Vultee XP-54 Swoose Goose

Vultee XP-54 Swoose Goose resulted from United States Army Air Corps proposal R-40C issued on 27 November 1939 for aircraft with improved performance, armament, and pilot visibility over existing fighters; it specifically allowed for unconventional aircraft designs. Also designed to this request were the Curtiss XP-55 Ascender and the Northrop XP-56 Black Bullet.

Initially designed as a low-altitude interceptor, this was changed to a high-altitude interceptor. The resulting addition of a pressurized cockpit led to a unique pilot entry method, where the seat acted as an elevator. The seat was lowered and raised electrically while the pilot at it it. Bail out was also complicated by the pusher propellors and a downward firing ejector seat was installed.

Two prototypes were built (41-1210 and 42-108994, although the second was wrongly marked 42-1211). Performance fell short of design expectations, which combined with project delays and increased costs led to its cancellation. Both aircraft saw out their days as experimental airframes until a lock of spare parts led to their grounding.