General characteristics
Crew: 11: two pilots, navigator, bombardier, five gunners, two radio operators
Length: 74 ft 7 in (22.73 m)
Wingspan: 110 ft 0 in (33.53 m)
Height: 30 ft 1 in (9.17 m)
Wing area: 1,048 ft² (97.4 m²)
Empty weight: 27,485 lb (12,467 kg)
Max. takeoff weight: 65,000 lb (29,500 kg)
Powerplant: 4 × Pratt & Whitney R-1830-94 radial engines, 1,350 hp (1,007 kW) each
Performance
Maximum speed: 300 mph (261 kn, 482 km/h)
Cruise speed: 175 mph (121 kn, 224 km/h)
Range: 2,820 mi (2,450 nmi, 4,540 km)
Service ceiling: 21,000 ft (6,400 m)
Wing loading: 62 lb/ft² (300 kg/m²)
Armament
Guns: 12 × .50 in (12.7 mm) M2 Browning machine guns in six turrets
Bombs: Up to 12,800 lb (5,800 kg) of bombs, mines, or torpedoes