Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 641
yers of full-size aero-planes. Always bear in mind that the supporting powerof planes depends more upon their shape thantheir size. A remarkably efficient model may bemade with planes which are little more thanknife-blades (Fig. 1). The planes are made ofwhite wood slightly flexed, with a sharp… … FIG. II. A CELLULAR MODEL. THIS TYPE AND FIG. 12 ARE SAFER AND MORE STABLE IN FULL-SIZE AEROPLANES THAN IN MODELS. propeller should be small and mounted well backof the center of gravity. Such models have flownfor more than three hundred feet. The secret ofthis flight lies doubtless in the perfect…
Children's literature
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