Just get the basic shape from a deco program and then fix it to add in the
proper ascent, the proper deep stops, and use the logic I told you in the
other posts.

-----Original Message-----
From: gnat [mailto:gnat@ao*.ne*]
Sent: Wednesday, February 27, 2002 1:48 PM
To: trey@ne*.co*; Techdiver@Aquanaut.Com
Subject: Re: no reply, pls


From: "George Irvine" <girvine@be*.ne*>

> Need another common profile and we can go over what works and why it
works.

George,
    Seeing the profiles is (to me) interesting, yet ultimately useless since
I think i'm missing some of the underlying logic (possibly I missed a
previous post or didn't understand what I read). Rather than giving you some
numbers and seeing what you send back, i'd like to understand more of your
logic so I can generate my own profile and then get your input on what I
have done wrong. If you can please back track for a few moments on a few
points i'd appreciate it.

    The first question I have is how you determine how long to hang at each
stop. In a previous post you mention max times for each of the depth ranges,
but
assuming i'm at my max depth for enough time to be well beyond the minimum
deco rules and less than the saturation point how would I determine how long
to hang at the stops?
    The next is how to determine how long you need to hang with a gas
switch? In some of the profiles you have posted the stops appear to be the
normal stop time up to that point, plus the time it takes for blood to
circulate after the switch (2-3 minutes), but in others it appears to be
much longer. Connected with this would also be how to determine the length
of the 20' stop.

Thanks,
-dave

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