Langley, S. P. (Samuel Pierpont), 1834-1906 · Washington : Smithsonian Institution · leaf 48
s, for 9°; R = 464 tan 5° = 40.6 grammes, for 5°, a formula which is immediately derived from the fundamental principles of mechanics and appears to involve no assumption whatever. The work done per minute, R X F, is 62 kilogrammeters (450 foot-pounds) for 9°, and 43 kilogram- meters (312… … afo ito tic 200 Times of falling 4 feet of single and double pairs of 15 x 4 inch planes. Abscissae : Horizontal velocities of translation in meters per second. Ordinates : Time of fall in seconds. required to maintain a horizontal velocity of 17 meters per second than of 14 ; a conclusion which is…
Aeronautics · Winds
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