Endurance Flights Propellers

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(From left to right)

Propeller used on the DH-4B flown by Lts. Lowell H. Smith and John P. Richter to received fuel during the U.S. Army Air Service's first aerial refueling on June 27, 1923.

Propeller used on the DH-4B "tanker" flown by Lts. Virgil Hine and Frank W. Seifert during the refueling flights conducted at North Island in 1923.

Propeller used on the DH-4B flown by Smith and Richter when they used aerial refueling to set a new world endurance record of 37 hours, 15 minutes on Aug. 27-28, 1923. The propeller was also used on their flight from Canada to Mexico in 12 hours, 3 minutes on Oct. 25, 1923.

All three propellers were donated by Col. (Ret.) Frank W. Seifert.

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