North American XB-70 Valkyrie - Specifications (XB-70A)

Specifications (XB-70A)

Data from Pace, USAF XB-70 Fact sheet B-70 Aircraft Study

General characteristics

  • Crew: 2
  • Length: 189 ft 0 in (57.6 m)
  • Wingspan: 105 ft 0 in (32 m)
  • Height: 30 ft 0 in (9.1 m)
  • Wing area: 6,297 ft² (585 m²)
  • Airfoil: Hexagonal; 0.30 Hex modified root, 0.70 Hex modified tip
  • Empty weight: 253,600 lb (115,030 kg; operating empty weight)
  • Loaded weight: 534,700 lb (242,500 kg)
  • Max. takeoff weight: 542,000 lb (246,000 kg)
  • Powerplant: 6 × General Electric YJ93-GE-3 afterburning turbojet
    • Dry thrust: 19,900 lbf (84 kN) each
    • Thrust with afterburner: 28,800 lbf (128 kN) each
  • Internal fuel capacity: 300,000 lb (136,100 kg) or 46,745 US gallons (177,000 L)

Performance

  • Maximum speed: Mach 3.1 (2,056 mph, 3,309 km/h)
  • Cruise speed: Mach 3.0 (2,000 mph, 3,200 km/h)
  • Range: 3,725 nmi (4,288 mi, 6,900 km) on combat mission
  • Service ceiling: 77,350 ft (23,600 m)
  • Wing loading: 84.93 lb/ft² (414.7 kg/m²)
  • lift-to-drag: about 6 at Mach 2
  • Thrust/weight: 0.314

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