The U.S. Navy’s Big Mistake: Building Tons of Supercarriers

Re:The U.S. Navy’s Big Mistake: Building Tons of Supercarriers by Nokinside on Tuesday June 14, 2016 @09:32AM (#11901885)

Diesels are used only when the ship recharges batteries. When the sub is underwater, they can run very silently and be completely silent when they stop.

Nuclear subs generate noise and vibration from the steam turbines, pipes etc. that can't be completely eliminated.

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Re:The U.S. Navy’s Big Mistake: Building Tons of Supercarriers by dctoedt on Tuesday June 14, 2016 @03:08PM (#11904491)

> When the sub is underwater, they can run very silently and be completely silent when they stop.

True, but diesel boats normally run on the surface, and on diesel, because battery life is limited; they generally submerge only to run an attack or to escape an attacker (or briefly at dawn, in case there's an unpleasant surprise out there that wasn't picked up). That's why nuclear submarines were once referred to as the first true submarines, as opposed to mere submersibles.

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Re:The U.S. Navy’s Big Mistake: Building Tons of Supercarriers by Nokinside on Thursday June 16, 2016 @10:09AM (#11916191)

Modern air independent propulsion equipped diesel electric submarines have underwater endurance for several weeks. Even if they sprint full speed non-stop they could stay submerged several days.

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Re:The U.S. Navy’s Big Mistake: Building Tons of Supercarriers by DennisP on Tuesday June 14, 2016 @11:05AM (#11902431)

Ahh, makes sense, thanks.

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