- Crew: 12
- Length: 104 ft 8 in (31.91 m)
- Wingspan: 123 ft 0 in (37.50 m)
- Height: 23 ft 9 in (7.25 m)
- Wing area: 1,646 ft² (153 m²)
- Empty weight: 51,616 lb (23,462 kg)
- Loaded weight: 85,844 lb (39,020 kg)
- Max. takeoff weight: 93,808 lb (42,640 kg)
- Powerplant: 4 × Wright R-3350-13, 2,200 hp (1,600 kW) each
Performance
- Maximum speed: 382 mph (615 km/h)
- Range: 5,333 mi (8,045 km)
- Service ceiling: 17,832 ft (5,440 m)
- Rate of climb: ft/min (m/s)
- Wing loading: 52 lb/ft² (255 kg/m²)
- Power/mass: 0.10 hp/lb (170 W/kg)
Armament
- Guns:
- 8× .50 in (12.7 mm) machine guns in four fuselage turrets
- 2× .50 in (12.7 mm) machine guns and
- 1× 20 mm cannon in remotely aimed tail turret
- Bombs: 16,000 lb
