Originally Posted by
speedracerntrixie
I think the loud bang was a violent aileron flutter that stripped one or both aileron servos. Hard to tell without seeing the setup.
Jester just because one uses a Spektrum does not mean that was cause of the failure. 95% of all so called radio failures are self inflicted.
I know exactly what you mean by "self inflicted". This guy who's a novice pilot hand launched and immediately it tip stalled and crashed.
He was a funny guy and said I know it is a pilot error, but officially it is a radio failure.
I have experienced aileron flutter on single side only on someone else's airplane, but never on mine. One time, on this airplane one of the servo gear failed.
Still, I doubt the noise was flutter since the canopy being so much ahead of crash explains it was canopy that made the noise. Two separate source of noise at exact time is unlikely (but possible).