Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 759
r.—The theoretical consideration of thescrew as a means of propulsion involves the currents produced by the ship, the friction of the sur-face of the blades, the position of the propeller, and numerous other conditions, which make thisproblem one of difficult solution; and up to date no… … SCREW-PROPELLER. i27 In order to find the size and proportions of a screw required to drive a ship at a certain speed,the usual method is to be guided by previous practice. Bourne, in his Treatise on the Screw-Pro-peller, gives a very valuable set of tables for the proportions of various screws. A…
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