Mailing List Archive Mailing List Archive
X400-Originator: /dd.id=1041896/g=joe/i=jj/s=mierwa/@bnr.ca X400-MTS-Identifier: [/PRMD=BNR/ADMD=TELECOM.CANADA/C=CA/;bcars735.b.064:24.10.93.09.04.31] X400-Content-Type: P2-1984 (2) Content-Identifier: re:diving/fly... From: "joe (j.j.) mierwa" <joemama@bn*.ca*> Sender: "joe (j.j.) mierwa" <joemama@bn*.ca*> Message-ID: <"21065 Wed Nov 24 04:04:34 1993"@bnr.ca> To: techdiver@opal.com Subject: re:diving/flying Devon had wrote: >I recently purchased a watch with an altimeter on it. And I just got back >from a trip (cave diving!) where I noticed that airplanes tend to keep >the cabin pressure around the 4000-5000 feet of altitude range. So, other >than the possibility that they may go outside this range, is there any >reason you can't dive the day before flying as long as you adjust for the >altitude? Not that I plan to try it. I'm just wondering if I'm missing >anything. > The typical pressurization in a contemporary airplane is typically at or near 8000 feet. I'm definately no expert, but the pressure reduction seems to be enough to cause DCI after following moderate dive profiles. Having been a volunteer in the ongoing DAN flying after diving study, I know of at least 3 hits so far, 1 with a profile of 60 feet at 1 hour, with a 1 hour surface interval and also 1 definate and one very possible hit after a profile of 60'@ 1 Hour with a 4 Hour interval. Granted, that's not much time, but the average hits per diver seemed to be rather high, (between 5 and 10 percent) if I've got the numbers right. One item you wrote that interested me was the fact that you'd adjust for the altitude. Exactly how would you do that? Joe
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]