SCR=gas extender
VS
CCR=gas miser
VS
CCR=gas miser
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48 hours!!!!!!!!
You must mean 4 - 8 hours...
Is he talking about 1 CCR or more???
Note to the other RB divers....
A scrubber that last 48 hours???? Is that a Holy Grail or What!!!!!
He definitely says 48 (see pages 173 and 174). He talks about a diver named Bill Stone spending 24 hours underwater at Wakulla Spring using a MK-1 rebreather, and "calculations of his remaining consumables showed that he could have stayed another 24 hours. His biggest problem during the test dive was boredom."
Actually not correct. You have to allow for metabolized O2 and you will end up with something less than 32% depending on metabolic rate.When you plug in a tank of 32%, you're getting 32%, assuming all is well with the unit.
He definitely says 48 (see pages 173 and 174). He talks about a diver named Bill Stone spending 24 hours underwater at Wakulla Spring using a MK-1 rebreather, and "calculations of his remaining consumables showed that he could have stayed another 24 hours. His biggest problem during the test dive was boredom."
Don't know much about rebreathers, but that is what he says.
Actually not correct. You have to allow for metabolized O2 and you will end up with something less than 32% depending on metabolic rate.
Or minimizes some other limit like max ppO2, CNS, or pulmonary toxicity.CCR on the other hand I consider as "blending on the fly". You are basically always diving the "best" mix for the given depth which minimizes your decompression obligation.