Helicopter model in a wind tunnel, 1957

Helicopter model in a wind tunnel, 1957

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Caption: Helicopter model. This model of a helicopter was used to investigate the interaction between a pair of rotor blades mounted in tandem on a helicopter. It is suspended inside a wind tunnel for aerodynamic testing. Photographed at the National Physical Laboratory, Teddington, UK, in 1957.

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Keywords: 1900s, 1950s, 1957, 20th century, aerodynamics, aeromechanics, aviation, black-and-white, britain, british, england, english, flight, helicopter, historical, history, history of science, lab, laboratory, model, monochrome, national physical laboratory, npl, research, rotary wings, rotor blade, technological, technology, teddington, transportation, uk, united kingdom, wind tunnel

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