Boeing—B-52 Stratofortress: Specification Boeing—B-52H Wing: span 185 ft 0 in (56.39 m); area 4,000.0 sq ft (371.6 m2) Fuselage and tail: length 160 ft 10.9 in (49.05 m); height 40 ft 8 in (12.40 m); tailplane span 55 ft 7.5 in (16.95 m); wheel base 50 ft 3 in (15.48 m) Powerplant: eight Pratt & Whitney TF33-P-3 each rated at 17,000 lb (75.62 kN) dry thrust Weight: maximum take-off more than 505,000 lb (229,068 kg) Fuel and load: internal fuel 299,434 lb (135,823 kg); external fuel up to 9,114 lb (4,134 kg) in two 700-US gal (2,650-liter) underwing tanks; maximum ordnance about 50,000 lb (22,680 kg) Speed: maximum level speed 'clean' at high altitude 595 mph (957 km/h); cruising speed at high altitude 509 mph (819 km/h); penetration speed at low altitude between 405 and 420 mph (652 and 676 km/h) Range: maximum range on internal fuel more than 10,000 miles (16,093 km) Performance: service ceiling 55,000 ft (16,764 m); take-off distance 9,500 ft (2,896 m)