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Date: Thu, 04 Dec 1997 07:46:15 -0500
From: "G. Irvine" <gmirvine@sa*.ne*>
Organization: Woodville Karst Plain Project
To: "usnseal@ne*.co*" <usnseal@ix*.ix*.ne*.co*>
CC: techdiver <techdiver@aquanaut.com>, cavers@ge*.co*
Subject: computers was Re: dive comuters
Wendy - the computers are padded and give an inaccurate blooming of the
shallow stops. In addition, the Bulhman model only partially accounts
for deco - you need to combine a bubble mechanics model with the decay
curve shape to arive at anythig usefull . You will find no computer that
does this, unless Will has his out or you can buy one of Rod's. 

 What we do is work with the shapes and possilbilities and familiarize
ourselves with the various nuances to arrive at the right schedule on
the fly. We use bottom timers, and for long dives, we may add in a watch
just to keep from blowing 100 minutes here or there ( most of the timers
do not have a third digit driver, although the newer ones might).

 Unfortuneatley, even the best intending players like Lamar are
constrained by the "liability" issues, and , as I said, ther is no
combined model on the market. 

 Use a timer, and rembember where your real redundency is - your buddy,
and the rest of your instruments, like your pressure guage. Learn to use
them as checks. 

 You may not wnat to hear this, but then you might want to save the
money for something usefull.


usnseal@ne*.co* wrote:
> 
> I used to used an Aladdin Pro computer which recently died. I was very
> happy with it and would like to replace it with something similar. Any
> suggestions? I do not need anything fancy for mixed gases or extreme
> depths, just a good deco. schedule, and something small and durable.
> Thank you,
> 
> Wendy Short
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