I plugged the ailerons in backwards on my WM chickmunk a few months ago. I took off went into a right turn ...it roles the other way and slames into the end of the runway It held up very good! I reenforced all the damaged areas and flew it for a few weeks until I was doing some low aerobatic stuff and the engine died....couldn't get it back in and pounded it pretty hard... that was my falt though. It is still in flying condition but beat quite badly so I put it up. I learnd a big lesson with that plane...I don't know how i didn't notice the ailerons going the wrong way I check them EVERY time now.

Chad