Rod, I do not se why you say the tandem is unsafe - this is how they teach 
people to parachute jump, so if you can fly with it, you can dive with it. We 
dive tandem all of the time. - G

On Wed, 1 Jan 1997, Roderick Farb <rfarb@em*.un*.ed*> wrote:
>Carlos, my point is this. I consider independents as the ONLY safe way to
>dive. Think about it like this. Just consider independents as one main
>tank and one pony bottle.  Mount the main tank on your back in the
>standard manner as a single tank and mount the second tank to the first in
>a plane perpendicular to the plane of your back so that the result looks
>like a large dorsal fin. You get increased cornering ability. Put a back
>pack on the outboard tank and you can tandem with another diver on the
>outboard tank. This is not the safest thing to do because you can't
>directly reach each other in an emergency and tandem divers are reluctant
>to detach themselves from their tank since it violates the most basic rule
>of tech diving- never leave your tank on someone else's back. 
>
>
>
> On Tue, 31 Dec 1996, Carlos Arruda Accioly wrote: 
>
>> 
>> Rod,
>> 
>> Of course it is possible to do all switches correctly, or we'd have to do 
>> a body recovery every time someone got in the water wearing independents. 
>> But it still increases task loading, and if the diver forgets to do the
>> switch, which is quite possible, he could be in a dangerous situation.
>> 
>> As for the boat thing, I don't care. At the time of writing they were
>> friends. Maybe they still are, maybe they aren't, who cares? We're here to
>> discuss diving, not gossip.
>> 
>> Cheers,
>> 
>> Carlos
>> 
>> 
>> 
>> >Sounds like he is saying that what divers do with the independents in that
>> >situation is unsafe, not that the prcatice of independents per se is
>> >unsafe. As for the boat thing ask Steve. 
>> >
>> >On Mon, 30 Dec 1996, Carlos Arruda Accioly wrote:
>> >
>> >> 
>> >> >Where do you read in that passage you quoted that the writer feels it is
>> >> >unsafe to dive independents but he does it anyway? The book is about how
>> >> >to do it, isn't it. Since when will Belinda let him on board the boat?
>> >> 
>> >> Where does it say it is unsafe? Here:
>> >> 
>> >> >However, the disadvantage is that the diver must
>> >> >anticipate switching regulators during the dive. Ideally, he should keep
>> >> >a constant check on his gauges and make the switchover before completely
>> >> >draining one tank, not just so water does not get sucked into the empty
>> >> >bottle, but so it can still be used as a backup. Invariably, the diver
>> >> >fails to make the changeover until breathing becomes difficult, putting
>> >> >him in the precarious position of *having* to switch regulators, 
regardless
>> >> >of circumstances, on every dive, usually when he least expects it.
>> >> 
>> >> I didn't say that he still dives independents. Maybe he does, maybe he 
doesn't;
>> >> it doesn't matter. The point is that he *has* experience with this kind of
>> >> setup.
>> >> 
>> >> As for your last remark, about Steve Bielenda not letting him on board the
>> >> boat, what do you mean? Really, I don't get it.
>> >> 
>> >> Cheers,
>> >> 
>> >> Carlos
>> >> 
>> >
>> >
>> >
>> 
>
>
>--
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>


George M. Irvine III
DIR WKPP
Woodville Karst Plain Project
1400 SE 11 ST Ft Lauderdale, FL 33316
954-493-6655 FAX 6698
Email gmiiii@in*.co*

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