Rockwell—B-1 Lancer: Specification Rockwell—B-1B Wing: span 136 ft 8.5 in (41.67 m) spread and 78 ft 2.5 in (23.84 m) swept; area 1,950.0 sq ft (181.16 m2) Fuselage and tail: length 147 ft 0 in (44.81 m); height 34 ft 10 in (10.62 m); tailplane span 44 ft 10 in (13.67 m); wheel base 57 ft 6 in (17.53 m) Powerplant: four General Electric F101-GE-102 each rated at 14,600 lb (64.94 kN) dry and 30,780 lb (136.92 kN) afterburning thrusts Weights: empty equipped 192,000 lb (87,091 kg); maximum take-off 477,000 lb (216,367 kg) Fuel and load: internal fuel 195,000 lb (88,452 kg); maximum ordnance 75,000 lb (34,020 kg) carried internally and 59,000 lb (26,762 kg) carried externally Speed: maximum level speed 'clean' at high altitude about 825 mph (1,328 km/h); penetration speed at about 200 ft (61 m) more than 600 mph (965 km/h) Range: maximum range on internal fuel about 7,455 miles (12,000 km) Performance: service ceiling more than 50,000 ft (15,240 m)