RD-263
The RD-263 is a liquid rocket engine, burning N2O4 and UDMH in the oxidizer rich staged combustion cycle. Four RD-263 engines form a propulsion module RD-264. For the R-36M KB Yuzhnoye only ordered the first stage propulsion to Energomash, instead of both stages, arguing that they were overworked with the RD-270 development. By April 1970 Yuzhnoye was getting the engine documentation. By the end of 1972 Energomash started to test fire the engines in its own test stand. And by September 1973 the engine was certified for flight. While the engine is out of production, the ICBM as well as the Dnepr remain operational as of 2015.Versions
The basic engine has been used for the
Some of these engines were bundled into modules of multiple engines. The relevant modules and auxiliary engines are:
- RD-264 : A module comprising four RD-263. Propulsion module of the R-36M and R-36MUTTKh first stage.
- RD-274 : A module comprising four RD-273. Propulsion module of the R-36M2 and first stage.
