Status: In development. Thrust: 1,304.00 kN (293,150 lbf). Gross mass: 158,500 kg (349,400 lb). Unfuelled mass: 20,500 kg (45,100 lb). Specific impulse: 448 s. Burn time: 450 s. Height: 25.60 m (83.90 ft). Diameter: 5.50 m (18.00 ft). Span: 5.50 m (18.00 ft).