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Date: Fri, 08 Sep 2000 20:15:39 -0400
From: George Irvine <kirvine@sa*.ne*>
To: tim humphrey <tim@hu*.ne*>
CC: Trey <trey@ne*.co*>, Tech Diver <techdiver@aquanaut.com>
Subject: Re: re - weightbelt
Tim, I mentioned the use of the belt with the drysuit. While taking off
the tanks in no way is a good idea in a drysuit, and in no way can
compare to having your buddy untangle you, I will say that a belt with a
drysuit for standard weighting must be under the harness. I use a little
one for "extra" weight so I can add more gas to the suit in cold water.

I can also tell you from our experience in caves taking off the tanks to
deco ( keep in mind we are on a ceiling and have help from support
divers ) that the weight required to keep me and JJ down in C-4 is 24
pounds.

On the other hand, when you drop down in a wetsuit , no only does the
suit lift go to zero, but your body is compressed in all of its spaces
to such a degree that your surface buoyancy numbers are no longer even
close - you are much more negative. The steel with wetsuit assholes have
not found that out yet ( other than the dead ones ). 

Your observations about fixed weighting are none the less correct in
principle, but for a non application.
tim humphrey wrote:
> 
> Steady on George, the name's not Black(or is it Bleak) nor Morin(or is it
> Moron)nobody mentioned wetsuits or aluminium tanks: for the record I dive
> twin 12's steel and a dry suit. I grant you the dry suit is not ideal, being
> crushed neoprene, but it is warm and I do not undertake anything below 50
> metres at present. As soon as I change it will be to a membrane. My concern
> was really with the possibility of having an entanglement necessitating a
> kit removal and how you would deal with it without a weight belt. I am
> currently using 6kilos packed in a harness belt, which is a bloody nuisance
> when you have your backplate harness over the top. Having read your post I
> think your point 2 will mean I must retain the belt or redistribute the
> weight in some other way.
> Thanks for the advice, it was most informative. Please don't think we are
> all like the aforementioned shit-heads. Some of us genuinely want to learn
> and are eternally grateful for your input. That said, I can understand why
> you loose your rag! Just think, somewhere there is mother proud to call them
> son!!!
> Good on ya,
> Tim
> ----- Original Message -----
> From: "Trey" <trey@ne*.co*>
> To: <tim@hu*.ne*>
> Cc: "Tech Diver" <techdiver@aquanaut.com>
> Sent: Friday, September 08, 2000 11:32 AM
> Subject: re - weightbelt
> 
> >     Tim, I do not know who the dumb fuck is who told
> > you we use v weights with aluminum tanks and a
> > wetsuit, but this is self defeating as you
> > immediately suspected. Thanks for pointing out this
> > farm animality.
> >
> >     The v weight thing is for drysuit diving where
> > you have a shell suit and a lift from insulation
> > under it that changes little with depth - in this
> > case you balance the rig with permanent weight to
> > offset the unchanging lift of the drysuit subject to
> > any requirements you may have to float the rig by
> > itself on the surface of the water. Our two
> > guidelines for weight are 1) have enough weight so
> > that with 300 psi left in your backtanks you can
> > stay neutral, and 2) be able to lose enough weight
> > that you can get up from depth with full tanks and
> > no bc.
> >
> >     one big problem with weighting is that most of
> > these nickel rockets have shit insulation, so use
> > many layers, and then pound on the weight to offset
> > that. I use c-4 ( good from 35-55 degrees) and add a
> > small weightbelt in salt water ( nothing in fresh )
> > so that I can inflate the suit higher to get warmer,
> > not add more bullshit that does nothing but bind you
> > up.
> >
> >     C-4 must be carefully maintained or it will not
> > work at all, so I can see how most of these morons
> > don't get it right , like they don't get anything
> > else right to start with.
> >
> >
> >
> >

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