SpaceX's new raptor engine is a methane fueled full flow staged combustion cycle engine and its so hard to develop, no engine like this has ever flown before!

Now this topic can be really intimidating so in order to bring the Raptor engine into context, we're going to do an overview of a few common types of rocket engine cycles then compare the Raptor to a few other common rocket engines, like SpaceX's current work horse, the Merlin, The Space Shuttle's RS-25, the RD-180, Blue Origin's BE-4 and the F-1 engine.

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