Many of the foam plane plans call for a formed wing. This is can be accomplished easily with a Wing Baking Jig. The Wing Jig is sized specifically to fit on the rack of a typical house oven. Just 15 mins at 200 degrees will turn the Fan-Fold foam in to a nice airfoil. Baking is an amazingly quick way to to build a wing.
Plans for the Wing Jig can be purchased from FoamFly.com here. Though I decided just to wing it on my own with out plans once I understood the design. The key piece of the design is knowing that the forming sheets are made from scraps of flashing supported by airfoil ribs. A see photos below.
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