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Propeller Research Tunnel

(L-2303): This Vought VE-7-inspired fuselage and engine became the basic propeller-testing platform. The chain-and-sprocket arrangement at right was an electrically powered starter for the plane’s engine. A dogged fitting engaged the propeller to spin it, and the device rotated out of the air stream after the engine started. Note the beam-type scales used with the balance.

 

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Credit: NASA

Image Number: L-2303

Date: March 2, 1928

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Uploaded on August 2, 2013
Taken on March 2, 1928