Originally Posted by PHMX
Yes, true, but even a single bend winglet won't cause a roll because lift and drag will still provide enough stability. One could easily get away with angled winglets and some flying wings have those by design. The slower the speed though, the heavier drag will have it's effect on overall lift and performance. One should expect a roll tendency with slowest speeds.
Ahh ok, I didn't realize how it reacts to slow speeds. hmm