"Sailboat Restorations, Inc." wrote: > > > I hadn't heard the shark story before; fascinating. But not all aluminums > > are subject to corrosion in salt water. > > Indeed, there are many aluminum hulled sailboats cruising the oceans of the > world. Last I knew, it was considered an excellent material for a hull, and > you see them with no paint or exterior coating. A bit expensive, and one > does of course always have to be aware of galvanic corrosion (which arises > mostly from the *contact* of certain dissimilar metals with each other in a > salt water environment). I also have a small daysailor that has an aluminum > rudder, which has performed well since the boat was born in 1978. So far, > no shark attacks (knock on fiberglass). And, lots of gill net boats around here are all-aluminum. No shark attacks, AFAIK, over the some 25 years I have lived here. BTW, MJE, they are definitely not 6061 alloy. Something in the 5000 series, IIRC. Not necessarily related is the fact that salmon trollers intentionally put a little voltage onto their trolling wires -- they claim it improves their catch. And, no, I can't verify that, either. It could just be folklore ... like the "sturgeon's whistle" my fishing buddy blows when the bite is slow. He claims it works better than peanut shells but I hold out for loading up both of my hands with food -- that brings on a sturgeon bite for sure! -- Dave Kruger Astoria, OR *************************************************************************** PaddleWise Paddling Mailing List - All postings copyright the author and not to be reproduced/forwarded outside PaddleWise without author's permission Submissions: PaddleWise_at_PaddleWise.net Subscriptions: PaddleWise-request_at_PaddleWise.net Website: http://www.paddlewise.net/ ***************************************************************************Received on Sun Oct 15 2000 - 02:38:58 PDT
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