From Wikipedia, the free encyclopedia
The RD-107 is a type of rocket engine that was initially used to launch R-7 Semyorka missiles. RD-107 engines were later used on space launch vehicles based on the R-7. Currently, very similar RD-117 engines are used to launch the Soyuz FG, which is in active service.[1]
[edit] Design
The RD-107 was designed under the direction of Valentin Glushko at the Gas Dynamics Laboratory-Experimental Design Bureau (OKB-456) between 1954 and 1957. It uses liquid oxygen and kerosene as propellants, with each engine comprised of four combustion chambers which share a single set of turbopumps.
[edit] Specifications
- Thrust 813 kN (183 klbf) at liftoff
- Thrust 991 kN (223 klbf) in vacuum
- Specific impulse 245 kgf·s/kg (2.40 kN·s/kg) at liftoff
- Specific impulse 310 kgf·s/kg (3.04 kN·s/kg) in vacuum
- Chamber pressure 5.85 MPa (848 psi)
- Propellants: Lox/kerosene
[edit] References
- ^ RD-117. Encyclopedia Astronautica.
