RPS completed hot-fire testing of its preburner today. The preburner operates on liquid oxygen (LOX) and liquid natural gas (LNG) propellants and is a critical power generation component of the Centurion staged combustion liquid rocket engine. The test campaign spanned (54) tests and validated preburner performance at full power, ability to deep-throttle to 25% power level, stability and reusability. We are moving on to thrust chamber hot-fire testing next!