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Flying, the why and wherefore (1909)

Grey, C. G. (Charles Grey), 1875-1953 · London, "The Aero" · leaf 63

An illustration from Flying, the why and wherefore, 1909, leaf 63 — Fig. 5. Model travelling against the descending windX B sinks rapidly and possibly vertically. Fig. 6. Model travelling with the descendingwind gives a better glide than in theother case, but it must descend in anycase. … III.—Horizontal Currents.

Airplanes

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