On Mon, Oct 27, 2014 at 3:33 PM, Paul Sargent <[email protected]> wrote: > > Certainly for the moment I'd keep it simple. Personally I'd favour no > numbers, rather than wrong ones, so I'd forget about computing constant rate > O2 usage. It's just not that useful IMHO. It's too far removed from the > amount of O2 I use on a dive, and gas planning the CCR part of a dive really > isn't that big a deal compared to OC. > > For example: A one hour dive should be 20bar (60 litres) out of a standard 3 > litre cylinder - just calculating 1 litre a minute. That's just way off. I > always use about ~50 bar on a ~40 metre dive, so I tend to make sure I've > got at least 100 bar when I jump in. > > (or have a missed a different method of calculating things in the various > mails?)
The method of calculation is just that but, as I see things, it would happen the other way around: After this dive Subsurface would show you that your oxygen SAC is 2,5 l/min (50 bar of a 3 l cylinder used on an hour dive). So on your next planning you should use 2,5 l/min for oxygen and not the usual 1 l/min. Rodrigo _______________________________________________ subsurface mailing list [email protected] http://lists.subsurface-divelog.org/cgi-bin/mailman/listinfo/subsurface
