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Bruce Hoult wrote:
But the spar does not have to deal with the extra lift on a *long* moment arm. Well not all of it anyway. Hmm ... well a deliberately non-lifting horizontal section at the tip would reduce induced drag as well. This could be done for one angle of attack, but I don't see how it could be done for the usual range a glider uses. A winglet has the same angle of attack, independent of the wing. -- ----- Replace "SPAM" with "charter" to email me directly Eric Greenwell Washington State USA |
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