The dynamics of mechanical flight; lectures delivered at the Imperial college of science and technology, March, 1910 and 1911 (1912)
Greenhill, G. (George), Sir, 1847-1927 · London, Constable & Company Ltd. · leaf 52
THEUST AND CENTEE OF PEESSUEE 43 If there is no surrounding medium, the components of momentum, W — and W — sec-lb of the body weighing W lb will remain unaltered while the centre moves from O to 0', so that the vector OH of momentum will move to O'H' in the same straight line 00', and there is no… … Fig. 16. But if the body is surrounded by a medium, of which it dis- places W lb, the velocity components U and V will give rise to momentum-components in the medium, alV —, caTF'—, where fl II ci and C2 are different constant numbers depending on the shape of the body; and as the broadside motion…
Aerodynamics · Aeronautics
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