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You are kidding, right? I explained in detail how I would do that deco.
Please, please , please stop feeding me the IANTD party line on deco and
read the stuff I wrote. It is all there.
-----Original Message-----
From: Ian Puleston [mailto:ian@un*.co*]
Sent: Monday, February 18, 2002 2:37 PM
To: trey@ne*.co*; techdiver@aquanaut.com
Subject: RE: Standard Deco Dive
George,
Karla's example was for deco on 50%. Your changes give 8 at 20' and
nothing at 10'. Is that for 50% also, or are you assuming O2? If it is 50%
why no stop at 10'?
Ian
-----Original Message-----
From: George Irvine [mailto:girvine@be*.ne*]
Sent: Saturday, February 16, 2002 2:43 AM
To: Dogtrner1@ao*.co*; trey@ne*.co*; techdiver@aquanaut.com
Subject: RE: Standard Deco Dive
I would make the following changes: slower decent, then after 20 at the
bottom, ascent at 30 fpm, consciously stopping every ten feet to achieve
this, then stop at 120-80 for 30 seconds each.
At 70, the gas switch, I would do 3 minutes to get the full effect of the
switch. See the post that talks about circulation time.
The 3 minutes each at 60,50,40
5 at30
8 at 20
ascend to 0 in 3 minutes
I notice you make a comment about the line. Get in the habit of
consciously stopping every ten feet to insure the proper ascent rate. Coming
up from depth too fast is what gives you the subclinical symptoms hours
after the dive. You trap gas in poorly perfused areas and these later swell
and react, the bubbles in them grow, the reaction presses on nerves, and you
get things like numbness in some extremities while you are sleeping that
night - not a cns hit, a cns manifestation. Skin bends would be a more
obvious consequence of skipping deep stops.
-----Original Message-----
From: Dogtrner1@ao*.co* [mailto:Dogtrner1@ao*.co*]
Sent: Friday, February 15, 2002 7:22 PM
To: trey@ne*.co*; techdiver@aquanaut.com
Subject: Re: Standard Deco Dive
I'll bite on this one.
My typical dive is to 165ft. 20 minutes bottom time. I use a 35/20
helium mix.
My deco is on 50% starting at 70 ft.
I do a 1 minute stop at 100 (run time is 22 minutes)
1 minute at 70, while switching gas.(run time is 24 minutes)
1@ 60(run time is 25 minutes)
1@ 50(run time is 26 minutes)
2 @40(run time is 28 minutes)
4 @ 30(run time is 32 minutes)
7 @ 20(run time is 39 minutes)
18 @10(run time is 57 minutes)
I observe coming up the line slowly, hand over hand. Probably about 30
ft per minute.
Karla
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<DIV><SPAN class=3D217414022-18022002><FONT face=3DArial
color=3D#0000ff =
size=3D2>You=20
are kidding, right? I explained in detail how I would do that deco. =
Please,=20
please , please stop feeding me the IANTD party line on deco and read =
the stuff=20
I wrote. It is all there.</FONT></SPAN></DIV>
<BLOCKQUOTE dir=3Dltr style=3D"MARGIN-RIGHT: 0px">
<DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT =
face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> Ian Puleston=20
[mailto:ian@un*.co*]<BR><B>Sent:</B> Monday, February =
18, 2002=20
2:37 PM<BR><B>To:</B> trey@ne*.co*;=20
techdiver@aquanaut.com<BR><B>Subject:</B> RE: Standard Deco=20
Dive<BR><BR></FONT></DIV>
<DIV class=3DSection1>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">George,<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Karla’s example was=20
for deco on 50%. Your changes give 8 at 20’ and nothing at =
10’. Is that for=20
50% also, or are you assuming O2? If it is 50% why no stop at=20
10’?<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial">Ian<o:p></o:p></SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3DArial color=3Dnavy
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: =
Arial"><o:p> </o:p></SPAN></FONT></P>
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<P class=3DMsoNormal><FONT face=3DTahoma size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original=20
Message-----<BR><B><SPAN style=3D"FONT-WEIGHT:
bold">From:</SPAN></B> =
George=20
Irvine [mailto:girvine@be*.ne*] <BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Saturday, February 16, =
2002 2:43=20
AM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> =
Dogtrner1@ao*.co*;=20
trey@ne*.co*; techdiver@aquanaut.com<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> RE: Standard Deco=20
Dive</SPAN></FONT></P>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial color=3Dblue
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">I would =
make the=20
following changes: slower decent, then after 20 at the bottom, ascent =
at 30=20
fpm, consciously stopping every ten feet to achieve this, then stop at =
120-80=20
for 30 seconds each. </SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE:
12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial color=3Dblue
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">At 70, the =
gas=20
switch, I would do 3 minutes to get the full effect of the switch. See =
the=20
post that talks about circulation =
time.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial color=3Dblue
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">The 3 =
minutes each at=20
60,50,40</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial color=3Dblue
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">5=20
at30</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial color=3Dblue
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">8 at=20
20</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial color=3Dblue
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">ascend to 0 =
in 3=20
minutes</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3D"Times New Roman" size=3D3><SPAN=20
style=3D"FONT-SIZE:
12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=3DMsoNormal><FONT face=3DArial color=3Dblue
size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">I notice =
you make a=20
comment about the line. Get in the habit of consciously stopping every =
ten=20
feet to insure the proper ascent rate. Coming up from depth too fast =
is what=20
gives you the subclinical symptoms hours after the dive. You trap gas =
in=20
poorly perfused areas and these later swell and react, the bubbles in =
them=20
grow, the reaction presses on nerves, and you get things like numbness =
in some=20
extremities while you are sleeping that night - not a cns hit, a cns=20
manifestation. Skin bends would be a more obvious consequence of =
skipping deep=20
stops.</SPAN></FONT><o:p></o:p></P></DIV>
<BLOCKQUOTE style=3D"MARGIN-TOP: 5pt; MARGIN-BOTTOM: 5pt">
<P class=3DMsoNormal style=3D"MARGIN-BOTTOM: 12pt"><FONT =
face=3DTahoma=20
size=3D2><SPAN style=3D"FONT-SIZE: 10pt; FONT-FAMILY: =
Tahoma">-----Original=20
Message-----<BR><B><SPAN style=3D"FONT-WEIGHT: =
bold">From:</SPAN></B>=20
Dogtrner1@ao*.co* [mailto:Dogtrner1@ao*.co*]<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, February 15, =
2002 7:22=20
PM<BR><B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> =
trey@ne*.co*;=20
techdiver@aquanaut.com<BR><B><SPAN=20
style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> Re: Standard Deco=20
Dive</SPAN></FONT><o:p></o:p></P>
<P class=3DMsoNormal><FONT face=3DArial size=3D2><SPAN=20
style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial">I'll bite on this one. =
<BR><BR>My typical dive is to 165ft. 20 minutes bottom time. =
I=20
use a 35/20 helium mix. <BR><BR>My deco is on 50% starting at 70 ft. =
=20
<BR><BR>I do a 1 minute stop at 100 (run time is 22 minutes) <BR>1
=
minute at=20
70, while switching gas.(run time is 24 minutes) <BR>1@ 60(run time =
is 25=20
minutes) <BR>1@ 50(run time is 26 minutes) <BR>2 @40(run time is 28 =
minutes)=20
<BR>4 @ 30(run time is 32 minutes) <BR>7 @ 20(run time is 39 =
minutes) <BR>18=20
@10(run time is 57 minutes) <BR><BR>I observe coming up the line =
slowly,=20
hand over hand. Probably about 30 ft per minute.=20
<BR><BR>Karla</SPAN></FONT><FONT face=3DArial><SPAN=20
style=3D"FONT-FAMILY: Arial">=20
=
</SPAN></FONT><o:p></o:p></P></BLOCKQUOTE></DIV></DIV>&l
t;/BLOCKQUOTE></BODY=
></HTML>
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