AKA: Chang Cheng 1. Status: Design 1988. Thrust: 490.00 kN (110,150 lbf). Gross mass: 57,000 kg (125,000 lb). Unfuelled mass: 30,000 kg (66,000 lb). Specific impulse: 230 s. Burn time: 430 s. Height: 24.00 m (78.00 ft). Diameter: 4.50 m (14.70 ft). Span: 17.00 m (55.00 ft).