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Paul
20 hour at what altitude?
Mountain High EDS with a 22 cu ft cylinder delivers as follows:
10,000 ft 61.31 hours
15,000 ft 40.88 hours
18,000 ft 34.06 hours
Richard
www.craggyaero.com
I'm not getting quite that much time with mine. It seems that I tend to
breathe frequently and shallow which seems to use much more O2 that slow
deep breathing. I'm working on that.
Bill Daniels