> Does anyone know if the wing tip (vertical winglets) add anything to the > rate of climb or anything else in the performance of a small plane like the > KR2?
I can't point to a specific reference for this "opinion", but I remember reading that they do help at speeds over 400 mph, so for our planes, they are probably not worth the trouble unless you want something that looks cool. The faster you go, the more they help, which is why airliners are now sporting them. Willy Willson told me at the last Gathering that British Airways had retrofitted them to their entire fleet of 747's (maybe all types, dunno), so at 600 mph, they obviously pay for themselves. Contradicting information is welcome, but that's all I've heard. Mark Langford, Huntsville, AL N56ML "at" hiwaay.net see KR2S project at http://home.hiwaay.net/~langford
