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Date: Fri, 10 May 1996 17:13:48 -0600 (MDT)
To: techdiver@terra.net
From: "Christopher M. Parrett" <chris@ab*.co*>
Subject: RE: TWO trimix dives a day ?
At 09:21 AM 5/10/96 -1000, you wrote:
>
>Chris,
>
>Do users have access to M-values in Abyss?  It seems to me that the best 
>way to get the deep stops would be to reduce the supersaturation 
>threshold of the faster tissues.  This shouldn't significantly affect the 
>total deco time of the dive, but would require deeper initial stops.  
>Also, have you considered increasing stop depth incrememnt for the deeper 
>stops?
>
>Aloha,
>Rich
>--


Abyss does not use "M" values, but rather the A/B pair of the Buhlmann algo.
In the next version of Abyss we will be offering alternate sets of the 3
standard A/B Pair arrays that will allow the user to decide if they want the
deep stops to be added, and if so, in what manner.

By choosing one of the alternative arrays, they will trigger 3-5 additional
stops below the current deco schedule that would be 1-3 minutes each in time.

The Other method would be your ascent in 1/3rds.
Where bottom is at 300ft, and standard deco begins at 100ft, the user would
get an artificial stop at 233 and again at 166, both for a minute or two.


Bruce Weinke just sent us some updated RGBM code today, so there may be some
better bubble modeling as well in the tissue model, and we will be adding a
full RGBM Algo (non-Tissue) as well.





~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Christopher M. Parrett, President
Abysmal Diving Inc. 6595 Odell Place, Suite G. Boulder CO, 80301 USA

Makers of ABYSS, Advanced Dive Planning Software.

Phone: (303) 530-7248 
Fax:   (303) 530-2808

File Transfer Site:  ftp://abysmal.com/users/abysmal 
NEW WWW Site...
World Wide Web Site: http://www.flinet.com/gulfstream/abyss/
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