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For those (who like me until a few minutes ago) do not know what a Raptor engine is:
Raptor (rocket engine) - Wikipedia, the free encyclopedia
You can make methane on Mars.Any ideas why they want to go with methane instead of hydrogen? Hydrogen + Oxygen = only heat and water. Same can not be said for methane. Plus I seem to remember the hydrogen has a higher specific impulse.
You can make methane on Mars.
So, if i read correctly the Raptor will have a lower thrust force, but it will be more efficent means less methane/oxigen needed for the same thrust?You will probably be hearing about BO's BE-4 Methane/LOX engine in comparison to the Raptor Methane/LOX. The BE-4 will be using a Merlin style open cycle engine with the Methane/LOX combination. So not as difficult to make or as efficient as the Raptor will be. FYI.
Oops. I should have included that detail as part of the announcement. Thanks for posting.
...You will probably be hearing about BO's BE-4 Methane/LOX engine in comparison to the Raptor Methane/LOX. The BE-4 will be using a Merlin style open cycle engine with the Methane/LOX combination. So not as difficult to make or as efficient as the Raptor will be. FYI.
Hydrogen has a much lower boiling point as well as a bunch of other pretty nasty chemical characteristics.
Wow! That looks fantastic!