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That's why I was wondering whether He would be of any use in reducing
nitogen loading and keeping o2 levels normoxic- or am I trying to make
something simple complicated? Trey, Jim, anyone?
Dive safe
Brock
----- Original Message -----
From: Don Burke
To: techdiver@aquanaut.com
Sent: Saturday, June 03, 2000 6:19 PM
Subject: Re: Exposure 3h+
I'm not very well versed in the use of helium at shallow depths.
What are the advantages over, say, EAN 39?
Sidney Brock Frederickson wrote:
Peter:
This summer and Fall I'm planning some dives along the same lines with
the Oklahoma Historical Society and then as part of my cave training with
OCDA
I can tell you right off though that at those temps and durations you can
plan on some decompression time. Maybe not the massive times you've heard
of
, but enough to warrant a smallish stage (30-40 cf) bottle of O2. I trust
you are diving dry, staying well hydrated, and using a p-valve.
Even tho the depth seems shallow, the temp and duration make me think
that maybe helium would be a good idea here. Anyone care to comment?
In the meantime If you want send me some of your planned profiles and
I'll run them through Decoplanner and GAP.
Dive Safe
Brock Fredeickson
www.uwservicesllc.com
----- Original Message -----
From: Peter Steinhoff
To: Techdiver
Sent: Wednesday, May 31, 2000 1:53 PM
Subject: Exposure 3h+
What type of problems are you going to run into when you extend the
running
time from 2 hours to 3-5 hours or so?
I'm planning a "long" but very shallow (40-50ft) dive, 45-55F.
--
Peter Steinhoff
DIR diver (trying...)
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<DIV><FONT size=3D2> </FONT><FONT size=3D3>That's
why =
I was=20
wondering whether He would be of any use in reducing nitogen loading and =
keeping=20
o2 levels normoxic- or am I trying to make something simple complicated? =
Trey,=20
Jim, anyone?</FONT></DIV>
<DIV> </DIV>
<DIV> Dive safe</DIV>
<DIV> Brock</DIV>
<DIV> </DIV>
<DIV> <SPAN id=3D__#Ath#SignaturePos__></SPAN> </DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: =
0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A href=3D"mailto:donburke56@ya*.co*" =
title=3Ddonburke56@ya*.co*>Don Burke</A>=20
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
href=3D"mailto:techdiver@aquanaut.com"=20
title=3Dtechdiver@aquanaut.com>techdiver@aquanaut.com</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Saturday, June 03, 2000
=
6:19=20
PM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: Exposure
3h+</DIV>
<DIV><BR></DIV>
<P><BR>I'm not very well versed in the use of helium at shallow =
depths.</P>
<P>What are the advantages over, say, EAN 39?</P>
<P><BR><B><I>Sidney Brock Frederickson=20
<BFREDE1615@EM*.MS*.CO*></I></B>wrote: <BR>Peter:<BR>This
summer and =
Fall=20
I'm planning some dives along the same lines with<BR>the Oklahoma =
Historical=20
Society and then as part of my cave training with<BR>OCDA<BR>I can =
tell you=20
right off though that at those temps and durations you can<BR>plan on =
some=20
decompression time. Maybe not the massive times you've heard of<BR>, =
but=20
enough to warrant a smallish stage (30-40 cf) bottle of O2. I =
trust<BR>you are=20
diving dry, staying well hydrated, and using a p-valve.<BR>Even tho =
the depth=20
seems shallow, the temp and duration make me think<BR>that maybe =
helium would=20
be a good idea here. Anyone care to comment?<BR>In the meantime If you =
want=20
send me some of your planned profiles and<BR>I'll run them through =
Decoplanner=20
and GAP.<BR>Dive Safe<BR>Brock=20
Fredeickson<BR>www.uwservicesllc.com<BR><BR><BR>----- Original
Message =
-----<BR>From: Peter Steinhoff <PST@IN*.CO*><BR>To: Techdiver=20
<TECHDIVER@AQUANAUT.COM><BR>Sent: Wednesday, May 31, 2000 1:53 =
PM<BR>Subject:=20
Exposure 3h+<BR><BR>What type of problems are you going to run into =
when you=20
extend the running<BR>time from 2 hours to 3-5 hours or
so?<BR><BR>I'm =
planning a "long" but very shallow (40-50ft) dive, =
45-55F.<BR><BR>--<BR>Peter=20
Steinhoff<BR>DIR diver
(trying...)<BR></P></BLOCKQUOTE></BODY></HTML>
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