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I am determining the shape of the fuselage of a sailplane and I found something that gives me a little conflict, and that is that in most sailplanes it has an inclined tip, I read that this helps reduce drag, but I also see that the wing is not at some notable angle of incidence for the best L/D, with this in mind three questions arose:

  1. Do sailplane wings adjust just right for best L/D? because I also had the doubt that adjusting it at this point causes any inclination to drop this relationship and I don't know if it would be optimal to use degrees before the best L/D.
  2. Does the tilt of the nose affect this angle or is it only designed for drag? I also read about visibility.
  3. Is figure a and b equivalent? not in terms of drag, but in a possible configuration without considering pilot visibility.

Wing incidence Angle. a) Fuselage Inclined b) wing inclined

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  • $\begingroup$ Where did you read that it reduces drag? $\endgroup$
    – tedder42
    Nov 17 at 14:35
  • $\begingroup$ Does "inclined tip" mean washout? $\endgroup$
    – Camille Goudeseune
    Nov 17 at 15:55
  • $\begingroup$ What do you mean by "the wings adjust?" What does the adjusting - the designer, the ailerons, the aeroelasticity? $\endgroup$
    – Camille Goudeseune
    Nov 17 at 15:58

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