Elementary aeronautics; or, The science and practice of aerial machines (1911)
Thurston, Albert Peter, b. 1881 · London and New York : Whittaker & co. · leaf 91
as embraced by two pine planks n, 2 inches thick, between which were mounted the two members h of the radiating arm. The weight of the rotating parts was carried on a ball race u>. The members h were of Honduras mahogany with their edges sharpened off, and were prevented from twisting by means of.… … FIG. 88.— Static test of propellers. (Walker- Alexander.) mitted from the engine to the propeller through a shaft /, bevel wheels, vertical shaft, pulley and belt i running through the arms h. The operation was as follows : — The aeroplane g to be tested was mounted on a double parallel-motion…
Aeronautics
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