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Don, I hate to rain on your parade, but, you are way out in left field on this one. Mixes like 25/35 are safer than air, to the MOD. Period. Its easier to decompress from, easier on the bod, and the safety of the dive is improved. Try some. Scott ----- Original Message ----- From: Don Burke <donburke56@ne*.ne*> To: Shimell, David (shimell) <shimell@se*.co*>; <cobber@ci*.co*>; dmdalton <dmdalton@qu*.ne*> Cc: <dwiden@ho*.co*>; 'Paul Braunbehrens' <Bakalite@ba*.co*>; <techdiver@aquanaut.com> Sent: Tuesday, October 10, 2000 8:47 AM Subject: Re: rec trimix > I have made a reversal on this issue. > > Jim's comments and Stuart's reference to "people who need a specialty course > to change a fin strap" pretty much brought me back to reality. > > While I believe the rec use of Nitrox is an overall good thing, rec trimix > would cause more problems than it would fix. > > My reasoning is pretty simple: > > Helium is only an asset deeper than about 80 feet or for diving (deep or > shallow) with signifigant deco obligations. > Neither is a place to encourage lightly trained divers to loiter. > > Getting no stop bottom times better than air with trimix involves jacking up > the oxygen levels at precisely the depths it is most dangerous to do so. It > is deep enough to make a swimming ascent a challenge and shallow enough to > make a ten foot depth excursion result in a signifigant change in PPO2. > Again, no place for lightly trained divers. > > The mixes discussed here _have_potential_ for use by _properly_trained_ > divers: > > a. Weather becomes less of an issue if you know you can go from bottom > to ladder in about three minutes. > > b. Hypothermia isn't such a problem if you can be moving the entire > time in the water. > > > If the path to trimix training needs to be unscrewed, do _that_, don't > bypass it. > > We've lost enough people in "wrong gas" incidents. > > Don Burke > Chesapeake, Virginia > > > _____NetZero Free Internet Access and Email______ > http://www.netzero.net/download/index.html > -- > 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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