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  1. shebly

    Is Propeller Spiraling Slipstream a myth or provable fact?

    Which one of us has the shortest "short term memory"? http://www.icmrt07.unina.it/Proceedings/Papers/c/13.pdf Proof of propeller vorticity.
  2. shebly

    Is Propeller Spiraling Slipstream a myth or provable fact?

    Milne-Thomson is available on Google Books, but the preview stops several pages short of the desired item! Here, however, is not a proof, but a test.http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930081810_1993081810.pdf
  3. shebly

    centre of preasure/lift for bi-plane wings

    "It can be seen from the foregoing discussion that the biplane has no useful counterpart of the monoplane aerodynamic center. For this reason, biplane problems are best solved by proceeding directly to a solution of the forces and moments." NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS...
  4. shebly

    Is Propeller Spiraling Slipstream a myth or provable fact?

    Milne-Thomson gives a mathematical treatment of the slipstream in "Theoretical Aerodynamics, 4th edition, Dover, pp 235-242. Yes, the propellor induces radial, axial, and TANGENTIAL motions to the slipstream, and is thoroughly described.
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