80-G-K-13757:   Navy Flight Training Oxygen tank operators stand by controls as the Watch Cadet Pilots qualify for high altitude flying during World War II. The Chief Petty Officer is in charge of the crew. Man in the foreground controls pressure while the man at the microphone gives directions to the cadets inside the tank. Photographed prior to June 1944. Note the color-coded pipes. Official U.S. Navy Photograph, now in the collections of the National Archives.  (2016/08/26).
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