North American P-82/F-82 Twin Mustang

The F-82 was the last propeller-driven fighter acquired in quantity by the USAF. It appears to be two Mustang fuselages on one wing, but in reality it was a totally new design. Its purpose was to provide a fighter carrying a pilot and co-pilot/navigator to reduce fatigue on long-range bomber escort missions. A lot of photos this aircraft can be found in the link:

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