U. S. PATENT 954,574 May Willi; U. S. PATENT 957744 U. S. Patent 957,744.Christmas. This is an aeroplane for which automatic sta-bility is claimed, through the shape of the twosupporting planes. The upper and lower planesconverge toward one another at the ends: the air toward the ends of the-Qt… … Fig b ::s^~ L ^^ *■ \ < ^—-^ ^ ^M -^=- 1
Aeronautics
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