14
15
Flying exercises
Rotations on the spot
Spot landings
Flights over a rectangular area
“Lying eight” flights
Troubleshooting
Problem
Problem cause
Problem solution
Transmitter does not work.
Transmitter is not switched on.
Batteries are not properly installed.
Batteries are empty.
Switch on transmitter.
Remove and reinstall the batteries.
Change batteries.
Helicopter does not work.
No electric power.
Transmitter does not receive a signal.
Batteries in the helicopter and/or
transmitter are empty.
Check connection between helicopter and
flight battery.
Check channel/frequency (helicopter
and transmitter need to be on the same
frequency).
Charge the flight batteries or change the
transmitter batteries.
Motor does not work.
No connection between model and motor.
Motor is defective.
Check cables and re-solder if necessary.
Change motor.
Helicopter is uncontrollable.
Transmitter antenna is not screwed in
properly or not fully extended.
Strong winds or airflows.
Screw in antenna and fully extend it.
Do not fly in strong winds or airflows.
Helicopter does not climb.
Insufficient power.
Flight batteries are empty.
Push the throttle stick forwards.
Charge the flight batteries.
Landing of the helicopter is too
hard.
Trottle stick was pulled backwards too
fast.
Pull the throttle stick back gently for a soft
landing.
