Mailing List Archive Mailing List Archive
Paul Braunbehrens wrote: > Al Marvelli wrote: > ~ > >um, no. The no decompression limit concept means that from any point > >within the > >the ndl you can go directly to the surface without a stop. As long > >as you exhale > >you should stand a resonable chance of not getting bent and not embolizing. It > >would be nice to maintain 30 fpm, but thats not required. > > Great! So it would be better to use a system where if you have a > failure you have a "reasonable" chance of living. Why not use a > system where you have no problem whatsoever? > ok now what happens when you have overbreathed your primary and your pony because you are in a panic, because you are terrified of going up because you will get bent? Even worse, what do you do if you cant get rid of your weights?? Dude, you have confused the "controlled emergency swimming ascent " with the "emergency buoyant ascent". It would be nice to do the csea always, but you may not be able to, and will need to be able to do the eba. This is all in the context of no deco type diving.For actual deco diving you need to be able to access all your gas, or at least be able to save half of it. Either you are shallow enuff that you can do the eba w/o fear or you are deep enuff that you need doubles and the cesa with the pony is a cluster. Just because you have had a bad buddy or a string of bad buddies, does not mean that you will never have a good one. keep looking. I know half a dozen guys who make great buddies, the problem is they think like you do and thus wont buddy w/ anyone, while if they would buddy together they would have a blast. Conversely if you are really good at being a buddy you can buddy with anyone, although this sometimes becomes more like babysitting than buddy diving if the other guy/gal is a putz. The guy stayed down because he was under pressure, you neoprene guys always forget you are under pressure and that neoprene compresses< not you personally Paul>and loses buoyancy at depth. The guy overbreathed both regs in a panic and was too scared of blowing up to swim to another diver he could see to share air. Instead he decided to drown. said it was very peaceful, walk into the light yadda yadda yadda. he doesnt dive with us anymore and i wish him many happy years of golf. Remeber that the accident stats tell us accidents occur most of the time on the surface, and the vics sink and drown, this is another point against non ditchable weight. The pony should be used for the cesa only, doubles are different, you switch regs and then isolate the problem reg, thus hopefully regaining the use of most of your gas. how do you figure your gas management for deco when you lose your primary tank and go to the pony? Do you really have enuff gas to do the stop you think you do? wouldnt it be better to use a system that allows at least the possibility of using all your gas?for deco or near deco? for true ndl diving< like 60 fsw say> why the added bulk of the pony for minimal gain? also 1.6 at the bottom makes it like backgas alomst for deco. then theres the tox isue and we dont want to drag that idiot black into this do we?? Narcosis doesnt happen if we plan to aviod it, and life need not take us by surprise if we think it through. Im sorry i dont have more patience to type it all out but i see a lot of other problems with what your saying, but i dont want drag this down into point by point and a dozen emails about it. If you want, lets just discuss the issue of droppable weight in private email, so we dont bring everybody down even more. rgds, Al Marvelli PS the dutch germans who settld in PA brought the pretzel here, but they do more biz here than the germans do now in their own land. > >< buddy, redundant > >system,etc> > > Redundant system I have. Buddy...you mean the guy who in 10 foot > swell pulls out a huge bowie knife because he thinks he's tangled in > kelp, just as I'm swimming over to help him? That guy? I ditched > him when I realized that I'm safer by myself. I dive in Monterey, > Carmel. Visibility is often 10 ft. here. Unless you're holding > hands the whole time, a buddy is totally worthless. > > > > >Having participated in a rescue where tyhe victim lost his weigths > >at the bottom, > >and stayed there after he panicked and spit out his reg despite wearing a foam > >drysuit< he told us so after we revived him>, i can tell you that when faced > >with the choice of drowning because i cant ditch any of my weight > >and my pony is > >empty vs toss all my shit and live like a pretzel, im going to Littiz, > > How did he manage to stay down after losing his belt? The whole > thing sounds stupid. The pony was empty? This whole thing makes no > sense, the only time you spit out your primary and switch to the pony > is when there is a failure, or you're at 15 ft and doing a 3 minute > stop. If there is a failure, and you are using the pony, then you > are on your way up! Isn't this the same basic principe as doubles? > I don't know, it sounds like someone who shouldn't be diving in the > first place, who doesn't understand how to use a pony, and who values > his weight belt more than his life. > > >Pennsylvannia every time.< Littiz PA , btw is the home of the pretzel.> > > I always thought the pretzel was a german invention. > > > > >Besides this is all academic if you remember to pay attention to > >your gear < ie > >weight belt> during the dive, just like you need to monitor the spg, > >the timer, > >not get entangled, not get lost, clear you mask etc etc etc. > > My current thinking is that the risk of losing the belt is higher > than the risk of not being able to go up. I can't imagine not being > able to go up. I have redundant gas supply, and I have redundant > buoyancy. If I'm wrong, please tell me, but I can't come up with a > scenario that would cause this. Well, ok, I can. My corrugated > inflator rips off and there is a huge tear in my drysuit. Even then > I could probably still make the drysuit hold enough air to float me, > and even if the primary tank fails I could stick the pony reg. into > my drysuit sleeve and purge it. If all else fails, I could unclip > the pony, get out of my harness, and swim up. Now that would be a > good skill to practice in the pool! > > Of course paying attention to your gear is important, but things will > go wrong. You will get narced. You will get lost. Something will > fail. That's just life. > -- > Paul Braunbehrens mailto:Bakalite@ba*.co* > http://www.daw-mac.com Mailing list for digital audio on the mac -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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]