General characteristics
Crew: 7 (First and second pilot, navigator/bomb aimer, front gunner/WT operator, two air gunners, and flight engineer)
Length: 87 ft 3 in (26.6 m)
Wingspan: 99 ft 1 in (30.2 m)
Height: 22 ft 9 in (6.9 m)
Wing area: 1,460 ft² (135.6 m²)
Empty weight: 46,900 lb (21,274 kg)
Loaded weight: 59,400 lb (26,944 kg)
Max. takeoff weight: 70,000 lb (31,752 kg)
Powerplant: 4 × Bristol Hercules II radial engine, 1,375 hp (1,025 kW) each
Propellers: Three-bladed metal fully feathering 13 ft 6 in diameter propeller
*Aspect ratio: 6.5
Performance
Maximum speed: 255 mph (410 km/h) at 21,000 ft (6,400 m)
Cruise speed: 200 mph[25] (320 km/h)
Range: 2,330 mi (3,750 km)
Service ceiling: 16,500 ft (5,030 m)
Rate of climb: 800 ft/min (4 m/s)
Wing loading: 44.9 lb/ft² (219.4 kg/m²)
Power/mass: 0.093 hp/lb (0.153 kW/kg)
Armament
Guns: 8 x 0.303 in (7.7 mm) Browning machine guns: 2 in powered nose turret, 4 in tail turret, 2 in dorsal turret
Bombs: Up to 14,000 lb (6,350 kg) of bombs[26]
