> I can't point to a specific reference for this "opinion", but I remember > reading that they do help at speeds over 400 mph......
Aye Mark, are you in the mood for an aerodynamic debate? :-) I thought winglets recovered waste energy derived from induced drag, that is, the wing tip vortices. Is not induced drag greatest at large angles of attack viz. usually at low speeds? Obviously, on balance, the recovered energy over all flight attitudes is worth the manufacturers while. Best regards John and Janet Martindale 29 Jane Circuit TOORMINA NSW 2452 AUSTRALIA ph: 61 2 6658 4767 email: johnj...@chc.net.au
