Status: Study 1960. Thrust: 892.00 kN (200,529 lbf). Gross mass: 227,000 kg (500,000 lb). Unfuelled mass: 23,000 kg (50,000 lb). Specific impulse: 425 s. Specific impulse sea level: 306 s. Burn time: 941 s. Height: 30.50 m (100.00 ft). Diameter: 6.70 m (21.90 ft). Span: 6.70 m (21.90 ft).