Status: Design 1975. Thrust: 1,860.00 kN (418,140 lbf). Gross mass: 161,000 kg (354,000 lb). Unfuelled mass: 11,000 kg (24,000 lb). Specific impulse: 346 s. Specific impulse sea level: 246 s. Burn time: 270 s. Height: 20.00 m (65.00 ft). Diameter: 4.15 m (13.61 ft). Span: 4.15 m (13.61 ft).