Gross Mass: 83,560 kg.
Empty Mass: 6,883 kg. Thrust (vac): 45,193 kgf. Isp: 335 sec. Burn time: 560 sec. Propellants: H2O2/KeroseneDiameter: 6.3 m. Span: 39.5 m. Length: 57.5 m. Country: USA. No Engines: 7. JP-5/H2O2Status: Study, USAF, 1993. Comments: Winged, single stage to orbit launch vehicle using aerial refueling and lower performance, non-cryogenic propellants. Takes off from runway at 48,452 lbs gross weight; rendezvous with tanker to load 146,870 lbs oxidizer; then flies to orbit. .