Consolidated-Vultee XP-81 - Definition

The Convair XF-81 was a prototype American fighter aircraft designed with both a jet engine and a turboprop engine. The fuel-hungry jet engine was to be used for takeoff and combat, with the turboprop taking over the rest of the time. Disappointing performance ended the project.

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Specifications (XP-81)

General Characteristics

Crew: one pilot
Length: 44 ft 10 in (13.69 m)
Wingspan: 50 ft 6 in (15.40 m)
Height: 14 ft 0 in (4.27 m)
Wing area: 425 ft² (39.5 m²)
Empty: 12,755 lb (5,798 kg)
Loaded: 19,500 lb (8,864 kg)
Maximum takeoff: 24,650 lb (11,205 kg)
Powerplant:
1x General Electric XT31-GE-1 turboprop, 2,300 hp (1,716 kW) thrust
1x Allison J33-GE-5 turbojet, 3,750 lb (16.7 kN)

Performance (expected)

Maximum speed: 507 mph (811 km/h)
Range: 2,500 miles (4,000 km)
Service ceiling: 35,500 ft (10,823 m)
Rate of climb: 5,300 ft/min (12,165 m/min)
Wing loading: 106 lb/ft² (1,616 kg/m²)
Thrust-to-Weight:

Armament

never fitted - expected to be 6x 20 mm machine guns or cannons and up to 2,000 lb (909 kg) of bombs

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