ORIGINAL: Montague
they always are talking about the whole wing or stab fluttering around, they don't mention the control surface moving while the wing stays still.
I thought about mentioning the wing and stab flutter also, but it is a lot less common. The control surface fluttering is the main problem I have seen in RC. Thats the only name I have ever heard it called, other than harmonic vibration, but I don't recall that being in RC.