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From: AlaskaTrawler (no email)
Date: Thu Jul 03 2003 - 00:19:27 EDT
Hello
In purchasing a steel vessel of any kind (sail or power ) there are some
very important things you should know. The first thing is in my opinion over
all else is how corrosion has been managed. In my view it would be a plus if
the vessel had been sprayed with urethane foam from the time it was
constructed. In my view foam is the greatest extender of life of a steel
hull. First it completly seals off moisture and oxygen from the steel. Rust
can't begin unless those two element are present. Further it fills all voids
where water can sit and begin the corrosion process process. The type of
foam you use is also important. Using a 3lb closed cell foam in the bilge
will give you a very impervious coating to any kind of air or water
penetration. It is normally applied to complete exteriors of homes in
arctic. As far as checking the condition of the steel under the
foam.....that is hard to do without actually chiseling out a section and
looking at the steel. If the vessel is old and the foam recently applied
then I would worry about it.Sounding the hull? I think if the vessel is well
cared for and shows no signs or very little signs of corrosion I would not
worry about it. You can't put foam everywhere so look around the stern tube,
down under the water tanks if you can, If all looks well the boat should be
in good shape. If not sure hire a marine surveyor knowledgeable of steel
vessels.
As far as magnetic interference with your compass. Most steel vessels use a
special compass with a magnetic sphere located on each side of the compass
to correct the deviation caused by the steel hull. There are many very
reliable electronic compasses that are not affected by the steel hull and
therfore work very well also. I plan on installing an electronic compass by
Simrad and using the helm compass for redundancy.
As far as how your compass will behave in your binoculars I can't answer
that. I suppose it would be affected to some degree.
Regards
Dan Walsh
Building MV Spirit Of Balto
www.alaskatrawler.com
From:
"edmdgd" <>
To: <>
Sent: Tuesday, July 01, 2003 3:42 PM
Subject: [world-cruising] Steel Boat Purchase
> Opinions from the Group please
>
> I have always in the past owned Fiberglass boats. I am contemplating
> a long term cruise with a new vessel preferably of steel (new to me
> that is). As some of the boats that I am looking at are out of the
> country (USA) I am a little wary of the process. May I ask your
> opinions on what to look for. Is sounding necessary?.What does
> sounding cost?. Is repair on an Origami (frameless) as easy to repair
> in out of the way places as the framed boat design. How is metal
> condition under sprayed foam evaluated?. Am I correct in assuming
> that the compass in my binoculars will no longer act appropiately?.
> Hand bearing compass same problem?. I am sure I have many more areas
> of concern but maybe your answers will cover them.
>
> Thanks
> Gerad
>
>
[Non-text portions of this message have been removed]
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