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Sounds like a job for the metallurgists alright. Textured Monel? But any non-rusting metal would also develop a polish very quickly that would be a no-no from a visibility point of view.

Maybe...

Maybe some pop-up high pressure sprinklers are in order? ;) Sounds pretty time consuming to replace. https://www.navy.mil/submit/display.asp?story_id=51351

The next major naval war is certainly going to be revealing. I doubt the survivability of surface ships is anything like as good as it will need to be to compensate for the power and accuracy of...