User manual

5Safety notices
group. Pilots standing off to themselves not only en-
danger their own models but those of others as well.
However, when 2 or more pilots using 2.4 GHz remote
control systems are closer than 5 m to one another
this can lead to return channel overdrive which, in
turn, will trigger a range warning much too early.
Increase your distance between one another until the
range warning ceases.
Pre-start checks
Before switching the receiver on, be sure the throttle
control is at its Stop/Idle position.
Always switch the transmitter on first
and then the receiver.
Always switch the receiver off first
and then the transmitter.
If this sequence is not maintained, such that the
receiver is still switched on when the corresponding
transmitter is switched to “OFF”, then the receiver
may respond to other transmitters or general radio
frequency noise. This can cause the model to execute
uncontrolled operations that may cause personal
injuries and/or property damage.
In particular, for models equipped with a mechanical
gyro:
before switching off the receiver, disconnect the
model’s power supply to prevent the motor from rev-
ving up unintentionally.
The residual spin of a gyro often produces so
much voltage that the receiver may falsely in-
terpret a throttle signal! This will then cause the
motor to start up unexpectedly.
Range test
Perform checks for proper operation and range before
every session. Secure the model adequately in place
and ensure that no one is in front of the model.
Perform a complete functional test on the ground and
execute a complete simulated flight to exclude the
possibility of system faults or problems with the mod-
el’s programming. When doing this, be sure to follow
the notices provided on pages 91 and 99.
Never operate the transmitter in Model mode, i.e.
for flying or driving, without an antenna. Be sure the
antenna is firmly seated in its socket.
Operating a winged aircraft, helicopter, ship or car
Never fly over spectators or other pilots. Never en-
danger humans or animals. Never fly in the vicinity of
high-voltage wires. Do not operate the model in the
vicinity of sluice locks or where real boats or ships are
operating. Do not operate a model on public streets or
highways, paths or plazas, etc.
Never switch the transmitter off whilst operating
a model! If this should happen accidentally, keep
your nerve and wait until the transmitter screen
is entirely blank, i. e. until the transmitter has
shut down completely; this takes at least three
seconds. Do not switch your transmitter on again
until this has occurred. If you neglect this, there is
a risk that the transmitter will “hang” immediately
after being switched on, and you will lose control
of the model. In this case your only recourse is to
switch the transmitter off again, allow it to shut
down completely, and then switch on once more
after the correct interval.
Aero-towing
When operating a powered tug, ensure that the
receiving systems in the two models are always at
least 50 cm apart. We recommend the use of satellite
receivers in such situations. If you neglect this, there
is a chance of interference from the downlink channel.
Monitoring transmitter and receiver batteries
You must stop running the model to recharge the
transmitter’s battery no later than when low transmit-
ter battery voltage triggers the “Batt must be re-
charged!!” display and acoustic signal.
ble, it is essential to substitute longer aerials for the
standard ones (approx. 145 mm long) fitted to HoTT
receiver(s).
The orientation of the aerial(s) is not critical, but it is
advantageous to install one receiver aerial in a verti-
cal – upright – position in the model. If your receiver
is a Diversity type – two aerials – the active tip of the
second aerial should be positioned at 90 ° to the tip of
the first aerial, and ideally the distance between the
two tips should be greater than 125 mm.
Servo installation
Always mount servos with the provided rubber vi-
bration-damper parts. Only in this manner can these
parts be protected against excessively hard vibra-
tions.
Installing control rods
Control rods must be installed such that they operate
freely and smoothly. It is particularly important that
all rudder levers are able to move to their full limits,
i.e. not otherwise mechanically blocked.
In order to be able to stop a running motor at any
time, control rods must be adjusted such that the
carburetor tap is completely closed when the joystick
and trim lever are brought into their end idle position.
Pay attention that no metal parts, e. g. as a result of
rudder actuation, vibration, rotating parts, etc., rub
against one another. Metal-to-metal contact causes
electrical “noise” which can interfere with the correct
operation of the receiver.
Transmitter antenna orientation
Transmission field strength is minimal in an imaginary
line extending straight out from the end of the trans-
mitter’s antenna. This means that “pointing” the trans-
mitter’s antenna directly toward the model will not
produce good reception but rather degrade reception.
When multiple remote controls are operating simulta-
neously, pilots should position themselves in a loose