Ferris, Richard. [from old catalog] · New York, T. Nelson and sons · leaf 104
The Baldwin biplane, showing balancing plane above upper main plane. on the shoulders of the pilot, and is designed to re-store equilibrium by its swinging into head-resistanceon one side or the other as may be necessary. The motive power is a 4-cylinder Ourtiss motor,which turns a propeller 7 feet…
Aeronautics
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