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| Originally Posted by [b Quote[/b] (Bob Cooper @ Jan. 08 2004,20:50)]As far as the lost line scenario goes.....If you are lost, off the line (probably in zero vis) at 80m and you've lost your team too, deco is the least of your worries!
Hope this helps. Happy to discuss more but I don't have any experience of cave exploration. I can only imagine how the deco is planned for this sort of dive.
Bob |
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| Originally Posted by [b Quote[/b] ]You know better than to say "DIR is all about caves". DIR works for all kinds of diving blah, blah, blah! |
Sorry this wasnt intended as an insult. The point was you can usualy get a depth on an OW dive with a simple echo sounder but if your exploring an undived cave how would you know what the depths are? The next tunnel might plumet down to 200m or lead up to 20m???
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| Originally Posted by [b Quote[/b] ]For a regular cave dive, you will "know" the depth, because it is fixed, so the dive plan is based on time only. The dive is called on gas, time or comfort level etc. I have a set of tables and I select the appropriate table for the depth we are diving. So, lets imagine we dive a cave to a max depth of 30m, we might have a 20m table and a 30m table. |
Yes this is OK for a cave that has been explored by other divers and where the details of their explorations are known but I am talking about a virgen site. Surley you would need a shead load of tables to cope with the possable permitations of the dive.
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| Originally Posted by [b Quote[/b] ]Pushing "an extra 1000m into a cave" is a bit ambitious! |
This just displays my ignorance of cave diving 1000m dosent sound like a lot.
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| Originally Posted by [b Quote[/b] ]As far as the lost line scenario goes.....If you are lost, off the line (probably in zero vis) at 80m and you've lost your team too, deco is the least of your worries! |
Yes I apreciate its a bad place to be, but have you read the Snoopyloop site dive reports. He lost the line a couple of times so it obviously does hapen. If it did and you had enough gas to get out does the DIR deco on the fly give a viable option for getting out safley?
Again I stress this is just for discussion I dont want a ruck.
ATB
Mark Chase