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The Mack Super Pumper was a locomotive engined fire fighter (2018)

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169 points mstngl | 1 comments | 03 Nov 25 20:37 UTC | HN request time: 0.229s | source
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jedberg ◴[03 Nov 25 21:50 UTC] No.45804871[source]▶
My dad worked on the Space Shuttle main engine program in the 80s. One of the things they built was the turbopump [0], which generated 23,000HP (and could drain your average home swimming pool in one minute).

Seeing the test firings of the pump was pretty amazing, draining one "swimming pool" and filling another in a minute.

[0] https://en.wikipedia.org/wiki/RS-25#Turbopumps

replies(3): >>45805078 #>>45806333 #>>45809409 #
1. HPsquared ◴[04 Nov 25 10:29 UTC] No.45809409[source]▶
That's always blown my mind about rocket engines. If the FUEL PUMP has that much power, the overall machine energy flow must be insane. Especially in such a small package.