The RD-214 (GRAU Index 8D59) was a liquid rocket engine, burning AK-27I (a mixture of 73% nitric acid and 27% N2O4 + iodine passivant and TM-185 (a kerosene and gasoline mix) in the gas generator cycle.

[2][3] As was the case with many V-2 influenced engines, the single turbine was driven by steam generated by catalytic decomposition of hydrogen peroxide.

It also had four combustion chambers and vector control was achieved by refractory vanes protruding into the nozzle's exhaust.

[5] The four chambers were fed from a single turbopump powered by steam generated from catalytic decomposition of hydrogen peroxide.

[8] When Yangel's OKB-586 was tasked with developing the first storable propellant ballistic missile in the Soviet arsenal, the RD-211 proved too weak.