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Don't laugh Jim. You're used to diving on a flat bottom in a shallow ocean. Up here we have deep narrow fjords, some of which are over 2,000 ft deep. Combine that with 18-25 ft tides and you can swirling currents that go in every direction including down. At peak exchange, the currents in some of the the channels can be so strong that even the navigation markers pull underwater. There's one fjord south of Juneau called Ford's Terror where the tidal currents cause 4' standing waves and there's often small icebergs mixed in. Puget Sound is less extreme but has similar conditions in certain places. But then there's no good reason to be blue water diving in this stuff. The answer is to stick on the walls and stay out of the deep mid-channel areas where you can't see anything but black water anyway. And that still doesn't change things. Much better to temporarily increase your buoyancy through your wings and drysuit rather than permanently increasing it through ditching weight which will make it impossible to stop when you get shallow. -Kent- > -----Original Message----- > From: Jim Cobb [mailto:cobber@ci*.co*] > Sent: Thursday, August 24, 2000 5:48 PM > To: Paul Braunbehrens; CaptnDale@ao*.co*; shimell@se*.co*; > einar.hagen@un*.co*; thomas@ha*.ne* > Cc: techdiver@aquanaut.com > Subject: Re: Ditching the $800 light > > > "Downward vortex"? Oh, come on Paul!, this is Techdiver, not recdiver! > > On Techdiver you have a deco obligation, shooting to the surface is simply > not an option! You don't even plan for it you idiots! Downward vortex??? > Goddamn, now I've heard everything... > > Hey, here's a new TDI techicule divving rule for you techicule divvers out > dere... "When technicule divving, please endivvor to a-void divving in > areas where there are upward, downward, time or space vorticules". > > Jumping Jesus, "downward vortex", what next, giant squid??? > > Jim > ------------------------------------------------------------------- > Learn About Trimix at http://www.cisatlantic.com/trimix/ > > > From: Paul Braunbehrens <Bakalite@ba*.co*> > > Date: Thu, 24 Aug 2000 18:25:46 -0700 > > To: Jim Cobb <cobber@ci*.co*>, <CaptnDale@ao*.co*>, > > <shimell@se*.co*>, <einar.hagen@un*.co*>, > <thomas@ha*.ne*> > > Cc: <techdiver@aquanaut.com> > > Subject: Re: Ditching the $800 light > > > > Jim Cobb wrote: > >> > >> And you know, I don't regret a thing. I can't believe that there is > >> discussion about $800 or $8000 when it comes down to a life or death > >> situation. > > > > > > Jim, I think you misunderstand my original comment. No one is going > > to worry about $800 or even 100000000 when it comes to their life. > > That's not the problem. Let me give you a hypothetical situation. > > Let's say you are diving, and you are caught in a downward vortex. > > You're going down, but you think you'll probably be able to swim up. > > You try for a while, and then realize you can't. Now you think "it's > > life or death, I better drop my light". Maybe you make it, maybe you > > don't. If it was a weight belt, at the first sign of trouble you'd > > be saying "who cares about a weightbelt, I'm not even going to think > > twice about dropping it", and you'd drop it immediately. > > > > Maybe I didn't make myself clear. What I'm saying is that you're > > more likely to drop something that doesn't cost an arm and a leg, > > then something that does. There are plenty of possible scenarios > > that could be life or death, but just start out as a small problem. > > This is what I'm talking about. > > > > Whether or not you actually need ditcheable weight is another > > discussion. With my Pro 6 it's probably not enough to be worth > > dithing anyway. > > > > Cheers. > > -- > > 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'. > -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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