The RD-0236 (GRAU Index 15D114) is a liquid rocket vernier engine, burning N2O4 and UDMH in the gas generator cycle.[3][1] It is used along the RD-0235 main engine on the UTTKh second stage, which was featured in the UR-100N ICBM as well as the Strela and Rokot launch vehicles derived from it. Its function is to supply thrust vector control by gimbaling each of its four nozzles in a plane.[2] While the engine is out of production, the ICBM as well as Strela remain operational as of 2015.[4] The Rokot launch vehicle conducted its final launch before retirement in December 2019.[5]

RD-0236 (РД-0236)
Country of originUSSR
First flight1973-04-09[1]
ApplicationVernier engine
Associated LVUR-100N, Rokot and Strela[1]
StatusOut of Production
Liquid-fuel engine
PropellantN2O4[1] / UDMH[1]
CycleGas Generator[1]
Thrust15.76 kilonewtons (3,540 lbf)[2]
Specific impulse, vacuum293 s (2.87 km/s)[2]
Used in
UR-100N second stage[2]

See alsoEdit


  1. ^ a b c d e f g "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. ^ a b c d e "RD-0236". Encyclopedia Astronautica. Archived from the original on May 5, 2002. Retrieved 2015-06-19.
  3. ^ "Rockot Launch Vehicle". Khrunichev State Research and Production Space Center. Archived from the original on 27 May 2011.
  4. ^ Zak, Anatoly. "UR-100N Family". RussianSpaceWeb.com. Retrieved 2015-06-19.
  5. ^ Graham, William (2019-12-26). "Rokot conducts final launch – carries three Gonets-M satellites to orbit". NASASpaceFlight.com. Retrieved 2020-03-06.

External linksEdit

  • KbKhA official information on the engine. (Archived)
  • Encyclopedia Astronautica information on the propulsion module. (Archived)