The Bell XP-77 (Tri-4) was a lightweight fighter, made mostly of wood, designed to be highly maneuverable. An initial order for 25 aircraft was signed on May 16, 1942, but was reduced to six aircraft after the supercharger for the Ranger engine was not available. The completion of the first aircraft took nearly two years by which time the aircraft was no longer needed; however, two aircraft were completed for test purposes in 1944.
TECHNICAL NOTES: Armament: Two .50-cal. machine guns and one 20mm cannon Engine:Ranger XV-770-7 of 520 hp Maximum speed: 330 mph Cruising speed: 270 mph Range: 550 mi. Service ceiling: 30,100 ft. Span: 27 ft. 6 in. Length: 22 ft. 10.5 in. Height: 10 ft. 11 in. Crew: One