RD-181
- Purpose: Engines for the first stage of the advanced Antares launch vehicle.
- Year of release: 2015
- Guaranteed service life (years): 11
- Estimated production / delivery time (months): 14
- Flight qualification of the product: Yes
- Brief history of flight qualification: 6 launches (02.11.2019).
- Possibility to adapt the product to customer requirements: Yes
| Parameter | Value |
|---|---|
| Thrust, earth / void, tf | 196/212 |
| Specific impulse, earth / void, s | 311 / 339 |
| Pressure in the combustion chamber, kgf / cm2 | 262.6 |
| Weight, dry / dipped, kg | 2200/2330 |
| Dimensions height / diameter, mm | 3680 / 2100 |
| Development period | 2014-2015 |
| Thrust vector control (2 channels) due to camera swing in two planes, o | 8 |
| Thrust range,% | 105-30 |
Liquid rocket engine with afterburning of oxidizing gas. Fuel: oxygen + kerosene.
Remark
The engine has the widest range of thrust regulation from 105-30%.
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