Status: Study 1959. Thrust: 353.00 kN (79,357 lbf). Gross mass: 68,000 kg (149,000 lb). Unfuelled mass: 9,000 kg (19,800 lb). Specific impulse: 420 s. Specific impulse sea level: 306 s. Burn time: 672 s. Height: 11.90 m (39.00 ft). Diameter: 3.00 m (9.80 ft). Span: 3.00 m (9.80 ft).