Chanute, Octave, 1832-1910 · New York, The Railroad and engineering journal · leaf 29
in. from tip to tip of wings, andweighs 385 grains, one-third of which consists in thetwisted rubber strings furnishing the motive power. Thenecessary flexion of the wings, to obtain a propelling aswell as a sustaining reaction, is produced by a triple ex-centric, each actuating a lever fastened to… … Fig. 5- make, are said to have flown up to a height of 25 ft. anda distance of 70 ft. against a slightly adverse wind. The relative power absorbed, however, is quite beyondthe capacity of any known prime motor. The next principle—that of an aerial screw to sustainand to propel simultaneously by its…
Aeronautics
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