RD-0110

The RD-0110 is a liquid-fueled rocket engine developed in the Soviet Union/Russia by KBKhA (Chemical Automatics Design Bureau). It is a single-nozzle engine that burns kerosene (RP-1) and liquid oxygen (LOX) in a gas-generator cycle.

The RD-0110 is primarily known for its use as the upper stage engine of the Soyuz family of rockets. It provides the final thrust needed to place payloads into their desired orbits. It is a crucial component in the Soyuz's reliable track record.

Key features of the RD-0110 include its high specific impulse for an engine of its type, contributing to the Soyuz rocket's efficiency in reaching orbit. It is also restartable, allowing for precise orbital maneuvering and placement of satellites. The engine is known for its relatively simple and robust design, contributing to its high reliability and long operational history. Over the years, incremental improvements and modifications have been made to the RD-0110 design to enhance its performance and reliability.