Operating the brushless motor on the ground or in a static mode whereby the aircraft cannot move, puts peak loads on the motor while not providing adequate cooling normally generated in flight. Peak loads coupled with inadequate air flow leads to very rapid heat buildup within the brushless motor that can damage or destroy the motor very quickly.

 

ENSURE ADEQUATE COOLING. DO NOT OPERATE AT HIGH THROTTLE ON THE GROUND FOR LONGER THAN 10 SECONDS.