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plankdriver -> RE: Airfoil for QM 15 (11/18/2009 4:45 AM)
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Actually, you can use the MH 56. If you don't have XFoil, Profili 2 or Compufoil to manipulate airfoils shape or analyze them, just play with some image editing software to change the aspect ratio. Yes, it will slightly change the characteristics of the airfoil but not enough to make a diference if you don't change the aspect ratio of the original image by more than 5%
Most family of airfoils like the NACA are just that, the same airfoil blown up or down in the Y axis to get a diferent thickness.
I don't know how many times I was asked to give an airfoil and several times I had to take the bad template of my original Quickie airfoil and retrace it with a french curve and send it to my friends. Both Joe Llanos and Victor Diaz have produce several wicket fast Quickies with them.
I wonder how the old my Super T (1990-1998) airfoil which I won a few hundred races with would do today versus the new crop of laminar airfoils?
If I was to make a Q500 today, I stick with the S8064.
Reference:
Compufoil: http://www.compufoil.com/index.shtml
Profili: http://www.profili2.com/eng/default.htm
Xfoil: http://cromagnon.stanford.edu/aa200b/handouts/xfoil_tutorial.html
Chago
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