Northrop YB-49 - Specifications (YB-49)

Specifications (YB-49)

Data from National Museum of the United States Air Force

General characteristics

• Crew: 7
• Length: 53 ft 1 in (16.0 m)
• Wingspan: 172 ft 0 in (52.4 m)
• Height: 20 ft 3 in (6.2 m)
• Wing area: 4,000 ft² (371.6 m²)
• Airfoil: NACA 65-019 root, NACA 65-018 tip
• Empty weight: 88,442 lb (40,116 kg)
• Loaded weight: 133,559 lb (60,581 kg)
• Max. takeoff weight: 193,938 lb (87,969 kg)
• Powerplant: 8 (6 J35-A-19 on the YRB-49A) × Allison/General Electric J35-A-5 turbojets, 4,000 (5,000 for J35-A-19) lbf (17 kN) each

Performance

• Maximum speed: 495 mph (793 km/h)
• Range: 9,978 mi (16,057 km) Maximum
• Combat radius: 1,615 mi (2,599 km)
• Service ceiling: 45,700 ft (13,900 m)
• Rate of climb: 3,758 ft/min (19.1 m/s)
• Wing loading: 33 lb/ft² (163 kg/m²)
• Thrust/weight: 0.23

Armament

• Guns: 4 × .50 in (12.7 mm) machine guns (to be mounted in rotating "stinger" tail cone on all production aircraft)
• Bombs: 32,000 lb (14,500 kg)