LOx/Kerosene propellant rocket stage. Two thrust levels. Propellant ration 2.6:1, chamber pressure 162 bar.
Status: In development. Thrust: 294.00 kN (66,093 lbf). Gross mass: 25,200 kg (55,500 lb). Unfuelled mass: 2,355 kg (5,191 lb). Specific impulse: 359 s. Burn time: 300 s. Height: 6.70 m (21.90 ft). Diameter: 2.66 m (8.72 ft). Span: 2.66 m (8.72 ft).