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mrlonglong11/03/20251 replyview on HN

They're unique. Originally designed to power fast torpedo boats during WW2, three of these powerful and compact engines would churn out plenty of power for the boat up to 50 kt.

https://everythingaboutboats.org/napier-deltic/


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mrlonglong11/03/2025

They're still in use by our UK navy. Nine minesweepers still on active duty.

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