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Copper plate found on hull...

2137 Views 15 Replies 7 Participants Last post by  aa3jy
Hello All! Took boat out in the river, put on scuba gear and dove to scrub hull and put new shaft zinc on. Found a thick copper plate on stbd side. 3/4 inches thich, 14 inches long, 4 inches wide, pointed on forward end, flat on the aft end. So, I reckon it's a grounding plate for SSB or to ground against lightning?? Can anyone tell me how it is connected? I'm thinking to the lead in the keel and then via the stainless keel bolts? Very interesting... Have never seen any copper strap or braid anywhere in bilge, but wasn't really looking. Thanks for any help/advice. You guys are the most knowledgable! Kevin
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One never know how others are thinking, maybe some PO has thought it was good to make grounding the way you describe - doesn't sound great, though.

Sure there is no connection to inside?

Most use of large Cu plates are either grounding or cooling. Both cases there should be a connection on the inside of the boat.

There are of course more exotic possible uses och a Cu plate: blocking a hole, hope to work as antifouling, ....

1 - 1 of 16 Posts
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