Grey, C. G. (Charles Grey), 1875-1953 · London, "The Aero" · leaf 62
Fig. 2. The wind blowing stronglybut more nearly to the hori-zontal, the model, startedagainst the wind, will soarvertically upwards, or maybe blown backwards stillrising. … Model travelling with the wind will rise ifdirection of wind is sufficiently vertical.^andits speed will be increased. Fl6. 4.
Airplanes
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