Kosberg LOx/LH2 rocket engine. Energia-M core stage. Planned for Angara central stage. Developed 1990-. Upgrade of RD-0120 engine for Energia-M launcher with increased thrust. Prototype from RD-0120 hardware.
Status: Developed 1990-. Date: 1990-. Thrust: 2,313.00 kN (519,983 lbf). Specific impulse: 461 s.
Later an upgraded RD-0122 was planned for use in the central stage of an early version of the Angara heavy launcher.