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[PSUBS-MAILIST] Re: Fiberglass
On Mon, 17 Jan 2000 16:56:30 +0100 MerlinSub@t-online.de (Carsten
Standfuß) writes:
>They build two types of subs in 1964 in Germany in fiberglass.
The magazine said that, as of Janauary 1964, a two-place version would
be available by the Spring of '64. The single-place version was for
sale
in September of 1963. I bet if I looked back at boating magazines in
late '63 and early '64, I could find out a bit more.
>One is the doubleseater "TIGERHAI" which is now in the hand of Anders
>Lundin and you will find some pictures of it on the PSUBS picture
>Gallery. This sub use steel skeleton and fiberglass. Working deep was
>114 feet. One was sold to the USA.
The article I have here has a photo of a two-place sub, but there's
no name to it. It's wide, it has amidships two thick planes and the
canopy is part of a cylinder (the single-seat sub has a hemisphere).
I suppose that one would be impossible to find, today.
I'll have a look at the PSUBS site.
>The other is the "HAGENBURG" a very nice single seater with a dive deep
>of about 164 feet. Some of this vessels was also sold to the USA.
>I think this vessel was a reinforced fiberglass boat and maybe some
>remains are still on the Keys...
The single-seat boat was called "S-24" in the article, but it was
reinforced with steel. I think we can assume that we've found
the German origin of the boat.
Does "Hagenburg" have some maritime significance? Is that the
name of the builder or of the city in which the boat was built?
>If fiberglass get real wet it will lost 30 % of the strength ..(maybe
>forever?)
And that detail could be very annoying, in a submarine.
>I have had two motorboats made from Fiberglass and foam. During my
>work to add a echosounder for a sonar I found out that both ships was
>wet in the foam. If you want to use fibreglass in a submarine do it
>without wood or foam.. Reinforced fibreglass seems better..
It would be interesting to talk with whomever purchased the little
German plastic boats . . . .
>But if you build your submarine from fibreglass - to test them unmanned
>in a test tank or deep water 3-4 times of the working deep seems the
>only way to find out that you have not a mistake in your design.
Always a good idea to test the real thing!
I doubt that I'll ever think seriously about a fiberglass submarine, but
I'm not sure that it's a bad idea if one is building a boat designed to
dip just below the surface for a short while. No more than 15 feet
down, for example. (The average American Yuppie would love
something like this.)
Michael B. Holt Oregon Hill, Richmond,
Virginia, U.S.A.
"There's gotta be an excuse for some of this."
--
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