Status: Study 1961. Thrust: 266.80 kN (59,979 lbf). Gross mass: 32,470 kg (71,580 lb). Unfuelled mass: 7,708 kg (16,993 lb). Specific impulse: 800 s. Burn time: 720 s. Height: 16.56 m (54.33 ft). Diameter: 10.06 m (33.00 ft). Span: 10.06 m (33.00 ft).