASHMIX" and "ATSMIX" for you to
choose from.
• Use the "UP/DN" button to select the "SWASHMIX" mixer push the "Enter"
button to confirm.
In the case of swash plate linkage with two servos, the values for the
"AILE" (roll function) and "PIT" (pitch function) are displayed. If you have
set a three servo linkage, the value for "ELEV" (nod function) will also be
shown.
The control function which is currently able to be set is marked with an
arrow which points right.
• Use the "UP/DN" button to select the desired control function.
• With the "L.-/+.R" input button you can now adjust the swash plate
deflection to the required value. The adjustable value is between 0 and
100%.
• You can use the "UP/DN" button to switch to other functions and also set
the required swash plate deflection for those functions.
• When the swash plate reacts correctly to the control signals, press the
"Enter" button to save the settings. The function settings menu appears in
the display.
Figure 17
63
ATS-Mixer "ATSMIX" (revolution mix)
The physical properties of a helicopter means that the tail of the helicopter always tends to turn against the direction of
rotation of the main rotor. This is why helicopters which do not have a second rotor require a tail rotor which counter the
rotational movement of the tail with corresponding reactive force.
The larger the angle of attack of the main rotor blades, the stronger the tendency of the helicopter to turn against the
direction of main rotor rotation. If the angle of attack is reduced the tendency reduces correspondingly.
In order to ensure that the tail does not swing out when the helicopter rises or falls during hovering flight, the ATS mixer
(revolution mix) is used to set a corresponding deflection of the tail rotor depending on the setting of the main rotor
blade.
Setting the ATS mixer
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "SWAATS" menu item and push the
"Enter" button to activate the menu item.
The display shows the two mixers "SWASHMIX" and "ATSMIX" for you to
choose from.
• Use the "UP/DN" button to select the "ATSMIX" mixer push the "Enter"
button to confirm.
In the display you will see the mix values for the "NORM" (Normal) and
"STNT" ("ST-1" for circling and "ST-2" for aerobatics) fight modes with the
current set servo travel values. The flight mode which is currently able to
be set is marked with an arrow which points right. As this menu allows the
required deflection values to the left and right to be set separately, the
currently adjustable value flashes.
• Use the "UP/DN" button to select the "Up" setting in the "NORM" flight
mode.
• Use the "L.-/+.R" button to enter the required correction value, which is
needed when the pitch stick is moved from the middle setting in an upwards
direction. Whether you need to set a value to the left or right depends on
the direction that the main rotor turns and on the linkage of the tail rotor.
• Then use the "UP/DN" button to select the "Dn" setting in the "NORM"
flight mode.
• Use the "L.-/+.R" button to enter the required correction value, which is
needed when the pitch stick is moved from the middle setting in a
downwards direction.
• Change to the "STNT" flight mode using the "UP/DN" button and set the
required correction values for the tail servo using the same procedure.
Figure 18
64
The exact values for this setting can be elucidated with the help of a few test flights. Simply apply rapid
pitch during a hover. The helicopter must climb rapidly and the tail should not swing out in the process. The
tail should also not swing out if the pitch value is reduced during hovering flight at a sufficient height. Begin
with very small mixing values initially and slowly work towards the optimal setting.
You can switch between the individual flight modes using the "F-MODE" toggle switch (see Figure 1, pos. 6).
Caution!
High quality gyros with correspondingly rapid tail servos are capable of faultlessly compensating for rapid
changes in pitch. In this case all of the values in the ATS mixer can be set to 0%.
65
e) "GYRHLD" (gyro sensitivity setting/throttle hold)
Gyro sensitivity setting "GYRHLD"
So-called gyroscope (or gyro) systems are used in order to stabilise the tail of the helicopter in the air. There is a
connection between the receiver and the tail servo.
If the tail turns sideways as a result of a wind gust or other external influences, this is recognised by the gyro and a
corresponding control command is sent to the tail servo to counter the turn.
Gyroscope systems that have an additional controller input can be preset to two different sensitivity levels and these
can be selected during flight using a toggle switch. This requires the controller input for the gyro to be connected to
output 7 ("AUX2") of the receiver.
You can select switching to be carried out using the "F.MODE" flight mode switch (see fig. 1, pos. 6) or the toggle
switch "AUX2"/"GYRO" (see fig. 1, pos. 4).
Important notice!
In order for the gyro sensitivity to be controllable via outlet 7 ("AUX2"), the setting "AUX2/GYRO" must be
activated in the functions setting menu 13.5. "INPUT" under the value "AUX2:"
Standard and AVCS/Heading lock gyroscope systems
A standard gyroscope only adjusts the tail servo within the timeframe required for the positional electronics of the
gyroscope to recognise a movement.
An AVCS/heading lock gyro controls the tail servo until the tail has returned to its original position, where it was prior to
the gyro control process initiation. As an AVCS heading lock gyro can also be operated in standard mode, the sensitivity
control of the two systems is slightly different.
If sensitivity control were carried out with a slide control,
the control range for a standard gyro would be linear from
min. to max. sensitivity with the middle setting of the slide
control would correspond to 50% of the sensitivity.
In an AVCS/heading lock gyro in comparison, the middle
setting of the slide control corresponds to the min. gyro
sensitivity.
The two end settings correspond to the respective max.
settings for gyro sensitivity in the standard or AVCS mode
(see sketch).
100%
50%
0%
LINEAR
100%
50%
0%
AVCS-Modus
Normal-Modus
Normal-Modus
100%
50%
0%
50%
100%
66
Figure 19
For further information, refer to the design documents of the gyro system.
Setting the gyro sensitivity
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "GYRHLD" menu item and push the
"Enter" button to activate the menu item.
The display shows the two items "GYROSENS" and "THROHOLD" for
you to choose from.
• Use the "UP/DN" button to select "GYROSENS" and push the "Enter"
button to confirm.
The display shows the symbol for the automatic coupling of gyro sensitivity
to the flight mode switch "F.MODE" and the currently set value for the
gyro sensitivity. The value which is currently able to be set is marked with
an arrow which points right.
• Use the "UP/DN" button to select the "0" value.
• With the "L.-/+.R" input button you can now adjust the setting to the required
value for gyro sensitivity when hovering (flight mode "NORM"). The
adjustable value is between 0% and 100%.
• Use the "UP/DN" button and to select the setting value "1" and set the
desired second gyro sensitivity for circling or aerobatics (input value "STNT"
is for flight mode "ST1" and ST2") using the "L.-/+.R" input button. This
value should be slightly less than that set previously.
The required values for gyro sensitivity can generally be found
in the gyroscope instructions. You can easily check the settings
exactly by taking a few test flights.
Figure 20
67
• Use the "UP/DN" button to select the "NORM" flight mode and use the
"L.-/+.R" button to select the setting "0". The sensitivity value saved for
the "0" setting is thus assigned to the "NORM" flight mode.
• Then use the "UP/DN" button to select the "STNT" flight mode and use
the "L.-/+.R" button to select the setting "1". The sensitivity value saved
for the "1" setting is thus assigned to the "STNT" flight mode.
When the flight mode switch "F.MODE" (see fig. 1, pos. 6) is
pushed all the way forward/down, the flight mode "NORM" is
activated. If the switch is moved to the middle or upper position
the flight mode "STNT" is activated.
• Use the "UP/DN" button to select the "HOLD" flight mode (Autorotation)
and use the "L.-/+.R" button to select the setting "0" or "1".
Switching the gyro sensitivity with the "AUX2"/"GYRO" toggle
switch (see fig.1, pos. 4) works only if you have activated this
switch (see following menu item).
Figure 21
Practical tip:
If you attach a servo to the "AUX2" receiver outlet for test purposes, you can very easily see the effect of the gyro
sensitivity setting and can also exactly control the switching by the flight mode switch.
If you wish to carry out switching the gyro sensitivity with the "AUX2"/"GYRO" toggle switch (see fig.1, pos. 4) proceed
as follows:
• Use the "UP/DN" button to select the "AUTO" setting and use the
"L.-/+.R" button to select "GYRO/AUX2".
• The gyro sensitivity can now be switched with the "GYRO/AUX2" switch
and is independent of the flight mode. Depending on the switch setting
value "0" or "1" will flash.
• If you would like to completely switch off the gyro sensitivity then switch
the setting from "GYRO/AUX2" to "INH" with the "L.-/+.R" button.
• When the gyro sensitivity is set to your expectations, press the "Enter"
button to save the settings. The function settings menu appears in the
display.
68
Figure 22
"THROHOLD" throttle hold
In order to be able to practice an autorotation landing, you need to uncouple the motor function from the pitch stick
using a toggle switch. The motor must be at sufficient throttle that the centrifugal clutch is reliably open in the case of
a combustion engine. Nevertheless the motor should be set such that it spontaneously takes in fuel and can be
restarted immediately if the situation so requires.
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "GYRHLD" menu item and push the
"Enter" button to activate the menu item.
The display shows the two items "GYROSENS" and "THROHOLD" for
you to choose from.
• Use the "UP/DN" button to select "THROHOLD" and push the "Enter"
button to confirm.
"INH" appears in the display to show that the throttle hold is deactivated.
• With the "L.-/+.R" input button you can now activate the throttle hold.
The "ACT" symbol appears in the display and the current throttle value is
shown.
• Use the "UP/DN" button to select the "HOLD" Pos. setting and use the
"L.-/+.R" button to select the desired throttle value.
• When the required throttle value has been set, press the "Enter" button to
save the settings. The function settings menu appears in the display.
Figure 23
69
f) "DR&EXP" (dual rate and exponential setting)
The dual rate function:
With the dual rate function you can reduce the servo travel at the press of a button. You can do this to simply and easily
reduce the reactiveness of a model which reacts too aggressively at full extension. For beginners, models with easily
reduced rudder deflection are considerably easier to handle.
When first flying a new model where the strength of reaction to control commands is unknown, or where you have no
manufacturer's information for settings, it has proven very useful to be able to reduce the deflections during flight.
The exponential function:
Unlike the dual rate function the exponential function does not reduce the end point of the servo deflections. The
exponential function only acts on the middle region of the control curve. In practice this means that the reaction to the
control stick is no longer linear in its progression, it forms a curve.
Depending on the exponential function setting the curve can become flatter or steeper in the middle.
As all control sticks are supposed to sit in the middle setting during hovering, a flat curve means the model will react
significantly slower to control commands than with a steep curve.
The dual rate / exponential values can be individually adjusted in the nod function ("ELEV"), the roll function
("AILE") and the tail function ("RUDD"). The switch with which you change between the standard and dual
rate / exponential settings or between dual rate exponential values are preset with the "ELEV D/R",
"AILE D/R" and "HOLD/RUDD D/R / MIX" (see fig. 1, pos. 20, 5 and 19).
70
Setting the dual rate / exponential function
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "DR&EXP" menu item and push the
"Enter" button to activate the menu item.
On the left half of the display you will see the dual rate and exponential
values for the nod function ("ELEV"). At the same time you can also the
settings for the toggle switch "ELEV D/R" ("Pos-0" or "Pos-1"). The marking
arrow for the adjustable values is already displayed at the D/R function.
To better display the different settings options, the right half of the display
shows the control curve for the nod function as a graph.
• Move the "ELEV D/R" toggle switch into the forward setting ("Pos-0").
• With the "L.-/+.R" input button you can now set the required dual rate
value. The adjustable value is between 0% and 125%.
• Use the "UP/DN" button to switch to the exponential function and use the
"L.-/+.R" button to select the desired exponential value. The adjustable
value is between -100 and +100%. The effect of the set values can be
easily seen in the displayed graph.
• Move the "ELEV D/R" toggle switch into the back setting ("Pos-1") and
set the desired dual rate and exponential values for this switch position.
Figure 24
71
• With the "UP/DN" button you can switch to the roll function ("AILE") and
the tail function ("RUDD") and you can also make the required settings to
the dual rate and exponential values by the same method.
Figure 25
In addition to manual switching of the individual dual rate and exponential values, there is the option to individually
assign values to the "F-MODE" and "HOLD/RUDD" toggle switches (see fig. 1, pos. 6 and 19).
• Use the "UP/DN" button to select the "AUTO" setting in the "DR&EXP"
menu.
• Use the "UP/DN" button to select the individual switch positions or flight
modes ("ST-1", "ST-2" and "HOLD") and activate them with the "L.-/+.R"
button.
For flight mode "ST-1" the "F-MODE" toggle switch must be in
the middle setting. For flight mode "ST-2" the "F-MODE" toggle
switch must be in the top setting. For flight mode "HOLD" the
"HOLD/RUDD D/R / MIX" toggle switch must be in the top
setting.
As soon as one of the three flight modes is called up, the dual rate and
exponential values for the nod, roll and tail functions saved under "Pos-1"
will be automatically activated.
• When the required dual rate and exponential values have been set, press
the "Enter" button to save the settings. The function settings menu appears
in the display.
72
Figure 26
g) "CURVES" (throttle and pitch curve setting)
Throttle curve setting
In a proportional remote control unit the control stick and the corresponding
servo maintain linear reactions. This means: As much as you move the stick
from one side to the other, the lever of the respective servo will also move
from one side to the other.
If the stick for the throttle/pitch function is in the lowest position (L), the
butterfly valve on the carburettor should be almost completely closed. If the
control stick is then moved to the middle position (2) the throttle flap should
be approx. 50% open.
If the control stick is in the uppermost position (H), the throttle should be
fully open so that the motor can run at full power. The throttle curve thus
corresponds with a straight line (see the adjacent sketch).
Using the throttle curve setting you have the option of changing the shape
of the throttle curve at five different points and to change and save the curve
specifically for each flight mode.
Setting the throttle curve
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "CURVES" menu item and push the
"Enter" button to activate the menu item.
The display shows the two items "THRCURVE" and "PITCURVE" for you
to choose from.
• Use the "UP/DN" button to select "THRCURVE" and push the "Enter"
button to confirm.
The display shows the throttle curve for the "NORM" flight mode with the
first setting point on the curve ("L") already outlined. In addition the
percentage value of the setting point is displayed.
The horizontal line in the right of the display shows you the current setting
of the throttle/pitch stick. The relationship between the stick position and
the throttle curve values is also shown on the lower bottom edge of the
display by the words "IN" and "OUT".
• With the "L.-/+.R" input button you can now adjust the required value for
point "L" on the throttle curve. The adjustable value is between 0 and
100%. The effect of the setting you make is immediately visible in the
throttle curve on the right half of the display.
• Then use the "UP/DN" button to switch to the second point on the throttle
curve ("1") and use the "L.-/+.R" button to select the desired value.
• Keep repeating this procedure until all five points on the curve have been
adjusted to your wishes.
100%
75%
50%
25%
0%
L
Stick
Servo
Stick
Servo
3
2
1
H
Figure 27
Figure 28
73
• With the "L.-/+.R" input button you can now switch to flight mode "ST-1".
The display shows the current throttle curve for the flight mode "ST-1".
In practice, it has proven useful to use this setting for circling. This places
the lower half of the throttle curve to hovering flight level.
If you wish to decrease height while circling and thus reduce the rotor
blade angle of attack, the rotor head stays at the set revs and the motor
does not reduce power.
• The setting of the throttle curve for flight mode "ST-1" is carried out in the
same way as for flight mode "NORM".
• Once you have set the curve for flight mode "ST-1", call up flight mode
"ST-2" with the "L.-/+.R" button.
The display now shows the current throttle curve for the flight mode
"ST-2".
In practice, it has proven useful to use this setting for aerobatics. The
throttle curve is v-shaped in this case.
In connection with a correspondingly high negative angle of attack of the
rotor blades, this makes inverted hovering possible.
• The setting of the throttle curve for flight mode "ST-2" is carried out in the
same way as for flight mode "ST-1".
• When the throttle curve for all three flight modes have been set, press the
"Enter" button to save the settings. The function settings menu appears in
the display.
In addition to the throttle curve there is the option to use the "AUX3" / "HOV.T" button (see fig. 1, pos. 3) to
lift or lower the throttle curve in the middle region. As these settings options allow for a perfect throttle
adjustment in hover flight, the operating button only reacts when the model is in "NORM" flight mode. No
other setting may be assigned to the button in the function settings menu "13.5 INPUT".
Figure 29
Figure 30
74
Pitch curve setting
In a proportional remote control unit the control stick and the corresponding
servos maintain linear reactions. This means: As much as you move the
stick from one side to the other, the levers of the respective swash plate
servo will also move from one side to the other.
If the throttle/pitch stick on the transmitter is in the lowest position (L), the
rotor blades exhibit a negative angle of attack. If the control stick is in the
middle position (M), the rotor blades should exhibit a neutral angle of attack
- not a positive nor a negative angle of attack. If the control stick is in the
uppermost position (H), the rotor blades exhibit a positive angle of attack.
The pitch curve thus corresponds with a straight line (see the adjacent
sketch).
Using the pitch curve setting you have the option of changing the shape of
the pitch curve at five different points and to change and save the curve
specifically for each flight mode.
Setting the pitch curve
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "CURVES" menu item and push the
"Enter" button to activate the menu item.
The display shows the two items "THRCURVE" and "PITCURVE" for you
to choose from.
• Use the "UP/DN" button to select "PITCURVE" and push the "Enter" button
to confirm.
The display shows the pitch curve for the "NORM" (normal) flight mode
with the first setting point on the curve ("L") already outlined. In addition
the percentage value of the setting point is displayed.
The horizontal line in the right of the display shows you the current setting
of the throttle/pitch stick. The relationship between the stick position and
the pitch curve values is also shown on the lower bottom edge of the
display by the words "IN" and "OUT".
• With the "L.-/+.R" input button you can now adjust the required value for
point "L" on the pitch curve. The adjustable value is between 0 and 100%.
The effect of the setting you make is immediately visible in the throttle
curve on the right half of the display.
• Then use the "UP/DN" button to switch to the second point on the pitch
curve ("1") and use the "L.-/+.R" button to select the desired value.
• Keep repeating this procedure until all five points on the pitch curve have
been adjusted to your wishes.
In practice it has proven useful to keep the pitch curve somewhat
flatter in the Norm setting and not to work with all too larger
pitch values so that the helicopter can be more sensitively
controlled in hovering flight.
100%
75%
50%
25%
0%
L
Stick
Servo
Stick
Servo
1
3
2
H
Figure 31
Figure 32
75
• With the "L.-/+.R" input button you can now switch to flight mode "ST-1".
The display shows the current pitch curve for the flight mode "ST-1".
In practice, it has proven useful to use this setting for circling. The setting
involves the pitch curve being slightly steeper in order to be able to more
easily transfer from circling to hovering flight.
• The setting of the pitch curve for flight mode "ST-1" is carried out in the
same way as for flight mode "NORM".
• Once you have set the pitch curve for flight mode "ST-1", call up flight
mode "ST-2" with the "L.-/+.R" button.
The display now shows the current pitch curve for the flight mode "ST-2".
In practice, it has proven useful to use this setting for aerobatics. In this
case the rotor blades should exhibit a strongly negative angle of attack
(for inverted flight) and a strongly positive angle of attack (for rapid
climbing).
• The setting of the pitch curve for flight mode "ST-2" is carried out in the
same way as for flight mode "ST-1".
• Once you have set the pitch curve for flight mode "ST-2", call up flight
mode "HOLD" with the "L.-/+.R" button.
The display now shows the current pitch curve for the flight mode "HOLD".
In practice, it has proven useful to use this setting for autorotation landing.
The rotor blades need to be set to the largest possible positive angle of to
catch as much lift as possible with low rotor speed.
• The setting of the pitch curve for flight mode "HOLD" is carried out in the
same way as for flight mode "ST-2".
• When the pitch curve for all four flight modes have been set, press the "Enter" button to save the settings. The
function settings menu appears in the display.
In addition to the pitch curve settings there is the option to use the "FLAP" / "HOV.P" button (see fig. 1,
pos. 22) to lift or lower the pitch curve in the middle region. As this settings option allows for a perfect pitch
adjustment in hover flight, the operating button only reacts when the model is in "NORM" flight mode. No
other setting may be assigned to the button in the function settings menu "13.5 INPUT".
You can strongly influence the flight behaviour of your helicopter with the pitch and throttle curve.
If the throttle curve and therefore the speed of the rotor head is lowered for hover flight, but the angle of attack of the
rotor blades raised at the same time, the helicopter responds slowly.
If the throttle curve and therefore the speed of the rotor head is increased for hover flight, but the angle of attack of the
rotor blades decreased at the same time, the helicopter responds very quickly.
Figure 33
Figure 34
Figure 35
76
h) "PROGMIX" (programmable mixer)
With this mixer you have the option of controlling a slave channel via a master channel. The synchronisation of the
slave channel can either be linear in action or can follow an individually adjustable curves, whereby the deflection
direction and values of the slave servo and the point where the mixer becomes active are freely programmable. A total
of 4 freely programmable mixers are available.
Setting the programmable mixer
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "PROGMIX" menu item and push
the "Enter" button to activate the menu item.
The display shows the four different mixers and the first mixer is shown
with a black border and can be activated.
• Use the "L.-/+.R" button to switch the mixer form "OFF" to "ON" and push
the "Enter" button to confirm.
The different parameters for the mixer programming now appear in the
display. The respective adjustable value is underlined.
• Use the "UP/DN" button to select master channel in the upper left of the
display and use the "L.-/+.R" button to select the master channel which is
to act as the signaller.
• Use the "UP/DN" button to select slave channel on the right next to it and
use the "L.-/+.R" button to select the slave channel which is to follow the
master channel signals.
• Use the "UP/DN" button to switch to the input value "SW": and use the
"L.-/+.R" input button to select the button with which the mix function is to
be switched on and off. The switch setting of the respective activated
switch is shown next to it on the right ("ON" or "OFF")
The following switches are available:
ON: The mixer is always active
ELEV: "ELEV D/R" toggle switch (see fig. 1, pos. 20)
GEAR: "GEAR" toggle switch (see also fig. 1, pos. 21)
F-S2: "F-MODE" toggle switch (see fig. 1, pos. 6) upper setting
F-S12: "F-MODE" toggle switch (see fig. 1, pos. 6) upper and middle
setting
F-NR: "F-MODE" toggle switch (see fig. 1, pos. 6) bottom setting
Figure 36
77
• Use the "UP/DN" button to select the input value "OFFS": and use the
"L.-/+.R" input button to set the desired Offset value.
Figure 37
The offset setting
The offset point is the setting on the master controller from which the slave channel is mixed in. If the value is zero then
the offset point is in the middle setting of the master controller. If the master controller is then moved from the middle
setting to the left or the right or upwards or downwards, the slave servo will also move left, right, up or down at a
correspondingly set deflection value ("RATE").
You can however also move the offset point. This is recommended if the slave servo is only intended to carry out a
deflection in one direction and if a "non-self neutralising controller" is to be used as the master controller, e.g. the pitch
stick. In the corresponding setting the slave servo is in the middle setting, although the pitch stick (master controller) is
in the lowest setting.
• Use the "UP/DN" button to switch to the input value "CURVE": and use
the "L.-/+.R" input button to select the "OFF" setting. Now the mixer works
in a linear manner.
• You can use the "UP/DN" button to select the "RATE" setting and with the
"L.-/+.R" input button you can set the slave servo deflection separately on
both sides. The adjustable value is between -100 and +100%, the direction
of slave servo rotation is determined by the positive or negative sign.
• By activating the master channel control you can switch between the two
"RATE" values.
As an alternative to linear rotational movement of the slave servo, you can
programme individually adjustable control curves for the slave servo.
• To operate the mixer as a curve mixer, use the "UP/DN" button to select
the input value "CURVE": and activate the curve function with the
"L.-/+.R" input button.
• Use the "UP/DN" button to select the "MIXCURVE" setting and activate
the function by pushing the "Enter" button.
78
Figure 38
Figure 39
In the right hand half of the display you can see the currently set mix curve
as a graph. The vertical dash marks the setting of the master controller. In
the left hand half of the display you can see the details of the master and
slave channel and the programmed switch.
You can use the "UP/DN" button as described previously to select the
individual values and change them with the "L.-/+.R" button. The relationship
between the master controller and the slave channel is also displayed with
the values "IN" and "OUT". If the assigned switch has turned off the mixer,
the "OUT" display shows the setting "OFF".
• You can use the "UP/DN" button to select the first point on the mix curve
("L") and set the required value with the "L.-/+.R" button. The adjustable
value is between -100 and 100. The effect of the setting you make is
immediately visible in the mix curve on the right half of the display.
• Then use the "UP/DN" button to switch to the second point on the mix
curve ("1") and use the "L.-/+.R" button to select the desired value.
• Keep repeating this procedure until all five points on the mix curve have
been adjusted to your wishes.
• When the mixer is set to your expectations, press the "Enter" button to
save the settings. The mixer settings menu appears again in the display.
• If required you can now select a further mixer and set it in the same way.
• You can exit the mixer menu by pressing "Exit".
Figure 40
79
i) "FAILSAF" (failsafe setting)
In the failsafe function the receiver moves the servos into a position predetermined by you, as soon as no valid
transmitter signal can be recognised. This avoids that the servos extend to their end points due to incorrect impulses.
Please note that the setting is always related to the respective individual servo which is controlled by the
receiver. Mix functions which involve the control of several servos are no longer taken into account during
failsafe activation.
Setting the failsafe servo positions
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "FAILSAF" menu item and push the
"Enter" button to activate the menu item.
In the display you will see display items for the eight control functions with
the current set failsafe situation values. The receiver outlet or channel
which is currently able to be adjusted is marked with an arrow which points
downwards.
• Use the "UP/DN" button to select the desired receiver outlet for which you
wish to set the servo failsafe value.
• With the "L.-/+.R" input button you can now determine the exact position.
The adjustable value is between U/L/+/H 400 und D/R/-/L 400 depending
on the channel.
• By pressing the "Exit" button you can turn back off the failsafe setting for
the respective receiver outlet. In this case the attached servo will stay in
the last error-free recognised position when no valid signal is recognised.
• You can use the "UP/DN" button to select other channels for which you
also wish to select a fail safe position.
• When all channels are set to the desired values, press the "Enter" button
to save the settings. The function settings menu appears in the display.
For safety reasons the throttle servo moves to the idle position
even if the fail safe setting is deactivated (display "INH").
80
Figure 41
j) "MONITOR" (servo function display)
In this menu you can graphically display the servo control settings for all 8 channels and simultaneously check the
individual control functions with all mixers.
Especially with helicopter models you can easily very quickly make mixer errors for the swash plate control. In addition
there is the option to test the servos attached to the receiver in this menu, to see whether they exhibit an error at a
certain setting for the servo lever.
Show servo functions
• Call up the menu item "MDSET" in the functions setting menu.
• Use the "UP/DN" button to select the "MONITOR" menu item and push
the "Enter" button to activate the menu item.
In the display you will see display items for the eight control functions with
the respective servo positions.
The display bars reach 150% both right and left, there is a marking at
both 50% and 100%.
• Move the control stick according to the function to be tested and observe
the changes in the display. At the same time you can follow the reactions
of the servos in the model.
• By pressing the "Exit" button twice you can exit the menu again.
Figure 42
81
13.2. "MDSEL" function (model selection)
a) "MODEL" (select a model memory)
The remote control system has 8 model memories which allow you to save the data for your respective models
independently of one another.
Selection of the model memory
• Call up the menu item "MDSEL" in the functions setting menu.
• Use the "UP/DN" button to select the "MODEL" menu item and push the
"Enter" button to activate the menu item.
In the display you will see display items for the eight model memories with
the current set names.
• Use the "UP/DN" button to select the desired model memory you wish to
use for your model.
• Confirm your input using the "Enter" button. The function settings menu
appears in the display.
82
Figure 43
b) "NAME" (model name setting)
In order to be able to discern between model memories more easily it makes sense to give the memories with the
names of the corresponding models. The name can consist of a combination of up to 7 letters, numbers or special
symbols.
Setting the Model Name
• Call up the menu item "MDSEL" in the functions setting menu.
• Use the "UP/DN" button to select the "NAME" menu item and push the
"Enter" button to activate the menu item.
In the display you will see display items for the eight model memories with
the current set names.
• Use the "UP/DN" button to select the desired model memory the name of
which you wish to changes and confirm the entry by pushing the "Enter"
button.
In the left hand half of the display you will see the current model name in
the upper area. The name underneath the square brackets can be adjusted
to your requirements. To show that the first letter is currently able to be
changed, it is marked with an arrow which points downwards. In the right
half of the display you can see which letters, numbers or symbols you can
use to name the model memory.
• Use the "L.-/+.R" input button to select your first letter. The name changes
correspondingly in the square brackets.
• You can use the "UP/DN" button to switch to the second letter and change
it in the same way.
• Keep repeating this procedure until all 7 letter spaces for the name have
been adjusted to your wishes.
• Then press the "Enter" button to save the settings. The name menu
appears again in the display. If required you can now select a further
model memory and set the name in the same way.
• Press "Exit" to leave the name menu again.
Figure 44
83
c) "TYPE" (model type setting)
As there are different functions available for each of the respective model types, such as mixers or switching functions,
it is necessary to enter the right model type during programming. You can select between helicopter had motorized
model.
Important:
You can only select the model type if you have set the label "2801" as transmitter under the menu item
"STICK".
You also first call up the required model memory and can then change the model type in this memory.
Setting the model type
• Call up the menu item "MDSEL" in the functions setting menu.
• Use the "UP/DN" button to select the "TYPE" menu item and push the
"Enter" button to activate the menu item.
The display for the two model types appears in the display. The currently
set type is marked with a black border.
• With the "L.-/+.R" input button you can now switch between model types.
• Then press the "Enter" button to save the selection.
• Press the "Exit" button twice and check the operational display to see
whether the correct model type is shown.
84
Figure 45
13.3. "COPY" function (copy function)
a) "MODEL" (copy model data within the system)
For simple programming of the system you have the option of saving data from one model memory to another. This
helps you easily transfer basic settings between similar models and you only need to adjust the settings values to the
new model.
Copy model data within the system
• Call up the menu item "COPY" in the functions setting menu.
• Use the "UP/DN" button to select the "MODEL" menu item and push the
"Enter" button to activate the menu item.
In the display you will see display items for the eight model memories with
the current set names. You will see "*sel source" in the upper right of the
display, this indicates that the source memory can be selected.
• Use the "UP/DN" button to select the desired model memory you wish to
transfer data from.
• Confirm your input using the "Enter" button.
Instead of displaying "*sel source" the model memory is shown from which
the data is to be copied. You will see "*sel destin" this indicates that the
target memory can be selected.
• Use the "UP/DN" button to select the desired model memory you wish to
transfer data to.
• Confirm your input using the "Enter" button.
• Before the copy process begins, you will see an additional security query
which you will also need to confirm with the "Enter" button.
• At the end of the copy process the question appears "Replace Name?"
• If you confirm the query using the "Enter" button, the model memory name
will be copied over. If you press the "Exit" button instead, the name in the
target memory will not be replaced. The function settings menu appears
in the display.
Figure 46
85
b) "RECEIVE" (receive model data from a second remote control unit)
Along with the internal copy function, you also have the option of remotely copying the full model data from a second
type "WK 2801" remote control.
Activating the data reception
• Call up the menu item "COPY" in the functions setting menu.
• Use the "UP/DN" button to select the "RECEIVE" menu item and push
the "Enter" button to activate the menu item.
The display shows "Connect..........". As soon as the second remote
control's send function is activated, the display changes to
"Receive............".
If the data connection is created, the display of the receiving remote control
shows the eight model memories.
• Use the "UP/DN" button to select the desired model memory you wish to
transfer data to.
• Confirm your input using the "Enter" button.
• Before the copy process begins, you will see an additional security query
which you will also need to confirm with the "Enter" button.
• At the end of the copy process the question appears "Replace Name?"
• If you confirm the query using the "Enter" button, the model memory name
will be copied over. If you press the "Exit" button instead, the name in the
target memory will not be replaced. The function settings menu appears
in the display.
86
Figure 47
c) "TRANSMIT" (transmit model data to a second remote control unit)
Along with the internal copy function, you also have the option of remotely copying the full model data to a second type
"WK 2801" remote control.
Activating the data transfer
• Call up the menu item "COPY" in the functions setting menu.
• Use the "UP/DN" button to select the "TRANSMIT" menu item and push
the "Enter" button to activate the menu item.
In the display you will see display items for the eight model memories with
the current set names.
• Use the "UP/DN" button to select the desired model memory you wish to
transfer data from.
• Confirm your input using the "Enter" button.
• Before the transfer process begins, you will see an additional security
query which you will also need to confirm with the "Enter" button.
• Once the data transfer is complete, press the "Exit" button to return to the
functions menu.
Figure 48
87
d) "TRAINER" (trainer/student operation)
For safe and comfortable model aircraft training, the remote control offers a socket for a teacher-student cable (see fig.
2, pos. 26). With an optionally available cable, you can connect a second "WK 2801" remote control to your transmitter.
You can then switch between the control commands of the two units at the touch of a button (see figure 1, pos. 3).
Which control functions are allowed to be taken on by the student can be individually set at the teacher transmitter.
Setting the teacher/student function
• Call up the menu item "COPY" in the functions setting menu.
• Use the "UP/DN" button to select the "TRAINER" menu item and push
the "Enter" button to activate the menu item.
In the display you will see display items for the eight control functions with
the current enable settings ("ENB" for "ENABLE" = switched on for the
student or "DIS" for "DISABLE" = switched off for the student). The receiver
outlet or channel which is currently able to be adjusted is marked with an
arrow which points downwards.
• Use the "UP/DN" button to select the desired receiver outlet for which you
wish to change the student control option.
• With the "L.-/+.R" input button you can now enable ("ENB") or disable
("DIS") the function. The labelling of the respective switch changes from
the "ENB" setting to "DIS" or vice versa.
• You can use the "UP/DN" button to select further channels for which you
also wish to change the student control option.
• When you have changed all channel student control options to your
requirements, press the "Enter" button to save the settings. The function
settings menu appears in the display.
88
Figure 49
Please proceed as follows to operate in the teacher/student mode:
• Carry out a test flight in teacher/student mode with the training model and
trim it appropriately.
• Transfer the model data from the teacher transmitter to a free memory on
the student transmitter. Both units must contain and be set to the exact
same model settings.
• After landing, connect the teacher/student cable to the teacher remote.
• Then connect the teacher/student cable to the student remote.
• As soon as the student remote control is switched on, its display will show
the message "PC-LINK". The teacher remote control display shows the
teacher/student menu including the mode display:
If "MASTER" is shown, the teacher has complete control over the model.
If "TRAINEE" is shown, the student has control over the enabled functions.
• Switching between teacher and student is carried out by pressing a button
(see fig. 1, Pos. 3). Every time you move the button upwards, the function
is switched from teacher to student or from student to teacher.
• Before you start out, check that the teacher transmitter and the student
transmitter are set to the same models and that all control functions are
reacting correctly. When you test-switch, the middle settings of the rudders
should not change.
• Once the teacher has started the model, he/she can switch control to the
student by pressing the button and, if required, easily switch back to teacher
control just as quickly with the same button.
• To end teacher/student mode, the student transmitter is turned off and the
connector cable is unplugged.
Figure 50
89
13.4. "STICK" function (transmitter stick settings, transmitter identification)
As described previously for the receiver connection, the individual receiver outlets (channels) have specific functions
or servos assigned to them. The first four outlets have the following assignment:
Channel 1 = "ELEV" (elevator/nod servo)
Channel 2 = "AILE" (aileron/roll servo)
Channel 3 = "THRO" (throttle servo / flight controller)
Channel 4 = "RUDD" (rudder/tail servo)
The setting of the stick assignment allows you to set exactly which control stick you wish to control outlets 1 - 4. If
required you may need to exchange the control stick for throttle/pitch function.
Setting the transmitter stick function
• Select the menu item "STICK" in the function settings menu and push the
"Enter" button to activate the menu item.
In the display you will see the control stick assignment, the currently set
transmitter type and the allocation of the ID code. The arrow shown left of
the setting "STICK" indicates that this setting can be adjusted currently.
• With the "L.-/+.R" input button you can now switch between "MODE1",
"MODE2", "MODE3" and "MODE4".
90
Figure 51
Overview of the available stick allocations:
Mode 1:
Right control stick back and forwards: Throttle servo / flight controller ("THRO")
Right control stick left and right: Aileron/roll servo ("AILE")
Left control stick back and forwards: Elevator/nod servo ("ELEV")
Left control stick left and right: Rudder/ tail servo ("RUDD")
Mode 2:
Right control stick back and forwards: Elevator/nod servo ("ELEV")
Right control stick left and right: Aileron/roll servo ("AILE")
Left control stick back and forwards: Throttle servo / flight controller ("THRO")
Left control stick left and right: Rudder/ tail servo ("RUDD")
Mode 3:
Right control stick back and forwards: Throttle servo / flight controller ("THRO")
Right control stick left and right: Rudder/ tail servo ("RUDD")
Left control stick back and forwards: Elevator/nod servo ("ELEV")
Left control stick left and right: Aileron/roll servo ("AILE")
Mode 4:
Right control stick back and forwards: Elevator/nod servo ("ELEV")
Right control stick left and right: Rudder/ tail servo ("RUDD")
Left control stick back and forwards: Throttle servo / flight controller ("THRO")
Left control stick left and right: Aileron/roll servo ("AILE")
RUDD
THRO
RUDD
AILE
THRO
AILE
ELEV
ELEV
MODE1
THRO
AILE
MODE2
ELEV
AILE
MODE3
THRO
RUDD
MODE4
ELEV
RUDD
Figure 52
In addition to this setting, you have the option of switching the transmitter type and thus adjusting it to different receivers.
In the setting "2801" the remote control operates as an 8 channel transmitter, in the "2601" setting it works as a
6 channel transmitter and "2401" as a 4 channel transmitter.
Switching to a 6 or 4 channel transmitter is only possible if you have set the model type to helicopter.
91
• Use the "UP/DN" button to select the "COMPTB" setting and use the
"L.-/+.R" button to select the desired transmitter type. Depending on the
transmitter type, the binding display (see fig. 1, pos. 2) on the transmitter
will either glow red green or blue after the setting is saved.
If you have set the transmitter to 4 or 6 channels, the throttle
trimming must be set to the lowest position along with the throttle
stick itself before the motor can be activated.
Figure 53
Under the menu item "IDECODE" you have the option to set an individual transmitter code (e.g. "262104") along with
the identification code ("RANDOM").
The input value 000000 - 000009 and 123123 can not be used as these values are reserved for the factory
settings!
Before you set a manual ID value, it is required that you delete the existing ID value in the receiver memory (see the
following section).
92
• Use the "UP/DN" button to select the "IDECODE" setting and use the
"L.-/+.R" button to change the setting from Random to "SET".
• With the "L.-/+.R" button you can set the first digit of the codes and then
use the "UP/DN" button to move to the next digit.
• Keep repeating this procedure until all six digits of the code (in the example
"262104") have been set.
• Then press the "Enter" button to save the set values.
The display shows the query "ID MATCH?".
• Switch the receiver on so that the LED flashes rapidly and press the "Enter"
button again.
The binding process begins with the preset ID and "ID MATCH......" is
shown in the display.
• Once the binding process is complete the transmitter and receiver work
on the set ID. The function settings menu appears in the display.
Then switch off the receiver and then the transmitter. When you then restart
the transmitter and receiver, no further binding process will occur as the
transmitter and receiver are working with the same ID.
If you previously deleted ID values, it may occur that the
manually set ID is not yet accepted and the LED on the receiver
continues to flash rapidly when it is switched back on.
If this occurs simply repeat the manual binding procedure with
the same ID without previously deleting the receiver memory.
Figure 54
93
Deleting ID values in the receiver:
Before you can set a manual ID value, it is required that you delete the
existing ID in the receiver.
To do so prepare a short-circuit servo plug with the positive and negative
poles connected to one another.
Connect this plug to the BATT connection and attach the receiver battery to
another free servo outlet.
Switch on the receiver power supply. The LED display on the receiver now
flashes slowly and thus indicates that the ID memory has ´been deleted.
Switch the receiver off and remove the short-circuit plug.
If you run several models with a single transmitter you can set and save an individual transmitter code per
model. Thus you ensure that you do not operate a model with the "wrong" model memory. However, no
other model or remote control system in the direct vicinity may use the same ID code.
If you operate a model with a variety of different "WK 2801" transmitters, we recommend that you use the random
setting.
If you operate a model with a single transmitter, we also recommend that you choose the "RANDOM" option at the
"IDCODES" setting.
Figure 55
94
13.5. "INPUT" function (control signaller allocation for unassigned channels)
When allocating control signals you have the option of allocating outlets which are not required for the helicopter menu
to other controls. This allows you to switch and control additional servos or electronic switching componentry.
Setting the control signaller allocation
• Select the menu item "INPUT" in the function settings menu and push the
"Enter" button to activate the menu item.
The three unassigned receiver outlets appear in the display "GEAR",
"AUX2" and "AUX3".
• You can use the "UP/DN" button to select the desired receiver outlet and
assign the desired control signaller with the "L.-/+.R" button. The setting
value "INH" switches off the respective receiver outlet.
• Then press the "Enter" button to save the set values. The function settings
menu appears in the display.
Figure 56
95
13.6. "SWASH" function (swash plate settings)
Depending on the mechanical construction of the helicopter, the servos for
the roll and pitch or for the roll, nod and pitch function must be electronically
mixed in many different ways. In order to be able to correctly control the
different swash plate linkages, the swash plate setting 3 offers different
selection options:
• Pitch control with one servo ("NORM") doesn't require an electronic mixer.
• In control with two servos (180°) the pitch and the roll servo take on the
swash plate control. The linkage points of the swash plate are placed at
180° to one another (see sketch A).
• In control with three servos (120°) the pitch, roll and nod servos take on
the swash plate control. The linkage points of the swash plate are placed
at 120° to one another (see sketch B).
Setting the swash plate control
• Select the menu item "SWASH" in the function settings menu and push
the "Enter" button to activate the menu item.
The display shows the currently set model memory (e.g. "MODEL3") In
the pointed brackets the currently set swash plate control setting is
displayed.
• With the "UP/DN" button you can select the desired swash plate control
using the right-pointing arrow and push the "Enter" button to confirm.
• The function settings menu appears in the display.
A
B
PIT
(AUX1)
PIT
(AUX1)
2 Servos 180°
AILE
3 Servos 120°
AILE
ELEV
Figure 57
96
Figure 58
13.7. "STEP" function (trim setting)
The remote control unit has four trim buttons (see fig 1, pos 8, 9, 16 and 17), which you can use to fine tune the central
position for servos or rudders in flight. Unlike the usual trim sliders which work mechanically, the remote control uses
electronic digital trimming. Depending on which direction the trim button is moved, the middle value of the corresponding
control channel is moved. The speed at which the adjustments should be carried out can be custom-set.
The current setting of the digital trim is shown in the operational display by
four thin bar diagrams (see also fig. 5, pos 8-11).
Checking and setting the trim speed
• Select the menu item "STEP" in the function settings menu and push the
"Enter" button to activate the menu item.
In the display you will see display items for the eight model memories with
the current set names. You have the option of setting the trimming for
each model memory separately or simply to enter a common value for all
memories under the "ALL" setting.
• Use the "UP/DN" button to select the desired model memory and push
the "Enter" button to confirm.
The selected model memory appears in the display with the four trimmable
control functions.
• Use the "UP/DN" button to select the desired control function and use the
"L.-/+.R" button to select your desired trim speed. The adjustable value is
between 1 and 15. The larger the value the bigger the servo movement
per button movement.
• Keep repeating the procedure until you have set the trim speed for all
control functions.
• When the required trim speed is set for all control functions, press the
"Enter" button to save the settings.
• If you have changed the trim values for all model memories you need to
confirm the implementation of the change. The function settings menu
appears in the display.
Caution!
Sensitive trimming is only possible if the trim speed is not set
too high. This does however make the trimming process take a
little longer. Thus check the speed in a test flight to see whether
the speed is sufficient for your requirements.
Figure 59
97
13.8. "DISP" function (display settings, range test)
Optimal legibility of the display can be achieved with the adjustable screen contrast. In addition there is the option of
switching the display background lighting off and thus save energy on a sunny day when you are using it outside. You
can switch the lighting back on when you use the unit indoors again.
In addition this menu allows you to carry out a range test with reduced transmitter power.
Setting up the display
• Select the menu item "DISP" in the function settings menu and push the
"Enter" button to activate the menu item.
The symbols for the LC display appear as does the menu item for the
range test. The square brackets at the upper right of the display contain
the version number of the software. The arrow shown left of the setting
"LCD CON" indicates that this setting can be adjusted currently.
• Use the "L.-/+.R" input button to set the desired contrast value. The
adjustable value is between 45 and 63, the factory setting is 52.
• Once you have used the "UP/DN" button to switch to the "LCD LED"
setting, you can use the "L.-/+.R" button to switch the background lighting
on or off.
• When you have made the required display settings, press the "Enter"
button to save your settings. The function settings menu appears in the
display.
Figure 60
If you would like to carry out a range test, call up the "DISP" menu again
and select the menu item called "RANGE TEST".
• Activate the function using the "L.-/+.R" button and get an assistant to
hold the model, then check the range by moving slowly away from the
operationally ready model. Up to a distance of at least 30 m all functions
should be perfectly controllable (even with running motor).
• To end the range test simply press the "Exit" button. The function settings
menu appears in the display.
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Figure 61
13.9. "ALARM" function (alarm settings)
This menu allows you the save an individual timed period for each model and thus receive warning of approaching fuel
or rechargeable battery depletion. In addition you can set the minimal voltage value for the transmitter battery at which
point an approaching lack of transmitter power is indicated to you. You can also set the button tone signal.
Setting the timer and alarm values
• Select the menu item "ALARM" in the function settings menu and push
the "Enter" button to activate the menu item.
The display now shows the timer display for the currently selected model
memory as well as the voltage limit for the transmitter rechargeable battery
and the setting for the button tone. The arrow shown left of the timer
indicates that this setting can be adjusted currently.
• Use the "L.-/+.R" input button to set the desired time period. The adjustable
value is between "0:00" and "59:50" (59 minutes and 50 seconds).
In the operational display the timer can be started and stopped with the
"+R" button. With the "L.-" button you can reset the timer display to "0:00".
Once the time period is complete, a warning tone is emitted and the timer
symbol in the display flashes.
• Once you have used the "UP/DN" button to switch to the "BATTY" setting,
you can use the "L.-/+.R" button to set the voltage value at which the
remote control should warn the user of low voltage supply. If the available
voltage goes below the threshold a signal tone is sounded and the voltage
supply symbol flashes (see figure 5, Pos. 5). When using 8 Mignon
rechargeable batteries, we recommend you set a value of 7.8 to 8.0 V.
• Then use the "UP/DN" button to select the "BUZER" setting and use the
"L.-/+.R" button to select the desired button signal tone. The adjustable
value is between 50 and 100. The smaller the value the higher the button
tone. The recommended settings value is 68.
• If you prefer not to have a button tone signal, use the "UP/DN" button to
switch to the "ACT" function and use the "L.-/+.R" button to deactivate the
button tone ("INH"). The alarm sounds remain audible as before.
• When you have made all the required alarm settings, press the "Enter"
button to save your settings. The function settings menu appears in the
display.
Figure 62
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