ORIGINAL: fkozlof

Thunder Tiger ARF's, IMO.
I've had two: Champion 35 (6+ yrs. back)


Both had a tendancy to 'roll out to the right', when you cracked in up elevator.
I had very experienced helpers mess with balance, fit, elevator trim, etc. and we concluded there was something strange about the wing design, which caused what was in effect, a 'high speed stall'. While they did tip stall seriously, at slow landing speeds, they were especially 'crazy' at high speed, in a high G pull up.

To the point of being dangerous. I nearly headed for the pits a couple of times doing a high speed pass and climb to altitude.

I'm experienced at building, and highly confident in the wing fit and left-right angle of incidence, so if it's wrong, it's likely because the wings were not made symmetrical to start with (ie. left differs from the right).

Thus, I'm all done with TT arfs. Too bad about the G-202, 'cuz it looked real nice, and did some great aerobatics. It's just that some of them were not induced by the pilot !

If you KNOW what really might have caused this tendency to 'high speed stall', please email me at [email protected]. thanks.