Bell XP-39 38-326 in NACA wind tunnel, Langley Field, 9 August 1939

Published on April 2, 2013 in 6 April 1939Full resolution (785 × 575)

Bell XP-39 Airacobra 38-326 in the NACA full-scale wind tunnel, Langley field, Virginia, 9 August 1939. (NASA)

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