PA75. Header no pipe. All dope. Rubbed out with Gorans (sp?) then waxed. Dan conceived the idea. Then drew up the plans. Neat details all over the place. Some funny. A more conventional wing than his previous competition design, the Vista. The Vista had a fatter airfoil of near constant cord, only 1 degree of sweep back. The Raven wing, I believe, tapers airfoil towards the tip. Also more lead edge sweep. The Vista had issues, surprisingly, in very calm conditions. It went in, at least once, yanked out of the air by its residual wake. Dan thought the constant chord thick wing of Vista created a lot of turbulence. New wing is more conventional.
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