RD-120MS

    • RD-120MS

    Purpose:
    For the upper stages of promising Russian and foreign launch vehicles.
    Year of release: 2022
    Flight qualification of the product: No
    Brief history of flight qualification:
    The engine prototype was used at the 2nd stage of the Zenit launch vehicle.
    Possibility to adapt the product to customer requirements: Yes
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    Parameter Value
    Thrust, earth / void, tf - / 93
    Specific impulse, earth / void, s - / 351
    Pressure in the combustion chamber, kgf / cm2 181,6
    Weight, dry / dipped, kg 1450/1610
    Dimensions height / diameter, mm 4714/2600
    Development period Basic - since 1976, forced - 2001-2003 modification - 2019-2022
    Thrust vector control (2 channels) due to camera swing in two planes, o 4
    Thrust range,% 100-78

    Description

    Modification of the RD120 liquid rocket engine with afterburning of oxidizing gas for the upper stages.
    Fuel: oxygen + kerosene.
    A number of new technologies are widely used in engine design.

    Remark

    The basic engine RD-120 was developed in 1976-1985. The first launch of the Zenit launch vehicle with the RD-120 engine was performed on April 13, 1985. The modernized RD-120 engine: thrust up to 93 tf is boosted. The first launch of the Zenit launch vehicl
    ... The basic engine RD-120 was developed in 1976-1985. The first launch of the Zenit launch vehicle with the RD-120 engine was performed on April 13, 1985. The modernized RD-120 engine: thrust up to 93 tf is boosted. The first launch of the Zenit launch vehicle with the boosted RD-120 engine under the Sea Launch program was completed on February 28, 2005. A total of 295 engines were manufactured, 588 bench fire tests were conducted with an operating time of 141608 s.
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