Gross Mass: 6,009 kg (13,247 lb). Empty Mass: 785 kg (1,730 lb). Thrust (vac): 35.098 kN (7,890 lbf). Isp: 278 sec. Burn time: 400 sec. Propellants: Nitric acid/UDMH. Isp(sl): 0 sec. Diameter: 1.40 m (4.50 ft). Span: 1.40 m (4.50 ft). Length: 6.28 m (20.60 ft). Country: USA. No Engines: 1. Engine: AJ10-118E. Cost $ : 2.320 million. First Flight: 1965. Last Flight: 1982. No Launched: 57. No Failed: 1.