Status: Study 1968. Thrust: 889.33 kN (199,928 lbf). Gross mass: 245,760 kg (541,800 lb). Unfuelled mass: 71,190 kg (156,940 lb). Specific impulse: 825 s. Burn time: 1,500 s. Height: 48.17 m (158.03 ft). Diameter: 10.06 m (33.00 ft). Span: 10.06 m (33.00 ft).