The Stearman X-100 bomber first flew on 16 November 1938 according to one source, powered by uncommon P&W R-2180-A Twin Hornet engines. The original nose shape has been changed to a stepped nose here. The type was rejected, but the sole prototype was acquired by the USAAC as the XA-21 'attack aircraft'. Rudder striping abolished in 1940. To ground instructional airframe at Wright Field in 1942. Photo from: National Museum of the US Air Force
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