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 84
75 GENEEAL DYNAMICAL PEINCIPLES In the discussion of the gyroscope in Fig. 42 the M.I. is required about the supporting pin 0, and this is determined experimentally by letting the wheel swing in one plane like a pendulum, and measuring the length, I feet, of the thread of the simple equivalent… … I' = h' + C = Wli' [V - h'), lb-ft2. (2) Wh' We call Tl', Wh, A, and C the physical constants of the wheel as a gyroscope or top, and if no spin is given, the wheel can make plane oscillations, like a single pendulum of length I ft, beating time, T seconds in small oscillation, where V' V: T: (3)…
Aerodynamics · Aeronautics
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