General characteristics
Crew: 9: pilot, copilot, bombardier, navigator, engineer, radio operator, three gunners
Length: 53 ft 1 in (16.2 m)
Wingspan: 172 ft (52.2 m)
Height: 20 ft 3 in (6.2 m)
Wing area: 4,000 ft² (370 m²))
Aspect ratio: 7.3
Fuselage diameter: 9 ft 6 in (2.9 m
Empty weight: 89,300 lb (40,590 kg)
Loaded weight: 180,000 lb (82,000 kg)
Max. takeoff weight: 209,000 lb (95,000 kg)
Powerplant: 2 × Pratt & Whitney R-4360-17 and 2× R-4360-21 radial engines, 3,000 hp (2,200 kW) each
Performance
Maximum speed: 393 mph (632 km/h)
Range: 8,150 mi (13,100 km)
Service ceiling: 39,700 ft (12,100 m)
Rate of climb: 625 ft/min (3.2 m/s)
Wing loading: 45 lb/ft² (220 kg/m²)
Power/mass: 0.07 hp/lb (0.11 kW/kg)
Armament
Guns: 20 × .50 in (12.7 mm) M2 Browning machine guns
Bombs: 51,070 lb (23,210 kg)
