Mailing List Archive Mailing List Archive
David Giddy gave some interesting ideas and reasons for considering > Has anyone tried an alternative of Reduced air Nitrox ? By this I mean air > to which *Nitrogen* has been *added* to reduce the FO2. One important point was > At first glance, the answer seems to be that you wouldn't want to do this > as the narcosis would be worse. However, recent work seems to have shown that > Oxygen is equally narcotic as Nitrogen and I therefore suggest that altering > the ratio of Oxygen to Nitrogen in either direction will not affect the > narcotic potency of the resulting gas. I believe we can use some references for these "recent work", even though susceptibility to nitrogen nacosis has a tremendous variance among divers. > - People have pushed air to incredible depths and seem to have coped > with the resultant narcosis (452 feet is the current record I think). That was Bret Gilliam's record years ago. I was on (read watching from 300 feet above) several of Dr. Dan Manion's dives to 485 feet (air scuba of course). His Official World Record was 525 ffw, established in March 1994. In August 1994, he made two other air dives to below 500 fsw ... making him the only diver who has gone below 500 fsw on air (and he has done it three times) and survived to tell about them. BTW, there are several digitized pictures of Dan (one or two on ascent) from these dives that are available by anonymous FTP on opus.admin.utc.edu in the directory /pub/scuba as (drdan1.jpg, ..., drdan7.jpg, I think. Not sure of the exact file names or whether the .gif versions are there). -- Bob. RFLNG@cl*.ed*
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]