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Simon,
Making mine yours words, i've heard one experienced (very experienced) cave
diver, just befora a dive in a open water (20 miles or so far) wreck, about
the dificults in the ocean they do not see in cave dives, current, waves,
other wessels near the dive site, boat shaking, weather changes in long
dives etc etc etc
This make setting up a limit extremelly depending on conditions, sea and
weather basically.

Best wishes

Marcelo Moorea
GPS/Brasil
http://www.naufragio.com.br
-----Mensagem original-----
De: Art.Paltz@R2*.CO* <Art.Paltz@R2*.CO*>
Para: simonm@ho*.co*.za* <simonm@ho*.co*.za*>;
techdiver@aquanaut.com <techdiver@aquanaut.com>
Data: Quarta-feira, 19 de Julho de 2000 16:35
Assunto: RE: Max Depth Limit


>Simon,
>
>I don't think you can put a MAX limit like you suggest.  There are people
>who are competent to do 100 foot dives on air for say 60+ minutes and deco
>on O2.  This would be considered a technical dive and outside of the
>training limits and requirements of recreational diving.  This same person
>without proper training and experience should not attempt a trimix dive of
>any type.  Others have the experience and training to dive trimix to
200-300
>feet but should not attempt 400 foot, I certainly would not attempt a
>400-foot mix dive.
>
>I also think things like conditions play an important role.  Doing an
>extreme dive in cold dark waters in ripping currents is very different than
>doing a technical dive in warm clear calm water. I would consider a dive in
>the North Atlantic very different than a dive in a clear warm lake with no
>current to the same depth.
>
>Art.
>
>
> -----Original Message-----
> From: Simon Murray [SMTP:simonm@ho*.co*.za*]
> Sent: Wednesday, July 19, 2000 4:53 AM
> To: Tech Diver
> Subject: Max Depth Limit
>
> Has anybody given thought to a maximum 'safe' tech diving limit i.e.
>a depth beyond which the margin for error is so small and the risk of
>accident so great that it becomes unacceptable.  For example I understand
>that the recent GUE Britannic dives were at 400 feet (120m), is this around
>the limit ?
>
> Regards,
>
> Simon Murray
> South Africa
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