Status: Study 1965. Thrust: 956.10 kN (214,940 lbf). Gross mass: 118,800 kg (261,900 lb). Unfuelled mass: 12,900 kg (28,400 lb). Specific impulse: 421 s. Specific impulse sea level: 200 s. Burn time: 450 s. Height: 17.80 m (58.30 ft). Diameter: 6.61 m (21.68 ft). Span: 6.61 m (21.68 ft).