[tim333]

Here's a guy with a 48,000 HP marine turbine for doing ships propellers. https://www.navyhistory.org/2016/12/commercial-use-of-marine...

And some other images https://www.google.co.uk/search?q=Rolls-Royce+MT+30&sxsrf=AP...

It's not as small and powerful as the SpaceX one but I guess it needs some extra bits. Also it runs off air rather than liquid oxygen which must reduce power a tad.