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Keith,
We're pretty much on the same page. My original post stated:
"As long as your inflation gas is not lost your bouyancy will remain the
same regardless of how much water is in your suit."
So I feel that was covered. The only other thing I want to discuss is your
statement:
"So if a dry suit were to "completely" flood (as in Mr. Kenney's example)
you would not be able to control bouyancy with your dry suit, all bouyancy
compesation at this time would be from the wings."
Despite what the training agencies and even the DUI manual say, You DO NOT
control bouyancy with a drysuit. The best way to handle this is to put just
enough gas in your drysuit to keep the squeeze down and leave the auto dump
open. As you descend, you add more gas to relieve the squeeze and as you
ascend the auto dump vents the expanding gas. Primary bouyancy control is
from the wings. At deco you can reverse this (i.e., shut the auto dump, add
gas [argon] to the drysuit and dump the wings) to get more gas in the
drysuit and stay a little warmer. The bouyancy changes only come as you move
to the next stop and are easily handled.
C.
----- Original Message -----
From: "Keith Taylor" <greymouser@mi*.co*>
To: "Chris Elmore" <elmorec@at*.ne*>; <techdiver@aquanaut.com>
Sent: Friday, August 17, 2001 1:32 AM
Subject: Re: Dry Suit Flood ?
> "Buoyancy will only change if the gas volume changes." I don't believe I
> said anything to disagree with that, if a suit floods then water is
> replacing some air, the example was a suit "completely" flooded. I guess
> our disagreement is coming with the term "completely flooded", I took it
to
> mean that there was a major rupture, and all or most of the air was gone.
I
> think your definition is "I'm all wet" (double entendre intentional). So
> that means we're either both right or both all wet. ;-)
>
> Keith
>
> ----- Original Message -----
> From: "Chris Elmore" <elmorec@at*.ne*>
> To: <techdiver@aquanaut.com>
> Sent: Thursday, August 16, 2001 7:28 PM
> Subject: Re: Dry Suit Flood ?
>
>
> > Keith,
> > Thanks for the comments, if you were right I'd be the first to
agree
> > with you. Since the topic is a flooding drysuit we are concerned with
two
> > variables; what is intruding and what is leaking out. In this case water
> is
> > intruding and since it is the same density as the medium you are in
(duh),
> > there is no net change in bouyancy as long as the gas doesn't escape. A
> > typical flooding scenario would be a torn wrist seal (then there is the
> guy
> > that zipped just the outer zipper of his TLS-350...) which could easily
> > flood the suit without losing the gas.You could slip a garden hose under
a
> > wrist seal and fill the suit up with no change in bouyancy as long as no
> gas
> > leaked out from the suit. It would be rather difficult to swim around
> > looking like the Sumo-Man but the water intruding would displace an
equal
> > amout of ambient water, ergo, no change. Bouyancy will only change if
the
> > gas volume changes.
> > C.
> >
> > ----- Original Message -----
> > From: "Keith Taylor" <greymouser@mi*.co*>
> > To: "Chris Elmore" <elmorec@at*.ne*>; "Steve"
> > <sfkenney@ea*.ne*>; <techdiver@aquanaut.com>
> > Sent: Thursday, August 16, 2001 1:00 PM
> > Subject: Re: Dry Suit Flood ?
> >
> >
> > > ----- Original Message -----
> > > From: "Chris Elmore" <elmorec@at*.ne*> said:
> > > > Bouyancy is a function of displacement. As long as your
inflation
> > gas
> > > > is not lost your bouyancy will remain the same regardless of how
much
> > > water
> > > > is in your suit. Of course this does nothing to address the
> hypothermia
> > > > problems this will cause but if you're using well maintained heavy
> > > > thinsulate and argon this will be minimized.
> > > > C.
> > > > Chris Elmore
> > >
> > > Half right there Mr. Elmore, bouyancy is a function of displacement
AND
> > > weight. If you substitute water in your dry suit for air, since water
> > > weighs more your bouyancy will become more negative. So if a dry suit
> > were
> > > to "completely" flood (as in Mr. Kenney's example) you would not be
able
> > to
> > > control bouyancy with your dry suit, all bouyancy compesation at this
> time
> >
> > > would be from the wings. Good reason to wear thinsulite on long dives
> as
> > > has been more eloquently expressed previously on this list.
> > >
> > > Keith
> > >
> > >
> > >
> > > --
> > > Send mail for the `techdiver' mailing list to
`techdiver@aquanaut.com'.
> > > Send subscribe/unsubscribe requests to
`techdiver-request@aquanaut.com'.
> >
> >
> > --
> > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
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>
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