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With all this talk about body recoveries and emergency ascents to save people I think it brings up some good questions about what to do. I feel I've been lucky in that with the exception of entanglement I've never been in situation where by buddy was in trouble. My question has to do with the situation where you're in the middle of your dive and have already accumulated a deco obligation and must make an ascent to save your buddy. 1). Realistically, how much time can you spend on the surface? I know this is probably subjective and based upon time/depth but I've heard that about 5 minutes is a good "rule of thumb". 2). After you've surfaced with the diver and communicated all the information necessary to the surface support people where do you resume you deco? Example would be, say your dive profile called for a bottom time of 40 minutes @ 130 and you were doing the dive on air, trying to keep things simple here. According to Decom you're decompression schedule would be 5 min @ 40, 8 min @ 30, 17 min @ 20 and 27 min @ 10. How would you modify the schedule to handle the "pop to the surface"? Using the above example, what if you had been down for only 30 minutes, what about the full 40 minutes?? I'm trying to make the question as generic as possible so others, including myself can apply it should we be caught in a bad situation. Please no flames like I should be using mix, Nitrox 28% or pure O2 for deco. I think the question is simple and straight forward that we can keep the ego's in check on this one. Also, a reply that "I'd calculate it on the fly from experience" isn't really going to help anyone in this situation so keep the comment to yourself! Maybe some good can IMMEDIATLY come out of the diving emergencies we've had lately... Thanks, Art. P.S. Great diving weekend in NJ/NY! Did dives on the Algol (140+ in the holds) and Arundo (125+ on the sand). 30+ ft viz. on the wrecks, 60+ inside. Lots of stuff to see and lobster to catch!! -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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