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On 2 Aug 1994, HeimannJ wrote:
> David Story writes:
>
> this. The real issue is that they don't account for the fact that existing
> He bubbles from the previous dive may make the Haldanean model too
> inaccurate. Then again, I don't believe that custom table programs take this
> into account either, except insofar as they may use different J factors than
MiGPlan does take absorbed He and N2 from previous dives and calculates
inert gas loading and decompression obligation for multi-leve/repetitive
dives. The Macintosh version graphically displays the different gases in
each compartment (He = gray, N2 = black) and the IBM version displays the
total amount of inert gas in each compartment.
The 'J' factor ('bias factor' in MiGPlan parlance) is set seperately, and
is not related to the type of gas mixture used.
MiGPlan does not account for Helium bubbles (!) that the poster was
talking about. (I'm sure he meant absorbed/dissolved/saturated Helium.)
E-mail me for the MiGPlan factsheet.
Dan Nafe
MiG Technologies
dan@sh*.ne*
mig@sh*.ne*
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