AKA: Descent Stage. Status: Operational 1968. Thrust: 44.04 kN (9,901 lbf). Gross mass: 10,149 kg (22,374 lb). Unfuelled mass: 1,984 kg (4,373 lb). Specific impulse: 311 s. Height: 2.83 m (9.28 ft). Diameter: 4.21 m (13.81 ft).
Spacecraft delta v: 2,470 m/s (8,100 ft/sec). Electric System: 33.00 kWh. Battery: 1,600.00 Ah.