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BOEING XB-39 SUPERFORTRESS
The Boeing XB-39 Superfortress was a United States prototype bomber aircraft, a single example of the B-29 Superfortress converted to fly with alternative powerplants. It was intended to demonstrate that the B-29 could still be put into service even if the first choice of engine, the air-cooled Wright R-3350 radial engine, ran into development or production difficulties.


Boeing-GM XB-39 Superfortress/41-36954 at Wright Field, January 1946.
[Source: Bill Larkins via Wikipedia]

– Design & Development
– Operational History
– Specifications

Sources:
Wikipedia

U.S.A.A.F. RESOURCE CENTER > EXPERIMENTAL > PREVIOUS PAGE