What Does OPB Stand For?

OPB stands for Oxidizer Preburner

OPB, or Oxidizer Preburner, is a critical component in rocket propulsion systems that serves to partially combust oxidizer with fuel to generate high-pressure gas. This gas is directed into the main combustion chamber or used to drive turbopumps, enhancing overall engine performance and efficiency. The OPB plays a vital role in propulsion systems by ensuring optimal fuel and oxidizer mixture ratios, contributing to thrust generation and stability during launch operations.