Have the same problem with my S107 heli. I determined it's in the speed control hooked to the gyro control. This control feature helps keep heli from turning in flight caused from tork. The lower blades are the ones that speed up slow down to keep heli orientated. I'm replacing the control board.
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Have the same problem with my S107 heli. I determined it's in the speed control hooked to the gyro control. This control feature helps keep heli
from turning in flight caused from tork. The lower blades are the ones
that speed up slow down to keep heli orientated. I'm replacing the control board.