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Drmike · 4th March 2008, 02:22

Quote: (Originally Posted by jkaterenchuk)

Thanks Mark I understand better but there is still one aspect that is unclear to me. Let me try to explain.

From what you have said your dive turn was controlled by your dil not your O2. If you assume that you have a complete unit failure at your maximum penetration which would be when your dill has reached half + 20 bar. How do you know how far you have penetrated the cave and hence how many minutes of exit time you need when calculating the BO at 100% for the exit?

John

Turn time is governed by when you reach limit of bail gas your carrying* or when you reach 1/3rds of O2 or dil (or whatever gas planning ratio your using) - whichever comes first.

*before dive you estimate max penetration distance given the bail gas your taking

4th March 2008, 02:22	#27 (permalink)
Drmike Custom Title Allowed! Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,165	Re: CCR Cave Training In Mexico with ProTec Quote: (Originally Posted by jkaterenchuk) Thanks Mark I understand better but there is still one aspect that is unclear to me. Let me try to explain. From what you have said your dive turn was controlled by your dil not your O2. If you assume that you have a complete unit failure at your maximum penetration which would be when your dill has reached half + 20 bar. How do you know how far you have penetrated the cave and hence how many minutes of exit time you need when calculating the BO at 100% for the exit? John Turn time is governed by when you reach limit of bail gas your carrying* or when you reach 1/3rds of O2 or dil (or whatever gas planning ratio your using) - whichever comes first. *before dive you estimate max penetration distance given the bail gas your taking __________________ Cave diving is a sport Wreck diving is a sport Diving in general is a sport 'Rebreather diving' is not a sport its the delusional obsession with a highly dangerous and often inappropriate piece of equipment
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