Copper Liners in bilge and lazarettes - SailNet Community

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Old 03-30-2010
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Red face Copper Liners in bilge and lazarettes

Any of you knowledgeable salts know why a boat would have large, thin sheets of copper laying as a liner in bilge compartments and lazarettes? new to the site and looking for our next boat! I believe I have this in the correct thread but please let me know if I don't!
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Old 03-30-2010
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might be a ground plane for radio...are there wires attached to it somewhere??

dave
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might be a ground plane for radio...are there wires attached to it somewhere??

dave
Almost certainly to be for SSB/Ham radio installation.
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Is it a wooden boat? If it is for a radio it would be one ground plane not multiples as far as I know.
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So consensus is that it is associated with either an ssb/ham or a radio installation. Next time we look at the boat we will see whether there are any wires attached to it. THANKS for both of your replies.
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Is it a wooden boat? If it is for a radio it would be one ground plane not multiples as far as I know.
No, it is not a wooden boat. We found the liners in three locations I believe. We will do a closer inspection next trip as the boat is on our short list at this point.
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This copper strip pattern can be used as a substitute for a single ground plate. The tip-off will be wires connected at some point going to the radio system.
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Old 03-30-2010
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Most certainly Ham/SSB ground plane. Now ask btrayfors whehter you have to have that much.... come on Bill... we are waiting!! (He is our resident expert on SSB and a great guy, btw).

Brian
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The only concern I would have with copper plates like that in the bilge is if the bilge is normally wet.. that would be a serious galvanic corrosion hazard for any other metal in the bilge. As others have said, it is likely a ground plane for an ssb or ham radio. However, there are ways of doing that which would not present a galvanic corrosion hazard.
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Quote:
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The only concern I would have with copper plates like that in the bilge is if the bilge is normally wet.. that would be a serious galvanic corrosion hazard for any other metal in the bilge. As others have said, it is likely a ground plane for an ssb or ham radio. However, there are ways of doing that which would not present a galvanic corrosion hazard.
On our friend's Passport 40 he glassed it all in with epoxy and a layer of cloth.. so it's not really exposed to anything.
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