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Re: [PSUBS-MAILIST] Fiberglass submersibles inquiry
I agree, there is a lot more to it than the pressure-vessel. I see
decompression chambers as medical equipment and there is a lot more
to medical equipment than commercial (or home made) equipment.
Thanks,
Ian.
On Fri, 13 May 2005 14:43:10 -0700 (PDT)
Dave Banks <noperiscope@yahoo.com> wrote:
> I was not referring to the pressure vessel it self......thats the simple part.....I'm talking about the gas mixing...the deco rates....and all the complications in that regard.....its a big part of why we build submersibles in the first place and that is to simplify going deep? Is it not.
>
> irox <irox@ix.netcom.com> wrote:
> From a structural point of view a decompression chamber is much simpler than a submarine.
> The factor for dealing with internal pressure pressure-vessels are lot more forgiving than
> the factors when dealing with external pressure pressure-vessels.
>
> Ian.
>
> -----Original Message-----
> From: Dave Banks
> Sent: May 13, 2005 10:18 AM
> To: personal_submersibles@psubs.org
> Subject: Re: [PSUBS-MAILIST] Fiberglass submersibles inquiry
>
> Careful Emily
>
> Your talking about a decompression chamber and its a very complicated thing. Not to be even thought of by any one but professionals. Submarines are much simpler.....djb
>
> Emile van Essen <2stroke@hetnet.nl> wrote:
> BODY { FONT-SIZE: 12px; MARGIN: 0px; FONT-FAMILY: Verdana}TABLE { FONT-SIZE: 12px; MARGIN: 0px; FONT-FAMILY: Verdana}TR { FONT-SIZE: 12px; MARGIN: 0px; FONT-FAMILY: Verdana}TD { FONT-SIZE: 12px; MARGIN: 0px; FONT-FAMILY: Verdana}P { FONT-SIZE: 12px; MARGIN: 0px; FONT-FAMILY: Verdana}.bgtabl { BACKGROUND-REPEAT: no-repeat}
>
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>
> I have personnaly dived in a 40 sits tourism sub-marine in monaco , the sub hull was totaly made in a transparent resin (very thick), so i see no reason why a sub could not be made in a plastic material.
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> ---it is probably cast acrylic. As far as I know exists no clear resin.
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> On the other hand i could note that this kind of building requires bigger means than the traditional stell hulls, it cant' be done in a small garage, requires big moults , amtmosphere control (humidity and temperature).
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> Steel or GRP; I think the same workshop space is required. but you dont wake up the neighburs with the angle grinder.
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> Personnaly i am really interrested in the result cause i would like to built an un motorized sub five meter long designed to welcome divers for 4 days with the possibility to reduce the pressure up to surface pressure at the end of stay.
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> --Do you have a drawing?(post to moki) what hull diameter. It schould have some comfort for a long deco stay.
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> or maybe am I a stupid newbie dreamer that has nothing to do here ??????
>
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> --No
>
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> regards, Emile
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