Re: Fw: Re: [PSUBS-MAILIST] Scuttle valve

["Carsten Standfuss" <MerlinSub@t-online.de>]

In submarines to pressurzie the hull - so that inside and outside
pressure is equal and you can open the hatch to leave the dammage sub
:-o and ;-) 

Normal civilian ships have no "scuttle vales" ! - in war time and in
face of a raider they just open the head of an seachest. Or a manhole of
a main ballstwatertank or something like that - main cooling water pipe
flange. 

On some german subs of WWII the have a vale with a closed blind-flange -
can be rebolted - and than just open the vale.  

On a psubs size of the cabin-flood-valve is important to flood the boat
in a short time of some minutes so the pilot ca scuba out before he
freeze to dead or get to decompression-ill during the way to the
surface. 

regards Carsten

Steven Mills schrieb:
> 
> Me again,
> 
> I have to correct myself here.  I think most all ships and boats,
> regardless
> of era, had scuttle valves, even civilian. I would wonder if there be
> "any" reason
> to have one on a personal submersible? I know, seems like a ridiculous
> question to ask, but would there be?
> 
> --Steve
> 
> On Mon, 8 Mar 2004 13:40:57 -0800 Steven Mills <cirtemoeg@juno.com>
> writes:
> > I believe, historically, most military ships and submarines of the
> > WWII
> > era had scuttle valves.  I recall that film U571 [ I believe that's
> > it ]
> > had the
> > Enigma machine onboard and the Allies were after it.  Fearing
> > capture
> > of both sub and Enigma codes the crew made an attempt to scuttle or
> > sink it before it could fall into Ally hands.  They did not succeed.
> >
> > Have you seen the film?  Are you interested in WWI and WWII era
> > submarines
> > and submarine development?
> >
> > regards, --Steve
> >
> >
> 
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