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I'm doing a math exercise and I'd like to understand:

  • Where does lift act overall on the wing of a B747-400 when the aircraft flies straight and level at its cruise speed.
  • Which parameters, if any, may significantly affect the location of this point.

I'd appreciate if you share a reference document.

mins
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Devansh Rathi
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    For almost any simulation (short of an advanced fluid dynamics simulator), wing lift is centered at the thickest part of the wing, which is where the 1st derivative of the upper-edge is 0. – abelenky Aug 30 '16 at 19:03
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    The angle of attack does not have anything to do with the horizon; it is 0 when the angle of the wing chord is equal to the angle of the wind passing the wing – 60levelchange Aug 30 '16 at 19:09
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    Related: http://aviation.stackexchange.com/questions/16193/how-do-wings-generate-lift – 60levelchange Aug 30 '16 at 19:11
  • Welcome! I'll edit your question so that it doesn't attract downvotes, it you are unsatisfied with the adjustments you can always restore your version (rollback) using the edited... link at the end. – mins Aug 30 '16 at 22:20
  • Thanks for the response, but I need some sort of a reference document. Otherwise, i cannot use the information. Thanks! – Devansh Rathi Aug 31 '16 at 17:24
  • Getting closer to the transonic regime modifies the application point. – Trebia Project. Aug 31 '16 at 21:30
  • I am sorry, but i have no idea what that means. Could you dumb it down and explain? – Devansh Rathi Oct 03 '16 at 18:59

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