Status: Study 1959. Thrust: 7,640.00 kN (1,717,540 lbf). Gross mass: 499,000 kg (1,100,000 lb). Unfuelled mass: 35,000 kg (77,000 lb). Specific impulse: 304 s. Specific impulse sea level: 265 s. Burn time: 177 s. Height: 12.50 m (41.00 ft). Diameter: 9.80 m (32.10 ft). Span: 9.80 m (32.10 ft).