2. Intended Use ....................................................................................................................................................... 5
4. Scope of Delivery ................................................................................................................................................ 6
5. Explanation of Symbols ....................................................................................................................................... 7
6. Safety Information ............................................................................................................................................... 7
7. Notes on Batteries and Rechargeable Batteries .............................................................................................. 10
8. Final Assembly of the QuadroCopter ................................................................................................................ 12
9. Checking the Configuration ............................................................................................................................... 18
10. Before Each Use ............................................................................................................................................... 25
a) General Information ...................................................................................................................................... 7
b) Before Operation ........................................................................................................................................... 8
c) During Operation ........................................................................................................................................... 8
a) Transmitter .................................................................................................................................................. 10
b) Flight Battery ............................................................................................................................................... 11
a) Assembly of the Landing Legs .................................................................................................................... 12
b) Assembly of the Rotors ............................................................................................................................... 14
c) Connecting the Receiver ............................................................................................................................. 15
d) Installing the Flight Battery ..........................................................................................................................16
e) Assembly of the Upper Cover Hood ........................................................................................................... 17
a) General Information .................................................................................................................................... 18
b) Programming of Transmitter Channels (General) ...................................................................................... 19
c) Programming of “Throttle” ........................................................................................................................... 20
d) Programming of “Yaw” ................................................................................................................................ 20
e) Programming of “Pitch” ............................................................................................................................... 20
f) Programming of “Roll” ................................................................................................................................. 21
g) Setting the Flight Mode ............................................................................................................................... 22
h) Configuration with PC Software .................................................................................................................. 23
i) Possible Flight Modes ................................................................................................................................. 24
a) Checking the Connections .......................................................................................................................... 25
b) Checking Movable Parts ............................................................................................................................. 25
c) Adjustment of the Neutral Position ............................................................................................................. 25
a) Motor Protection .......................................................................................................................................... 27
b) Emergency Landing .................................................................................................................................... 27
c) Low Voltage Monitoring............................................................................................................................... 27
d) Finder function ............................................................................................................................................ 27
Page
2
Page
12. LED Displays ..................................................................................................................................................... 28
a) Ready to Fly ................................................................................................................................................ 28
b) Starting the QuadroCopter .......................................................................................................................... 28
c) Configuration Mode ..................................................................................................................................... 28
e) Adjustment of the Neutral Position ............................................................................................................. 28
f) Impaired Radio Link before Take-Off .......................................................................................................... 28
g) Impaired Radio Link during Flight Operation .............................................................................................. 29
h) Emergency Landing Function ..................................................................................................................... 29
i) Low Voltage Monitoring............................................................................................................................... 29
a) Connection Contacts or Jumper of the Combiboard .................................................................................. 30
b) Composite Signal Output ............................................................................................................................ 31
c) LED Status Display ..................................................................................................................................... 31
a) General Information .................................................................................................................................... 34
b) Selecting the Light Mode ............................................................................................................................ 36
c) Selecting the RC Input ................................................................................................................................ 37
d) Connecting the LED Strips/LEDs................................................................................................................ 38
15. Combiboard PC Connection: ............................................................................................................................ 40
16. Information for First Take-Off............................................................................................................................. 41
a) General Handling ........................................................................................................................................ 41
b) Starting the Motor ........................................................................................................................................ 41
c) Cutting the Motor ......................................................................................................................................... 41
g) Roll .............................................................................................................................................................. 43
17. The First Flight................................................................................................................................................... 44
18. Maintenance, Care and Repair ......................................................................................................................... 45
a) Regular Cleaning ........................................................................................................................................ 45
b) Replacing the Rotors................................................................................................................................... 45
c) Replacing a Motor ....................................................................................................................................... 45
d) Replacing a Radial Arm .............................................................................................................................. 46
e) Replacing the Complete Frame .................................................................................................................. 46
f) Replacing the Stabiliser Plate ..................................................................................................................... 46
a) General Information .................................................................................................................................... 47
b) Batteries and Rechargeable Batteries ........................................................................................................47
20. Technical Data ................................................................................................................................................... 48
3
1.Introduction
Dear Customer,
Thank you for purchasing this product.
This product complies with the applicable statutory, national and European specifications.
To maintain this status and to ensure safe operation, you as the user must observe these operating instructions!
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 any
third party.
Therefore, retain these operating instructions for reference!
All company names and product names are trademarks of their respective owners. All rights reserved.
In case of any technical questions, 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
Mon to Fri 8.00 am -12.00 pm, 1.00 pm - 5.00 pm
4
2.Intended Use
The “QuadroCopter 650 ARF” is a flight model; solely designed for private use in the model making area and the
operating times associated with this.
This system is not suitable for other types of use. Any use other than the one described above may damage the
product. Moreover, it would involve dangers such as short-circuit, fire, electric shock, etc. Observe the safety instructions under all circumstances! The product must not get damp or wet!
The product is not a toy and should be kept out of reach of children under 14 years of age.
Observe all safety notes in these operating instructions. They contain important information regarding the
handling of the product.
You alone are responsible for the safe operation of the model! The chassis is assembled ready for use.
3.Product Description
The electric flight model “QuadroCopter 650 ARF” is pre-assembled as far as possible. In the professional field, such
flight devices are already used for the most diverse of tasks. The latest micro processor controlled electronics with
position control and acceleration sensor stabilise the QuadroCopter.
High quality brushless DC motors paired with a specially developed drive enable long and powerful flight operation
while still providing reserve for transporting loads such as cameras, etc. The novel steering and the electronic selfstabilisation result in excellent flight handling characteristics. Different flying programmes ensure that both beginners
and experts will be able to have their fun.
The QuadroCopter can be used both indoors and outdoors. The in-built electronic controls can balance out small
undesired changes to the flight altitude, but cannot remove them completely. The QuadroCopter weighs relatively little
and this is sensitive to wind. Therefore, ideal flying conditions are complete lack of wind to very gentle and even wind.
The lightweight aluminium designer frame and synthetic components are sturdy and enable excellent flight handling
characteristics. The frame is collapsible and therefore space-saving and easy to transport. The designer frame contains the complete set of electronics and has space for expansion plates. The grid construction makes for good
stability and good protection of the electronics at a low weight.
Due to its construction, the QuadroCopter is designed for experienced model helicopter pilots who do not just want to
carry out helicopter-like, but also sensational moves.
However, this extremely manoeuvrable model is also suitable for beginners! However, before the first flight, we recommend that beginners follow an appropriate training program in a flight simulator for helicopters and/or seek active
assistance from an experienced model helicopter pilot.
The model can be expanded by additional electronics (expansion interface available on the control unit) and the
mounting of several mechanisms on the platform mount fixture on the underside of the grid frame
5
4.Scope of Delivery
Figure 1
1) Pre-assembled QuadroCopter
2) Hook and loop tapes (4 pcs)
3) Screws (8 pcs)
4) Rotors 2x left
5) Rotors 2x right
6) Landing legs (4 pcs)
7) Landing skid end caps (4 pcs)
8) Rubber sleeves (4 pcs)
9) Landing skids (2 pcs)
10) Rotor tips (4 pcs)
11) Silicon hoses (4 pcs)
12) End caps for radial arms (4 pcs)
Not displayed: Operating instruction in German (manual), operat-
ing instructions in English, French and Dutch on CD, aerial tubes,
jumpers (2) high-current plugs for battery connection, hook and
loop tapes for rechargeable battery installation (2) circlips (4) for
rotor tips, self-adhesive rubber buffers (4) and rubber for hood fastening.
The spare parts list is located on our website www.conrad.com in the download section for the respective
product. You can also order the replacement parts list by phone. For contact information, please refer to
the top of these instructions in the chapter “Introduction”.
The following components not included in delivery are required for assembly and operation:
Assembly: Soldering iron and the necessary kit.
Operation:To operate the model, a simple 6 channel remote control system, a 3-cell LiPo flight battery with a mini-
mum capacity of 2500 mAh and a discharge rate of 25 C, as well as a compatible LiPo charging device with LiPo
balance charger are required.
See our catalogues or our website at www.conrad.com for tried and tested accessories.
6
5.Explanation of Symbols
The symbol with the exclamation mark points out particular dangers associated with handling, function or
operation.
The “arrow” symbol indicates special advice and operating information.
6.Safety Information
In case of damage caused by non-compliance with these safety instructions, the warranty/guarantee will become void. We do not assume any responsibility for consequential damage!
We do not assume any 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 void.
Normal wear caused during normal operation or a crash (e.g. broken rotors or frame) are excluded from
the warranty and guarantee.
Dear customer, these safety instructions are not only for the protection of the product but also for your own
safety and that of other people. 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 persons. 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, inquire about whether the operation of the model is covered before operating it.
Please note: In some EU countries, you are required to have insurance for any flying models!
• The unauthorized conversion and/or modification of the product or its components is inadmissible 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 become damp or wet. As delicate control electronics are used in the QuadroCopter which are
also sensitive to temperature fluctuations and are optimised for a particular temperature range, operation below
10°C is to be avoided.
• If you do not have sufficient knowledge yet of how to fly remote-controlled helicopters, please contact an experi-
enced model sportsman or a model construction club. Alternatively, it is recommended that you practice on a suitable flight simulator before first use.
7
• Do not leave packaging material unattended. It may become dangerous playing material for children!
• The product has been designed for operation in an ambient temperature of between 10°C und 40°C and under
normal air humidity conditions in Central Europe in dry weather. Operation under different conditions can lead to
changed (material) properties and damage to the product as a result.
• The maximum permissible take-off weight of 2,000g must not be exceeded. A take-off weight in excess of this could
lead to damage to the rotors during operation and may cause a crash!
• Should questions arise that are not answered by this operating manual, contact us (for contact information, see
Chapter 1) or another expert.
b) Before Operation
• Observe the operating instructions for the remote control system used by you.
• Regularly check the functional safety of your model and of the remote control system. Watch out for visible damage
such as defective plug connections or damaged cables.
• All moving parts of the model must run smoothly, but should not have any play in their bearings.
• Check before each operation the correct and secure position of the rotors.
• Charge the flight battery, which is necessary for operation, as well as the rechargeable battery that may be inserted
in the remote control according the manufacturer’s instructions.
• If batteries are used as a transmitter power supply, make sure that they have sufficient remaining capacity (battery
checker). If the batteries are empty, always replace the complete set, never individual cells only.
• Always switch on the transmitter first. Please ensure that when you turn on the transmitter the throttle control is set
to the lowest setting (motors off)! Then the flight battery of the model may be connected. Otherwise, unexpected
reactions of the model may occur and the rotors might run unintentionally!
• When the rotors are running, make sure that neither objects nor body parts are in the rotating and suction area of the
rotors.
c) During Operation
• Do not take any risks when operating the model. Your own safety and that of your environment is solely down to you
being responsible when dealing with the model.
• Improper operation can cause serious damage to people and property! Therefore make sure to keep a sufficiently
safe distance to persons, animals or objects during operation.
• Select suitable ground to operate your model.
• Fly your model only if your ability to respond is unrestricted. The influence of tiredness, alcohol or medication can
cause incorrect responses.
• Do not direct your model towards spectators or towards yourself.
• Motor, flight control system and flight battery may heat up during operation of the model. For this reason, please take
a break of 10 to 15 minutes after flying for a maximum of 20 minutes before recharging the flight battery or restarting
with a possible spare battery. The drive motors must have cooled down to ambient temperature.
• Never switch off the remote control (transmitter) while the model is in use. After landing, always disconnect the flight
battery first or switch the model off. Only then may the remote control be switched off.
• In case of a defect or a malfunction, remove the problem before using the model again.
8
• Never expose your model or the remote control to direct sunlight or excessive heat for an extended period of time.
• In the case of a severe crash (e.g. from a high altitude). the electric gyro sensors can be damaged and/or misadjusted.
Therefore, full functionality must be tested before flying again without fail. We recommend adjustment to the neutral
position.
• In the event of a crash, the throttle should be immediately reduced to zero. Rotating rotors may be damaged if they
come into contact with obstacles e.g. overcharging. Before flying again, these should be checked for possible tears
or breakages!
• To avoid damage to the QuadroCopter through crashing due to low voltage of the rechargeable battery through total
discharge, we recommend that you respect the low voltage light signals without fail. As the integrated LEDs only
flash in one direction, we recommend that you additionally fit LiPo Saver order no. 230327. The Lipo Saver forewarns you of impending low voltage by light signal. Place the Lipo Saver on the appropriate place of the QuadroCopter.
As an alternative, the integrated combiboard can also be used to display undervoltage via the connected LEDs. For
this, observe the notes in these operating instructions, chapter 14 “Light & Sound Function”
9
7.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. For LiPo/LiIon rechargeable batteries in particular, various regulations must be observed under any circumstances due to their high energy content (in
comparison to conventional NiCd or NiMH rechargeable batteries), because otherwise there is danger of
explosion and fire.
The QuadroCopter is delivered without remote control, batteries and charging device. Nevertheless, we
are including extensive information on handling batteries for safety reasons. Also observe all documents
and information included with the accessories used (e.g. remote control, rechargeable batteries, charger)!
a) Transmitter
• Keep batteries/rechargeable batteries out of the reach of children.
• Do not leave any batteries/rechargeable batteries lying around openly. There is a risk of batteries being swallowed
by children or pets. If swallowed, consult a doctor immediately!
• Batteries/rechargeable batteries must never be short-circuited, disassembled or thrown into fire. There is a danger
of explosion!
• Leaking or damaged batteries/rechargeable batteries can cause chemical burns to skin when touched without the
use of adequate protective gloves.
• Do not recharge normal batteries. There is a risk of fire and explosion! Only charge rechargeable batteries intended
for this purpose. Use suitable battery chargers.
• When inserting batteries/rechargeable batteries or when connecting a battery pack observe correct polarity
(observe plus/+ and minus/-).
• If the device is not used for an extended 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.
• Recharge the NiCd or NiMH rechargeable batteries about every 3 months, as otherwise there may be a total dis-
charge due to self-discharge, which renders the rechargeable batteries useless.
• Always replace the entire set of batteries or rechargeable batteries. Never mix fully charged batteries/rechargeable
batteries with partially discharged ones. Always use batteries or rechargeable batteries of the same type and manufacturer.
• Never mix batteries and rechargeable batteries!
10
b) Flight Battery
Attention!
After the flight, the LiPo flight battery must be disconnected from the electronics system of the QuadroCopter.
Do not leave the LiPo flight battery connected to the electronic system when you do not use it (e.g. during
transport or storage). Otherwise the LiPo flight battery may be fully discharged. This would destroy it and
render it unusable! There is also a danger of malfunction due to interferences. The rotors could start up
inadvertently and cause damage or injury.
• Never charge the LiPo flight battery immediately after use. Always leave the LiPo flight battery to cool off first (at
least 10-15 minutes).
• To charge LiPo rechargeable batteries, always use a LiPo charger and a LiPo equalizer / balancer.
• Only charge intact and undamaged batteries. If the external insulation of the rechargeable battery is damaged or if
the rechargeable battery is deformed or bloated, it must not be charged. In this case there is serious danger of fire
and explosion!
• Never damage the exterior of a LiPo flight battery. Never cut the covering foil. Never stab any LiPo flight batteries
with pointed objects. There is a risk of fire and explosion!
• Remove the LiPo flight battery that is to be charged from the model and place it on a fire-proof support. Keep a
distance to flammable objects.
• As the charger and the rechargeable LiPo flight battery both heat up during the charging procedure, it is necessary
to ensure sufficient ventilation. Never cover the charger or the LiPo flight battery! Of course, this also applies for all
other chargers and rechargeable batteries.
• Never leave LiPo batteries unattended while charging them.
• Disconnect the LiPo flight battery from the charger when it is fully charged.
• Chargers may only be operated in dry rooms. The charger and the LiPo flight battery must not get damp or wet.
There is danger to life from electric shock. There is also the risk of fire or explosion by the rechargeable
battery. Rechargeable LiPo batteries in particular are very susceptible to moisture due to the chemicals
they contain! Do not expose the charger or LiPo flight battery to high/low temperatures or to direct solar
radiation. When handling LiPo batteries, observe the special safety notices of the battery manufacturer.
11
8.Final Assembly of the QuadroCopter
a) Assembly of the Landing Legs
Attach one self-adhesive rubber buffer (2) each to
the four ends of the chassis reinforcement plate
(1) as displayed in figure 2a, item “A”. These rubber buffers are used as stop buffers for the radial
arm (3).
Install the end pieces (4) to the four radial arms (3)
as displayed in figure 2a, item “B” and let the end
pieces catch in the locks.
Completely extend the four radial arms (3) and let
them catch in the locks (5), see figure 2a, item “C”.
Wind the hook and loop tapes (6) firmly around the
radial arm, see figure 2a, item “D”. The red hook
and loop tape must be installed on the radial arm
with a “direction arrow” and thus additionally indicates the “front” of the Quadrocopter.
By installing the rubber buffers (figure 2a, item “A”) and the hook and loop tapes (figure 2a, item “D”), the
connection between radial arms and body is additionally stabilised. At the same time, this type of attachment is sufficiently elastic for dampening harder landings. The measures shown also improve flight characteristics.
Place the Quadrocopter upside-down on a suitable
basis. Install the four landing legs (1) on the bottom of the chassis (2) as indicated in figure 2b. For
this purpose, use the eight screws from the delivery.
The bores in the plastic hood of the chassis must
be carefully drilled with a small drill before installation.
During installation, observe hat the landing legs
have an “upside” on the outsides and a “downside”
on the opposite side, where the hole for the attachment screw is supposed to go.
Figure 2a
12
Figure 2b
Assemble the four rubber sleeves (1) in the landing leg holes (2). Then push the landing skids (3)
on the rubber sleeves centrally (1).
Now slide the short silicon hoses (4) onto the landing skids (3) from the outside to the rubber sleeves
(1). The rubber sleeves prevent the landing skids
from slipping.
Slide on one end cap (5) each onto the ends of the
landing skids (3).
For normal flight operation, the indicated type of
skid assembly is fully sufficient. For hard flight operation, we recommend additionally securing the
skids and rubber sleeves with a few drops of
superglue.
Optional use of the “QuadroCopter 450” landing legs:
Instead of the landing gear used for the “QuadroCopter 650”, the landing legs of the “QuadroCopter 450”
may also be used. They are not included with the delivery of the “QuadroCopter 650”, but can be ordered
as a spare part (see spare part list of “QuadroCopter 450”).
Figure 2d shows the landing legs of the “QuadroCopter 450”.
Extend the landing legs (1) into flying position. The
retaining clips (2) must catch clearly noticeably in
the slots (3).
For folding in, slightly push the retaining clips (2)
into the slots (3) with a small screw driver in order
to avoid breaking the plastic parts.
A red direction indicator is mounted to one of the
landing legs. This direction indicator should always
be considered as “forwards” when flying.
Figure 2c
Figure 2d
In harder landings, the landing legs will fold in. This is normal and desired. Should you wish to avoid this
effect or if you no longer wish to fold away the landing legs for transportation, you can also permanently
affix the landing legs using superglue.
13
b) Assembly of the Rotors
The rotating direction of the rotors can be seen in the adjacent figure (bird’s eye view). The arrow on the radial arm is
to be used as the indication for the direction of the model and is deemed to be “front”.
Attention!
As the motors are pre-assembled, the
rotating direction of the rotors on the
basis of the flight direction should be
carefully observed (figure 3)!
The rotors in the centre line (1) turn clockwise (right
rotating) and must be marked with the inscription
“RIGHT”.
The rotors on the cross axis (2) turn anticlockwise
(left rotating) and must be marked with the inscription “LEFT”.
The arrow at the radial arm (3) indicates “front”.
Attention!
If the rotors are not installed as described, the programmed rotating directions will no longer be in line with
the rotating directions of the rotors. The QuadroCopter is therefore no longer able to fly and can no longer
be operated! Loss of guarantee/warranty!
Rotors and motor shafts are provided with a hexagonal bolt (3).
Place the rotors (1) on the motor shafts (3) so that
they lock into place in the hexagonal bolt. Observe
the indication of “RIGHT” and “LEFT” on the rotors
(2).
Now insert one of the provided spring washers (4)
at a time between the rotor and rotor tip (5), as
otherwise the rotors may become loose during
flight.
Tightly screw the rotor tips to the motor shafts using a small pen or screw driver.
Figure 3
14
Attention!
Tightening the screws too much can damage the motors. The shafts may tear or be pulled from the
bearings. The motors operate sluggishly, which may have a negative effect on the flight characteristics.
Therefore, please verify that all of the rotors can turn easily after tightening the rotors. The snap ring shown
in figure 4, item 6, on the underside of the motors must be able to move and must not jam.
Please ensure before each operation that the rotors are firmly screwed in place on the motors. It is recommended that you are careful when handling work tools.
Figure 4
c) Connecting the Receiver
The receiver is connected to the “X13” connection socket of the combiboard (1). A suitable connection cable (2) is
supplied with QuadroCopter. The connection socket “X13” has 10 contacts that are numbered from the right to the left.
Contact 10 is on the left, contact 1 on the right.
The contacts are assigned as follows:
R41
X15
R43
1
LD2
Figure 5
Contact 10 = Channel 1
Contact 9 = Channel 2
Contact 8 = Channel 3
Contact 7 = Channel 4
Contact 6 = Channel 5
Contact 5 = Channel 6
Contact 4 = Channel 7
Contact 3 = Channel 8
Contact 2 = 5 V/DC/Plus (+)
+
PAD1
X14
-
PAD2
C18
C19
Q2
D1
10
X13
C4
R40
C17
LD1
R42
IC3
Contact 1 = GND/Minus (-)
The signals of the 8 inputs (channels 1 – 8) are measured and processed by the composite signal converter. All
available signals are combined into a composite signal pursuant to the specifications for RC remote control systems
(pulse width between 1 and 2 ms). Due to measuring of the signals and signal processing, there will be a delay of one
frame length. However, this has no effect during operation and is therefore only mentioned for the sake of completeness.
The measured servo signals may appear in any order, parallel, in sequence or overlapping. There is no limitation, so
that the composite signal converter can be used for all common systems. A synch break between the different signals
is also not required.
For the receiver’s power supply, it is sufficient to connect the contacts 1 (minus/-) and 2 (plus/+) to a single servo
connection cable.
Important!
Observe that the composite signal converter are assigned without gaps! In a 6-channel system, this means
inputs 1 - 6 and not 1 - 4 and then 6 and 7. With this assignment, the electronics would not recognised
channels 6 and 7!
Due to the many remote control receiver sizes and builds on the market, we cannot give any concrete
installation notes for the receiver. Depending on the receiver used, you may either install it between the
PCBs in the grid frame of on the reinforcement plate.
If the PCBs in the grid frame must be repositioned for installation of the receiver, we recommend installing
the main PCB of the gyro precisely at the centre for best flight characteristics (it is located on the small,
protruding PCB).
R21
R22
X6
R21
X6
15
d) Installing the Flight Battery
The flight battery is not included. Take the following steps to install the flight battery:
Solder the supplied high power loading system to the connecting cable of the rechargeable battery. Always ensure
correct polarity.
The red electronics system cable of the QuadroCopter must be connected to the positive cable of the rechargeable
battery and the black cable to the negative cable of the rechargeable battery.
Install the rechargeable battery (1) in the frame (2)
and attach it with hook and loop tapes (3).
In addition to the indicated hook and loop tape, also
attach a strip of hook and loop tape to the surface
of the battery (4 - as supplied) to prevent it from
slipping forwards or backwards. The connecting
cables can also be fixed under the hook and loop
tape (3) as shown in the figure.
The rechargeable battery must be placed in the
centre so that the QuadroCopter is not tailheavy, top-heavy or side-heavy.
The reinforcement plate of the chassis (2) has a
bore intended for an aerial tube (5). You can use
the aerial tube to guide a receiver aerial outside.
The upper covering hood also has a hole in this
position.
The QuadroCopter’s electronics system has a safety device to prevent inadvertent engine start-up. When contact is
made with the rechargeable battery although the transmitter is not switched on or the speed/pitch control stick was not
set to zero, the control electronics in the model will not cause the engines to start.
When the transmitter is switched on and the speed/pitch control stick is set to zero once, the control electronics in the
model clears normal operating state.
Caution:
To prevent inadvertent engine start-up if the safety device fails, the transmitter should be switched on. The
speed/pitch control stick must be set to zero so that no acceleration command is sent.
Figure 6
16
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