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Date: Thu, 02 Oct 1997 10:15:23 -0400
From: "George M. Irvine III" <gmirvine@sa*.ne*>
Organization: Woodville Karst Plain Project
To: Jim Cobb <cobber@ci*.co*>
CC: cavers@ge*.co*, techdiver@aquanaut.com
Subject: Re: Using trimix for "normal" diving was Re: Too Many (DEEP AIR) Deaths
Jim, Mount knows this, but he is being pressured by the strokes who
want to believe differently, and all of these guys are missing the boat
here: divers want to learn and they want to dive with guys like
instructors who are supposed to give them a shot at experience under the
supervision of somebody who is looking out for them, and supposedly
knows what he is doing. People will pay for that service. They do not
need to be bullhitted, nor do they need to put up with the likes of the
Slob and his nonsense about deep air diving. Let people learn and let
them pay to be walked throught the dives.

 I will guarantee you that when somebody goes to an instrucotor and gets
real infomatoino and some good dives, he wil go away with a feeling of
money wello spent. Dying in a dark, cold quarry deep on air is bullshit
strokery, and no prepartation fof anything. The only people who need to
do a dive like that are police divers.


 Cobb wrote:
> 
> George-
> 
> I don't see mixing trimix as being any more difficult than mixing nitrox,
> the concepts are the same.
> 
> So, to put it simply, use additions of helium to keep your END at 130 or
> above and PP02 at 1.4 or above, use air tables with additional deep stops
> (for the type of diving mentioned below).
> 
> Seems simple enough. No wonder the agencies are panicking.
> 
>    Jim
> 
> On 10/2/97 7:35 AM G. Irvine wrote:
> 
> >Jim Cobb wrote:
> >>
> >> George, I have a question for you. Do you hope, or predict that the use
> >> of helium will be the next big thing like the current nitrox craze? Is it
> >> possible to dumb down a trimix course so that intermediate divers
> >> (130'-190' current deep air) would use it as a matter of routine?
> >>
> >> There are a lot of divers around here that do these depths, but not for
> >> long bottom times (too uncomfortable/difficult to do the open water
> >> decompression) and are doing it on air. Trimix is looked upon as too
> >> difficult or "dangerous" to work with as a usual thing.
> >>
> >>    Jim
> >>
> >
> >  Jim, trimix is easier to dive than air. The Navy used to have a whole
> >set of normoxic trimix tables for scuba. Not that the tabls were
> >correct, but the only difference was they all seemed to add one or two
> >deeper quick stops.
> >
> >  The real problem in not using trimix is that there is so much
> >misunderdatnding and bs out there, and the agencies wnat to charge a
> >fortune to get there. Bill Gavin and I taught our guys in minutes, and
> >neither one of us is an instructor.
--
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