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Tuesday, October 16, 2007

US Navy admits its largest class of warships have serious structural defects

The U.S. Navy (USN) has admitted that many of its 51 Arleigh Burke-class destroyers currently in service have serious structural defects, with repairs and bow-strengthening work to cost at least $62 million (USD), Jane’s Navy International has revealed.

The USN has confirmed to Jane’s ‘class-wide’ structural buckling in the destroyers, with a source saying the impact of rough-sea slamming on the bow has led to the warping of main transverse bulkhead beams and some of the cribbing.

According to a presentation on September 21 by Rear Admiral Kevin McCoy, the chief engineer at Naval Sea Systems Command’s Naval Systems Engineering Directorate, the problem is widespread: structural analysis “indicated that the loads encountered by the damaged ships are significantly higher than those anticipated in original ship specifications. The higher loads are most likely due to bow slamming.”

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