The leading edge stall trips at the wing roots do function by 'tripping a stall at a slightly lower angle of attack, however its my belief that they are in no way something to be wary of anymore that the other methods of causing the wing roots to stall first before the region of wing where the ailerons are.

That is the whole point of twisted wings, a spanwise airfoil change and of course root region stall trips.

This method has also been well tested by prolific and brilliant model aerodynamics researcher Andy Lennon and published many times over the years.

I actually did use this method one time to help a desparate friend and it was a wonderful success. This was about five years ago and my friend purchased an early CMP P-40 arf. He did the maiden and promptly crashed. After repairs I tried the next maiden but did survive but just barely. You could not slow it down at all without it wanting to immediately depart. On the next flight attempt I crashed it.

Well heck with this after next set of repairs I glued two short sticks of tri stock in seconds to the wing roots and the transformation was remarkable. The airplane became completely managable. Over weight, sure and definatelely not a pattern airplane but managable and actually fun. That ship has survived to this day.

This simple solution (leading edge tri angle stock at the roots) is a viable solution for many airplanes that may have problems and takes only a minute to stick on a couple of sticks where its not practical to twist an already constructed wing. 'Simple'


John