Vintage Boeings In Pictures

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High altitude flight data is being recorded in a flying laboratory at the Aircraft Engine Research Laboratory of the National Advisory Committee for Aeronautics, Cleveland, Ohio (now known as the John H. Glenn Research Center at Lewis Field) on May 1, 1944. The aircraft is a modified B-29 bomber manufactured by Boeing, and backbone of the World War II effort. It was used to determine what conditions cause ice to form on wings and aircraft surfaces.