The XP-54, Vultee Model 70, was designed as a fast interceptor using the Pratt & Whitney X-1800-4AG engine. When the engine program was canceled, the aircraft was redesigned for the Lycoming XH-2470 and redesignated Vultee Model 84. With a pressurized cockpit, a pilot emergency ejection was downward, through a hole in the floor.

 

The first of two XP-54s built (S/N 41-1210) made its initial flight on 15 January 1943, piloted by Frank Davis, and flew 86 times before it was grounded by engine problems. The second aircraft (S/N 41-1211) flew only once, on 24 May 1944.

 

Vultee XP-54 - The only flight of 41-1211

 

The XP-54 nose section had a very unusual design feature. It tilted slightly upwards when firing its 37mm cannon to increase the firing range while the .50-cal. machine guns were tilted down at the same time. All had compensating gunsights.

 

Both were eventually scrapped.