Chatley, Herbert, 1885- · New York, D. Van Nostrand company · leaf 16
nd it is with thisvariety I propose principally to deal. It will be noticed that the title kiteis also applied to this type, and, as amatter of feet, in its esse: tial principlesthe aeroplane is merely a large varietyof kite. It therefore behooves to study brieflythe action of the ordinary kite and… … Fig. 1. KITE (1) A more or less rigid surface. (2) A cord tying this surface to theearth. (3) A continuous motion of airagainst the surface. It follows from the simplest mechani- 8 cal principles that there are threeforces in this case, the wind pressure onkite, the pull in the cord, and theweight…
Airplanes
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