Knife Edge Roll Coupling.
Ok guys. I have a plane you can figure out. I am at a lose so I need your help. I designed a profile, Everything is 0 and on center but, I have a full flying rudder. The plane has TONS of coupling in kife edge. Ail and ele. The only thing i can think of is the new rudder is messing it up. Any help would be great.
Thanks.