The mechanics of the aeroplane, a study of the principles of flight (1912)
Duchêne, Émile Auguste, 1869-, Ledeboer, John Henry, 1883-, Hubbard, Thomas O'Brien, 1882- · London, New York [etc.] Longmans, Green and co. · leaf 175
158 THE MECHANICS OF THE AEROPLANE opposite directions by the air on the vertical rudder and on the keelplane have equal moments with respect to the centre of gravity. (This problem of equilibrium is similar to that which has been studied in § 54, Fig. 59.) But it must be taken into consideration… … FIG. 67.— Plan. which passes through the centre of gravity, since both forces balance themselves around this point. The centre of gravity is subject, therefore, to the continuous centri- petal action of the forces q— p, which tends to curve the trajectory until this curvature sets up a centrifugal…
Aerodynamics · Airplanes · Flight
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