AKA: ROOST ISI. Status: Study 1963. Thrust: 101,842.00 kN (22,894,992 lbf). Gross mass: 6,218,000 kg (13,708,000 lb). Unfuelled mass: 435,000 kg (959,000 lb). Specific impulse: 455 s. Specific impulse sea level: 365 s. Burn time: 249 s. Height: 67.10 m (220.10 ft). Diameter: 21.30 m (69.80 ft). Span: 21.30 m (69.80 ft).
Cost $ : 154.000 million. No Engines: 18.