RD-107
The RD-107 and its sibling, the RD-108, are a type of rocket engine initially used to launch R-7 Semyorka missiles. RD-107 engines were later used on space launch vehicles based on the R-7. As of 2021, very similar RD-107A and RD-108A engines are used to launch the Soyuz-2.1a, and Soyuz-2.1b, which are in active service.
Rocket engine RD-107 "Vostok" in the Museum of Space and Missile Technology (Saint Petersburg). | |
| Country of origin | Soviet Union, later Russia |
|---|---|
| Designer | OKB-456 |
| Manufacturer | JSC Kuznetsov |
| Application | Booster engine |
| Associated LV | R-7 family of launchers |
| Predecessor | RD-105 |
| Status | In production |
| Liquid-fuel engine | |
| Propellant | LOX / kerosene |
| Cycle | Gas-generator cycle |
| Performance | |
| Thrust, vacuum | RD-107: 1,000 kN (220,000 lbf) RD-107A: 1,020 kN (230,000 lbf) |
| Thrust, sea-level | RD-107: 810 kN (180,000 lbf) RD-107A: 839 kN (189,000 lbf) |
| Specific impulse, vacuum | RD-107: 313 s RD-107A: 320.2 s |
| Specific impulse, sea-level | RD-107: 256 s RD-107A: 263.3 s |
| Dimensions | |
| Dry weight | RD-107: 1,190 kg (2,620 lb) RD-107A1,190 kg (2,620 lb) |
| Used in | |
| First stage boosters for R-7 family | |
| References | |
| References | |
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