The Bothezat Helicopter.

by Daniel Russ on January 15, 2013

The Bothezat Helicopter


The Bothezat Helicopter



The Bothezat Helicopter





In January 1921, the US Army Air Corps awarded a contract to Dr. George de Bothezat and Ivan Jerome to develop a vertical take off and landing machine. Their idea was a four-rotor configuration where the four rotors sat up high in for corners of a diamond shape, or X shape. The rotors each sat at the end of a 7 foot long arm. Each of the rotors was controlled individually with pitch and speed and feathering.


The de Bothezat Helicopter was quite a stable platform, but it was very operose. The workload with four individually controlled rotors was too much for most pilots.


Hundreds of verticle flights were made at Wright Patterson airfield in Dayton, Ohio. But the de Bothezat did not have the altitude Army planners were looking for.


Sources: P. Lambermont “Helicopters and Autogyros of the world”.




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