On Costliest U.S. Warship Ever, Navy Can’t Get Munitions on Deck

Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by liability on Tuesday July 30, 2019 @04:38PM (#20568872)

Well, at least the front hasn't fallen off. The LCS-2 had problems like aggressive galvanic corrosion between the aluminum hull and steel propulsion system due to inadaquate isolation. Any small boat owner could have told you that dissimilar metals and salt water are a bad mix unless you use sacrificial anodes and take measures to eliminate current flow. Yet the USN botched it.

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by frankharv on Tuesday July 30, 2019 @08:57PM (#20570775)

I too have knowledge of these issues and they are devastating.

On top of dissimilar metal issues there are also different aluminum grades involved in the construction. (meaning training+certs needed to work on these for most yards)

So on top of zero survivability in a hostile env they are not going to last 15 years.

Back when I was in, Ronnie wanted a 600 ship navy. Now we have <350 and that is counting these glorified ferrys.

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by filoeleven on Tuesday July 30, 2019 @11:44PM (#20571556)

I really thought your comment was going to be a reference to this sketch. “The front fell off” is...not something one expects to be a realistic scenario.

https://youtu.be/3m5qxZm_JqM

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by qtplatypus on Wednesday July 31, 2019 @12:27AM (#20571715)

The sketch is in reference to a real ship https://en.m.wikipedia.org/wiki/Kirki_(tanker) in which the bow split after it caught fire.

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by liability on Wednesday July 31, 2019 @12:39AM (#20571745)

I padded it out with a bit more substance, but the first revision of my comment was just a reference to that sketch. Remembering the sketch reminded me of the LCS-2 hull issue.

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by vonmoltke on Tuesday July 30, 2019 @05:18PM (#20569271)

I can't believe they went for an aluminum hull after the Royal Navy's disastrous experience with the Type 21 frigates.

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by Gibbon1 on Tuesday July 30, 2019 @07:11PM (#20570162)

Not to mention the USS Stark where the aluminum superstructure caught fire after being hit by a dud Exocet.

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by scottlocklin on Wednesday July 31, 2019 @04:31AM (#20572598)

Better hope nobody drops a zinc penny in the bilge.

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by qtplatypus on Wednesday July 31, 2019 @10:41PM (#20580719)

After a bit of research I was a little confused. According to my research you can use sink as a sacrificial anode for Al depending on the exact alloy you are using.

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Re:On Costliest U.S. Warship Ever, Navy Can’t Get Munitions ... by scottlocklin on Thursday August 01, 2019 @06:26AM (#20582590)

Owners of aluminum boats make guests empty their pockets of loose change, because a penny in the bilge of an aluminum boat will punch a hole in the hull. I did make a mistake; has to be an old style copper penny for maximum galvanic corrosion.

It's a fairly lousy material for boats, though people use it anyway.

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