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This is a multi-part message in MIME format. ------=_NextPart_000_0010_01C1B6AC.C6E1C700 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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 ------=_NextPart_000_0010_01C1B6AC.C6E1C700 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Dus-ascii"> <META content=3D"MSHTML 5.50.4522.1800" name=3DGENERATOR></HEAD> <BODY> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2>I=20 would make the following changes: slower decent, then after 20 at the = bottom,=20 ascent at 30 fpm, consciously stopping every ten feet to achieve this, = then stop=20 at 120-80 for 30 seconds each. </FONT></SPAN></DIV> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2>At 70,=20 the gas switch, I would do 3 minutes to get the full effect of the = switch. See=20 the post that talks about circulation time.</FONT></SPAN></DIV> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2>The 3=20 minutes each at 60,50,40</FONT></SPAN></DIV> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2>5=20 at30</FONT></SPAN></DIV> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2>8 at=20 20</FONT></SPAN></DIV> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2>ascend=20 to 0 in 3 minutes</FONT></SPAN></DIV> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2></FONT></SPAN> </DIV> <DIV><SPAN class=3D200493010-16022002><FONT face=3DArial color=3D#0000ff = size=3D2>I=20 notice you make a comment about the line. Get in the habit of = consciously=20 stopping every ten feet to insure the proper ascent rate. Coming up from = depth=20 too fast is what gives you the subclinical symptoms hours after the = dive. You=20 trap gas in poorly perfused areas and these later swell and react, the = bubbles=20 in them grow, the reaction presses on nerves, and you get things like = numbness=20 in some 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.</FONT></SPAN></DIV> <BLOCKQUOTE> <DIV class=3DOutlookMessageHeader dir=3Dltr align=3Dleft><FONT = face=3DTahoma=20 size=3D2>-----Original Message-----<BR><B>From:</B> Dogtrner1@ao*.co*=20 [mailto:Dogtrner1@ao*.co*]<BR><B>Sent:</B> Friday, February 15, 2002 = 7:22=20 PM<BR><B>To:</B> trey@ne*.co*; = techdiver@aquanaut.com<BR><B>Subject:</B>=20 Re: Standard Deco Dive<BR><BR></FONT></DIV><FONT = face=3Darial,helvetica><FONT=20 size=3D2>I'll bite on this one. <BR><BR>My typical dive is to 165ft. = 20=20 minutes bottom time. I use a 35/20 helium mix. <BR><BR>My deco = is on 50%=20 starting at 70 ft. <BR><BR>I do a 1 minute stop at 100 (run = time is 22=20 minutes) <BR>1 minute at 70, while switching gas.(run time is 24 = minutes)=20 <BR>1@ 60(run time is 25 minutes) <BR>1@ 50(run time is 26 minutes) = <BR>2=20 @40(run time is 28 minutes) <BR>4 @ 30(run time is 32 minutes) <BR>7 @ = 20(run=20 time is 39 minutes) <BR>18 @10(run time is 57 minutes) <BR><BR>I = observe=20 coming up the line slowly, hand over hand. Probably about 30 ft = per=20 minute. <BR><BR>Karla</FONT> </FONT></BLOCKQUOTE></BODY></HTML> ------=_NextPart_000_0010_01C1B6AC.C6E1C700-- -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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