This whole corrosion thing was predictable. The Independence is mostly aluminum with steel for the propellers, engines, etc. It's well known that this will cause corrosion in seawater from electrochemical effects. The fix is something called a cathodic protection system. Again, this is well understood. The original system, was, big surprise, deleted to save money, and replaced by a much less robust one, which did not do the job. The Navy is now paying to backfit the cathodic system into the Independence. It can be completely and totally fixed, but the Navy has a penchant in these difficult budgetary times for self-inflicted wounds like this.

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