Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 550
and the air is neverperfectly quiet,—will tip one end ofthe blade up or down. In the earlymodels, this tendency was met by fix-ing the plane at a dihedral angle.Examination of last years models willshow how common was this design.The dihedral angle lowers the centerof gravity. Now, after one side… … GEARED MOTOR-MODEL. BUILT BY LESLIE V. ROBINSON. times to come to rest. This tendency to tippingis fatal to a steady flight. It was first observed 1016 MODEL AEROPLANES OF 1911 [Sept., by the Wright brothers while studying the earlyLangley type of machine. The Wrights aban-doned the dihedral angle…
Children's literature
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