Word: bothezat
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...George de Bothezat, consultant on mathematical problems in plane design who lives near the Army air base at Dayton, Ohio...
...Bréguet. By 1923 Austria had its Petroczy; Great Britain its Brennan; France its Damblanc, Oemichen and Pescara; Spain its la Cierva. In the U. S., meanwhile, Henry Berliner, Baltimore aircraft builder, had spent a fortune in a decade's experiment, and Rumanian Professor Georges de Bothezat was conducting researches at McCook Field, Dayton, Ohio for the National Advisory Committee for Aeronautics. For all of that labor, no helicopter was born...
Short flights of more than 20 feet in altitude were made at McCook Field, Dayton, by the De Bothezat helicopter, an airplane that rises vertically without a running start...
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