11
WARNING!
Always make sure that power is applied to the transmitter BEFORE applying
power to the receiver and servos, and the Tx throttle stick is at minimum (idle) position.
Failure to do so could result in the model becoming uncontrollable and cause a safety hazard.
During all pre-fl ight preparations, do not stand the Tx upright on the ground. Carefully lay the Tx on its back
on the ground to prevent it from falling over and possibly dislodging the throttle stick which would create a
safety hazard. Make sure all devices are properly mounted inside the model, and all wiring connections are
solid to prevent them from easily becoming dislodged during normal fl ight. It’s best to check the system with
the propeller removed from the aircraft.
1.
Once all connections are made, check the general operation of the radio and all other components
before attempting a fl ight.
2.
Move the Tx throttle stick to the minimum (idle) position.
3.
Turn on the Tx, and then the Rx.
4.
Make sure all controls are operating in the proper direction. If any servo is turning in the wrong direction,
change the reverse setting for that particular channel.
5.
For airplanes, with both sticks at center position, move the trim levers for the aileron, elevator, and
rudder channels so each respective control surface is perfectly aligned with the main surface. For
example: when the aileron trim lever is in the center position, it’s best that the trailing edge of the
aileron is aligned with the trailing edge of the wing itself (not above or below the wing’s trailing edge).
6.
Make sure that movements of the throttle stick result in an equal adjustment of the throttle in the model.
Depending on whether the model is electric or combustion powered:
a. Electric: confi rm that when the throttle stick is at maximum position, the ESC gives the appropriate
indications (LED and/or beeps) for full forward fl ight. And, when the throttle stick is at minimum
position, the ESC gives the appropriate indications for “off” or no motor rotation.
b. Combustion: confi rm that when the throttle stick is at maximum position, the mechanical linkage
allows the engine to be at full throttle. And, when the throttle stick is at minimum position and the
throttle trim lever is moved to minimum position, the engine stops completely.
7.
Perform a “range check” to confi rm the safe operating distance from the Tx to the Rx. With the assistance
of another person, place the aircraft on the ground and walk 100 feet (30m) away from the model. With
the Tx pointed directly at the model, move the controls and confi rm all surfaces move appropriately.
8.
Anytime power is to be removed from the radio system, it’s important to shut down power in the aircraft
fi rst. Otherwise, the aircraft could become out of control and cause a safety hazard! Move the throttle
stick and throttle trim lever to minimum position to stop the combustion engine or shut down the ESC.
Once the propeller has stopped rotating, move the switch harness in the model to the OFF position,
then disconnect the power battery from the ESC in electric models. Then turn off the power switch on
the Tx.
1.
Once all setup procedures have been confi rmed and power has been removed from the model and
transmitter, prepare for fl ight. For airplanes, re-attach the propeller to the model.
IMPORTANT:
Be very careful to
stay clear from moving propellers!!
SYSTEM CHECK and OPERATION
FLYING the AIRCRAFT
