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Forward Swept Wings
I am working slowly on an evolving Fly5k design and considering a
swept forwrd wing. Does anyone know anything about thier design? Also would anyone have experience with the Sisler Cygnet, Andreasson BA-7, or Pottier's Bleu Citron designs. The Cygnet seems to be well thought of but I don't know any owners or pilots that actually flew one. I've learned that mild forward sweep (less than 5 degrees)is not much different than a standard wing. A tapered wing with lots of forward sweep is prone to twist its tips upward under load so must be torsionally rigid. I am sticking with the simple rectangular wing planform and sweep of 3-4 degrees max. This allows a compact mid wing and with a 30% C spar location the pilot sits on the c of g with the mac moved forward slightly (app. 1/2 the amount of forward sweep). |
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