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“The Raptor engine is another advanced innovation, as it is the first full-flow staged combustion rocket engine ever flown and produces the highest combustion chamber pressure ever reached by an operational rocket engine (330 bars). The previous record holder did 290 to 300 bar in one mode of operation is the (Soviet's RD-701 engine) in the 1980s.” — Tiisetso Maloma
The Raptor engine is another advanced innovation, as it is the first full-flow staged combustion rocket engine ever flown and produces the highest combustion chamber pressure ever reached by an operational rocket engine (330 bars). The previous record holder did 290 to 300 bar in one mode of operation is the (Soviet's RD-701 engine) in the 1980s.