Oh wow that photo is from years ago but you’re correct, this is the first flight of that design
replySN1 was a test engine, the flight engines are even cleaner https://fixupx.com/interstellargw/status/2057165036196409820
replyThe stats are pretty out there. Iirc just the fuel pump, which you can probably pick up and put on your desk, generates 100k HP.
replyWell, it's powered by bleeding exhaust from a very big rocket.
replyOne of my favorite clips to give a sense of scale for rockets is this one. https://www.youtube.com/watch?v=70u748VALt4
replyI show someone and then I tell them, that's not the rocket exhaust. That's the exhaust for the engine that runs the fuel pump for the rocket.
Nope, Raptor is full flow staged combustion, so both the fuel and oxidizer have dedicated preburners and turbopumps each.
replyThanks for that correction!
replyBooster dry mass savings of around one ton per engine iirc.
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