Mailing List Archive Mailing List Archive
On Tue, 23 May 1995, Robert Favorite wrote: > On Tue, 23 May 1995 DeepTek@ao*.co* wrote: > > > Lets bite the bullet and establish 1.4 ATA as the maximum safe ppO2 at depth > > for ALL divers. With increasing availability of He and other substitute inert SNIP > >Although I am a "newbie" it doesn't seem that difficult to pick your > mix. Why not plan your descent, travel, ascent, and stop mixes to keep > the ppO2 at a safe level? IMHO The best part about increased technology and > knowledge is that it allows us to dive more safely even at the extremes! > That's my Aye, I'll have to register a NAY. Lets say I am diving a cave that has 90 percent of the passage at 110 and 10 percent at 160. I am not going to use mix for that dive! For me it's just not that dangerous . I seem to recall that the limit used to be 1.8, then went to 1.6 now I hear a call for 1.4. Hmmmmmm? I think the current limit of 130 feet that PADI (and all the rest) recognizes is fine for new and recreational divers. Divers with more experience and training should set their own limits, they, after all, are the ones who will pay for their mistakes. I haven't gone back and actually reviewed any logs of incidents but I don't seem to recall ONE incident where "deep air" (above 225 ft) was a problem UNLESS the diver was breaking another guideline along with it. Is this depth limitation like the CNS clock? What I mean is, what happens when your CNS clock hits 100? Exactly what does that mean? What degree of fit does the CNS clock have to incidents of O2 hits? The problem with both the CNS clock and the 130 foot limit on air is that both can be violated my most people with no apparent problem. So the diver starts to feel that the limit is NOT realistic. I'd "recommend" a max depth on air, but it sure wouldn't be 130. Didn't that number arise from the USN and their perception that any work past that limit would be more effeciently performed by Surface Supported divers? How does that relate to cave diving? I'm just full of questions aren't I? Do I recommend deep air ? NO! But on the other hand I don't even recommend diving :) It's your life, feel free to run it the way you want! That's what I love about our country! Remember, Suicide is not a punishible offense, only attempted suicide is illegal. r.b. packing for cave country
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]