As for the accuracy of the airfoil, I can't say about the foil at the rib station, but I am sure where there is no rib supporting the film covering and the covering film sags, that can't be true to as designed by Dr D. Actully, the airfoil varies throughout the whole span of the wing. Unless the wing was cut by a CNC machine with very careful programming, no one can claim the airfoil is 100% of the airfoil designed by Dr.D.
And if it is not 100% of the real thing, What airfoil is it?
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