Clough Parasol - Unconventional circular wing free flight sport model, for .049 power.
Quote -"It may look like a flying dinner plate, but this way-out model is actually a rugged performer that will draw a big hand at any flying site.
ONE OF THE MOST unusual designs in the history of aircraft is the pancake wing, a weird looking bird which actually has a number of features to recommend it, A circular wing presents little drag at low angles of attack, making it fine for high-speed cruising. At high angles of attack the wing develops a great amount of lift and drag, perfect characteristics for low-speed landings. The sharply curved leading edge is an effective substitute for stabilizing dihedral angle. As an extra feature on this model, 'eyebrow' slots have been added to permit climbing at steep angles without stalling.
Construction begins with the fuselage. Cut out the two sides and cement them together along the top edges, starting at the tail end and working as far forward as the strut. Insert the bulkheads and the wing strut, and then add the cabin roof cut from 1/16-in. balsa sheet mounted crossgrain. Note that the firewall must be shaped to fit..."
Quote: "Hi Steve & Mary, The original cad rendering was sent to Roy Clough for his comments. I have included them in this file. File contains the article, full size cad drawing, Roy's comments and the original scan of his drawing. Sorry about the full size cad raster, it is at 150 dpi but still readable. Lost the original cad file along with several other cad files some time ago in a computer crash. If I still had it, I could have created a higher dpi full size file. Gene"
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