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  1. gerritgroot

    Vortex Lattice

    Hi, I'm looking for literature on the vortex lattice method, or prandtl's lifting line method. This is so old now that I suppose it's freely available. If not, an advise for a good book explaining this will do as well. Thanks in advance, Gerrit
  2. gerritgroot

    Zeppelin Drag

    Hi, A bit of a silly question maybe, but I remeber that I've seen a picture once on the internet with a drag comparison between several kinds (shapes) of airships, which I can't find anymore. Does anyone know about such studies and where I can find these comparisons. I've been looking in...
  3. gerritgroot

    Curvature of airfoils

    Hi, Does anyone know whether there exists a standard way, or any other method, to smoothen the curvature of airfoils without changing the geometry too much? Thanks in advance, Gerrit
  4. gerritgroot

    spinner drag

    Hi, Does anyone know where I can find data about propeller spinner drag? Is there an ideal elliptical relation? nose radius? or whatever? (At relatively low speeds, incompressible and Re=0.3e6) Thanks in advance, Gerrit
  5. gerritgroot

    How to modify the trailing edge thickness

    Hi, Does anyone know whether there's a standard procedure for modifying the trailing edge thickness of 2D airfoils? (maintaining the airfoil's relative thickness) Thanks, Gerrit

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