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
| 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 |
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 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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