Its engine represented a third of a horse power, and the weight of the whole (engine, boiler, water, fuel, superimposed aeroplanes and ' On Aerial Locomotion, Aeronautical Society's Report for 186.7.
Largely with the view of studying the problem of maintaining equilibrium, several experimenters, including Otto Lilienthal, Percy Filcher and Octave Chanute, cultivated gliding flight by means of aeroplanes capable of sustaining a man.
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