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"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'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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