AKA: National Launch System;NLS HLV. Status: Study 1991. Thrust: 14,310.00 kN (3,217,010 lbf). Gross mass: 833,732 kg (1,838,064 lb). Unfuelled mass: 62,757 kg (138,355 lb). Specific impulse: 425 s. Specific impulse sea level: 350 s. Burn time: 221 s. Height: 52.00 m (170.00 ft). Diameter: 8.70 m (28.50 ft). Span: 8.70 m (28.50 ft).
Cost $ : 59.000 million. No Engines: 4.