Full size printed plans Peanut Scale "Sorrell Guppy" Construction is ultra-simple and duplicates the original
Full size printed plans No material
Full size printed plan on a sheet 11” x 17”
Two page article with building notes and photos
By HOBY CLAY
The Guppy is an ultra-light single-place home-built airplane. It was designed and built by Hobie Sorrell of Hiperbipe fame, one of the best designers, builders and restorers of airplanes around. The prototype is powered by an 18 h.p. Cushrnan engine and is one of the few truly successful airplanes to fly on less than twenty horsepower.
The model was designed, like the prototype, as an ultra-light for indoor flying .. It's light and tough enough to bounce off the gym walls and bleachers but too flimsy and under-powered to do well among the tree branches, weeds, and gusty air outside. If you plan to fly it outdoors, I would recommend slightly larger wood sizes and lightly-doped tissue to withstand the rigors.
Construction is ultra-simple and duplicates the original with the exception of the fuselage covering, which is 1/8-inch luan rnahogany door skin plywood.
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