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I understand, George. In fact, I don't either. I was just pointing out that I can do anything the neutral 80s can do and do it better with a standard 80 and a little lead. As long as I've got you talking about weights on tanks, I have a minor dilemma. A portion of my diving is not technical by any stretch of the imagination and involves quite a bit of time bobbing on the surface waiting for something (another diver, a tool, a camera, whatever). With the wing, there is a tendency to pitch forward. My old jacket BC is much better on the surface, but I'd rather not deal with it underwater. Besides, it is getting old and I'd rather not replace it when it dies. I've been thinking of using one of those exercise weights on the tank, but would rather not introduce another entanglement point. This is only a problem with a wetsuit. With the drysuit I just poof up the suit, flatten the wing and maybe take a nap. Any ideas? Thanks, Don >From: "George Irvine" <girvine@be*.ne*> >Reply-To: <trey@ne*.co*> >To: "Don Burke" <donburke56@ne*.ne*>, <techdiver@aquanaut.com> >Subject: RE: neutral AL 80's >Date: Sun, 6 Jan 2002 07:25:37 -0500 > >Don, we don't put weights on tanks, we wear weightbelts. > >-----Original Message----- >From: Don Burke [mailto:donburke56@ne*.ne*] >Sent: Saturday, January 05, 2002 9:03 AM >To: techdiver@aquanaut.com >Subject: Re: neutral AL 80's > > >Susan, > >I have a set of regular 80 doubles and a regular 80 I use for a stage. > >On the stage, the bouyancy is about perfect. By the time I breathe it down >to the point where the tank is positive enough overcome the weight of the >regulator, the tank is pretty much empty anyway. I think additional weight >would be a liability, but if for some reason I wanted it, strapping a >weight >on the tank would be my choice rather than a different tank. Lead is a >more >efficient ballasting material than aluminum. > >I only use the double 80s with a wetsuit, so the weightbelt must have >enough >weight on it so that I can get back to the surface in the event of a >catastrophe like both first stages failing shut. Since I'm weighted to >account for all of the fixed weights I carry, the belt must carry enough to >compensate for the variables, namely the gas in the tanks and wetsuit >compression. Making the tanks more negative means less weight on the belt >and less wetsuit compression I can compensate for, so I can't safely go as >deep. With the regular 80s, I can go deeper than my candyass is willing to >deal with the temperature anyway, so perhaps there could be some uses >there, >although there would be more weight on the boat, which with my knees and >back, is a showstopper. If I wanted to take some weight off the belt (like >for a long, shallow dive), I'd just use a little v-weight with the regular >80s. > >The only use I would have for a neutral 80 would be as a single tank on >very >shallow dives or as a hang tank and I'd use steel for those applications >anyway. > >With the drysuit, I tried aluminum a couple of times. Steel is all I use >anymore. > >Don > >----- Original Message ----- >From: <LouisianaLegal@ao*.co*> >To: <techdiver@aquanaut.com> >Sent: 03 January, 2002 16:51 >Subject: neutral AL 80's > > > > Does anyone have any experiences or comments on the Luxfer "neutral" 80 >cubic > > foot AL tanks? > > > > I was wondering if these would make good stage bottles and/or double >tank > > sets for the ocean. Does anyone know what the working pressure is on >these > > cylinders? > > > > Any information would be appreciated. Susan _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.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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