9
FAILSAFE FUNCTION
The failsafe function for this radio system is established in the receiver. If the control
signal from the transmitter is suddenly lost, the receiver will automatically activate
the failsafe. The aileron, elevator, and rudder channels (1,2, and 4) will hold the last
positions as received. Throttle channel 3, however, can be set to move to a specifi c
position if desired. The factory default position for the throttle channel is minimum
throttle (0%), and can be manually changed as follows:
1. Turn the transmitter power switch ON. Make sure all reversing switches are in the
proper position for the application.
2. Turn the receiver’s power switch ON (switch harness, or ESC switch if used).
3. If an ESC will be used do NOT arm the ESC at this time. If the ESC has already
been armed do not try to adjust the throttle’s failsafe position. If using a speed
control which includes a safety feature for when radio signal is lost, the receiver’s
failsafe function will instead control throttle operation. If using a combustion engine
instead, do not adjust the throttle’s failsafe setting while the engine is running.
4. Move the Tx throttle stick to the position preferred for failsafe.
5. Press and hold the LINK button on the receiver. After the receiver’s red LED
blinks twice, release the LINK button. The LED should then turn on and stay
illuminated to indicate the failsafe position for the throttle channel is set.
PREFLIGHT CHECK
IMPORTANT!
Remove the propeller from the aircraft before performing
the fi nal checks on the aircraft before a fl ight. Always apply power to
the transmitter before applying power to the receiver. Make sure the
transmitter’s throttle stick is at minimum position. Otherwise personal injury and
damage to the surroundings could result if the model’s propeller begins to spin
suddenly. If the transmitter must be set down, always lay it on its back so it cannot
fall over and accidentally move the throttle stick away from minimum (idle) position.
Check that all components inside the model are securely in place, including wires,
connections, etc. so they cannot become separated during fl ight.
1. Move the transmitter’s throttle to minimum position (idle).
2. Turn the transmitter’s power switch ON. Then apply power to the receiver.
3. Check for proper operation of all controls in the model by moving the controls on
the radio. Make sure servos are rotating in the proper direction and all linkages
are moving properly.
4. With both transmitter sticks at center, check to make sure the transmitter’s
aileron, elevator, and rudder trim levers properly move their respective control
surfaces, and align each control with the main surface on the model. Make sure
the rudder is perfectly aligned with the tail’s vertical stabilizer, the elevator is
perfectly aligned with the horizontal stabilizer on the tail, etc.
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