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---- Microsoft Mail "VMS Mail" message ---- From: HeimannJ on Fri, Feb 19, 1993 2:24 PM Subject: RE: Deco stops in open ocean To: techdiver Bill Mayne writes: >To give you an idea of the range of dives for this, my longest decompression >came after a dive to about 165 feet for 45-50 minutes, with a fairly square >profile. Decompression by computer (Aladin) was 131 minutes, including >several minutes of padding. USN tables would call for less. The dive was [...] Yow! I've done hangs in excess of an hour, but none over two. I dive in the open water, where conditions aren't always predictable, and really long hangs are risky. My question is, what do other people do on long hangs? I usually do equipment drills, and otherwise just watch the jellyfish. I've heard that some people read books, but I'm not sure how this works unless one brings the books printed on plastic designed for kids' baths. John P.S. For what it's worth, I also typically plan dives on Buhlmann, and write the numbers on my slate, but then use an Aladin Pro for the dive, with USN tables as backup. My Buhlmann tables do not extend to long or deep exposures, however, so I am forced to plan based on USN (pushed down on depth and bottom time) for long or deep dives. On the other hand I usually decompress on 50/50 or O2 for these dives, which add a healthy margin of safety even on USN tables.
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