RD-0233

The RD-0233 (GRAU Index 15D95) and RD-0234 (GRAU Index 15D96) are liquid rocket engines, burning N2O4 and UDMH in the oxidizer rich staged combustion cycle.[3][1][2] The only difference between the RD-0233 and the RD-0234 is that the latter has a heat exchanger to heat the pressuring gasses for the tanks.[4] Three RD-0233 and one RD-0234 are used on the first stage of the UR-100UTTKh ICBM.[5] While the engine is out of production, the ICBM as well as Rokot and Strela remain operational as of 2015.[5]

RD-0233 (РД-0233)
Country of originUSSR
First flight1973-04-09[1]
DesignerOKB-154[1]
Associated LVUR-100N, Rokot and Strela[1]
StatusOut of Production
Liquid-fuel engine
PropellantN2O4[1] / UDMH[1]
CycleOxidizer Rich Staged Combustion[1]
Configuration
Chamber1[2]
Performance
Thrust520 kilonewtons (120,000 lbf)[2]
Chamber pressure20.5 megapascals (2,970 psi)[2]
Specific impulse, vacuum310 s (3.0 km/s)[2]
Specific impulse, sea-level285 s (2.79 km/s)[2]
Burn time121 seconds[2]
Used in
UR-100N core stage[2]

See also

References
  1. "RD-0233, RD-0234, RD-0235, RD-0236, RD-0237. Intercontinental ballistic missiles RS-18". KBKhA. Archived from the original on 5 May 2014.
  2. "RD-0233". Encyclopedia Astronautica. Archived from the original on 2015-08-24. Retrieved 2015-06-19.
  3. "Rockot Launch Vehicle". Khrunichev State Research and Production Space Center. Archived from the original on 27 May 2011.
  4. "RD-0234". Encyclopedia Astronautica. Archived from the original on 2015-08-24. Retrieved 2015-06-19.
  5. Zak, Anatoly. "UR-100N Family". RussianSpaceWeb.com. Retrieved 2015-06-19.
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