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Hi All, I'm new to the Rocketry Forum and had a question: has anyone tried foamcore (aka Foam Board) for fins or glider wings (especially the delta shaped models) and if so, how does it compare to balsa in terms of its strength/weight ratio for low-power rockets (A, B, or C engines)? It's plentiful in 1/2" and 3/16" thicknesses at hobby and art stores, there's no wood grain to sand and finish, and is easily cut, shaped, and painted.