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> >On Thu, 21 Jul 1994, Terry McCracken wrote: > >> Is it a possibility to leave this all on the surface? Say four divers >> go out, two stay on the surface along with all the tanks and a gas managment >> console and the two divers use a full-face (AGA, Kirby-morgan) mask with >> communication gear go down on surface supply. This means that the gas >> decisions are made by a person on the surface that is not task loaded and not >> narced.It also means the guys on the surface always know what is happening. >> Then they swap. >> I know this is not cheap but how does it compare to the current costs >> and the suggested costs of rebreathers.(plus the cost of mistakes)We are only >> adding the surface supply hose and the console and comms. The tech diving >> comunity is adopting commercial gas mixes, why do we not also adopt their >> safety practises. > >Your not alone in suggesting that tech divers move towards >surface-supplied breathing gas. I would suggest that it's not feasible >for many applications (caves, wreck penetrations, etc.). I've given it >serious consideration, and I feel that the costs (not only $$, but >efficiency of operation allowable only through total autonamy, as well as >additional risks) outweigh the benefits for me & what I do. However, I >think you're right - it probably does have broader applications in tech. >diving operations than it's presently used for. I suspect it's just >unfamiliar technology to many. I gotta throw something into the pot here. Sorry, but I just GOTTA do it. First off, Ronnie B. said it well - A man chooses how to live, and how to die. So, then, when each of us picks and dives a profile that is deep, in a cave, or any of those type things, we know that we might not come back. And that it is worth it to go see what is there. Now, with that said, how many surface-supply teams have ever handled a diver without screwing the pooch once at least once? Those tenders aren't the guys that have to take the chamber ride. Now, I know that most of them would feel real bad about it, but, well, enough said. So, then, when my number comes up, I'd just as soon it was by my own hand. ------------------------------------------------------- scot@bt*.co* Scot Anderson pp000082@in*.co* Voice: 703/761/6536 CIS:74147.2357 Fax: 703/556/9290
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