Word: bleeckers
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Dates: during 1930-1939
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...large crowd of airmen, newshawks, photographers assembled last week at Curtiss Airport, Valley Stream, L. I. for their first view of the Curtiss-Bleecker helicopter. For four years, at a cost of $250,000, it had been under secret development by Curtiss Aeroplane & Motor Co. A little oil leak prevented a trial flight, but young Designer Maitland Barkelew Bleecker sat at the controls, grinned in happy anticipation as the four wings revolved horizontally above his head...
...wings of the Curtiss-Bleecker are mounted at right angles to each other, to rotate about a vertical axis. Each wing is equipped with a propeller, shaft-driven by a central Wasp motor mounted horizontally in the axis. Also to each wing is rigged a controllable "flipper," comparable to an aileron. Beneath the entire assembly is a tiny two-place gondola with nearly conventional controls, landing gear, rudder...
...Bleecker helicopter is designed to rise with wings rotating at 60 revolutions per minute. In flight, this may be speeded to 100 r. p. m. The machine is designed to move in any direction. Flight direction is controlled by a cam which changes the position of the "flippers" of each rotating wing as it passes a given point, and by changing the angle of the wings themselves...