AKA: MSBS M4-1. Status: Active. Thrust: 900.00 kN (202,320 lbf). Gross mass: 22,500 kg (49,600 lb). Unfuelled mass: 2,500 kg (5,500 lb). Burn time: 60 s. Height: 5.40 m (17.70 ft). Diameter: 1.93 m (6.33 ft).