The RD-0237 (Russian: Ракетный Двигатель-0237, romanized: Raketnyy Dvigatel-0237, lit. 'Rocket Engine 0237', GRAU index: 15D114) is a vernier thruster engine used on liquid-fueled rockets burning a hypergolic mixture of unsymmetrical dimethylhydrazine (UDMH) fuel with dinitrogen tetroxide (N2O4) oxidizer, pressure-fed to the engine. It is used on the UR-100UTTKh MIRV vehicle to supply thrust vector control by gimbaling of its nozzle. While the engine is out of production, the ICBM and Strela remain operational as of 2015.
See also
UR-100N - ICBM for which this engine was originally developed for. Strela Rocket engine using liquid fuel
References
External links KbKhA official information on the engine. (Archived) Encyclopedia Astronautica information on the propulsion module. (Archived)