H.C. Hulick

If you have flown RC for any length of time, chances are good you have experienced control-surface flutter. Beside scaring you with that humming sound, flutter will severely stress the control surfaces, and can cause breakage of support structure, hinges, linkages, servo gear trains, and control surfaces. We know it exists and realize it is a dangerous problem, but why does it happen, and what can we do to eliminate it or prevent it from happening?