The engine uses a design called full-flow staged combustion, where both the engine’s fuel and oxidizer — liquified natural gas and liquid oxygen, respectively — go through separate preburners before going into the main combustion chamber.
The engine uses a design called full-flow staged combustion, where both the engine’s fuel and oxidizer — liquified natural gas and liquid oxygen, respectively — go through separate preburners before going into the main combustion chamber.
how
How is their second stage different, I guess you are asking?
They will use a 30 (I believe) nozzle engine that works like an aerospike and is steered but not gimbaled (they throttle chambers/nozzles instead), cool the exterior with the fuel, and use a traditional capsule shape overall. Might just work