Gross Mass: 9,977,000 kg.
Empty Mass: 680,000 kg. Thrust (vac): 15,095,000 kgf. Isp: 335 sec. Burn time: 203 sec. Propellants: Lox/KeroseneIsp(sl): 310 sec. Diameter: 18.3 m. Span: 26.2 m. Length: 54.3 m. Country: USA. No Engines: 4. L-7.70Status: Study General Dynamics 1963. Comments: Massed estimated based on tank volumes, total thrust, and first stage burnout conditions. Recoverable stage; separation at 3,365 m/s at 89,300 m altitude; splashdown using retrorockets under 8 46 m diameter parachutes 1300 km downrange.