I bet the size difference plays a role, and a car turbo that spins to 200k rpm w... | Hacker News

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MaxikCZ 29 days ago | parent | context | favorite | on: 9000 RPM is faster than your screen refreshes

I bet the size difference plays a role, and a car turbo that spins to 200k rpm will definetly be smaller than a turbopump for rocket engine.

hugo1789 29 days ago [–]

Yes it does, it matters a lot. With smaller dimensions, tip speeds remain manageable. As soon as parts of the thing get supersonic, everything gets much more complicated.

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