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At 04:10 AM 23/08/1998 -0400, Wrolf Courtney wrote: > >So the "bondage" wings were unable to lift Jane off the bottom, several >days after she was lost. >She was presumably very negative on the hang (a bad thing), using a lot >of lift from the BC to acheive neutral buoyancy. > >With her wet suit, she would clearly have been more negative on the >bottom during her dive. Presumably she managed to achieve at least near >neutral buoyancy, as she was able to leave the bottom with no reported >problem. Wrolf, I have read your speculations regarding the circumstances of Jane's last dive. You describe in detail a series of events which you suggest took place and led to her death. Tell me, have you done any trimix dives? Have you done any deep dives with multiple decompression gasses? Do you know what it's like to haul the mass of four or more cylinders and lights up from beyond 200ft?. Do you know how quickly you can burn your gas swimming to achieve or maintain a steady ascent from those depths or trying to hold a deco stop in the absence of neutral bouyancy and effective bouyancy control? I have asked you before to let me know what kind of experience you've had with trimix and multiple deco cylinders, but have not received your answer yet. Please oblige me with one. The reason I ask is because you are doing a lot of surmising and hypothesising on these lists. It is important for observers to understand where you are coming from. Are you re-visiting this tragedy and re-opening these wounds with a view to posing some real solutions based on a profound understanding of the dive and its problems, drawing from your own knowledge and experience, or are we witnessing (as I suspect) a crule, self-indulgent guessing game by an amateur (and I use the term in its broader sense) who is careless of the pain he is causing others? Wrolf. It's time to tell us what your experience base is. rgrds billyw > >Now, in ascending from thirty to twenty feet, she would have needed to >dump some air. > >But at twenty feet, she suddenly lost her neutral buoyancy, going >negative,and heading down. > >So what happened at twenty feet? Did she dump some air, but the dump >valve stuck open? Did she fail to dump enough soon enough, and have the >overpressure go off and get stuck? What makes her all of a sudden >uncorrectably negative at twenty feet, when she was doing fine at thirty >and below, with more need for lift. > >If she was uncontrollably negative at twenty feet, then it does seem >reasonable that she could not be made neutral at depth, where wet suit >compression and (possible) lungs filling would have added to the lift >requirements of the BC further. > >-- >Wrolf > > >P.S. At the request of Ken Sallot <kens@ac*.ne*>, I am >"keep[ing] this shit off of Cavers." That's OK Wrolf, I'll re-post the details of your experience over on cavers for you. A number of us are interested (I have emails to confirm this). Just post a summary of your experience levels in trimix, multiple decompression gas management and overhead (decompression or otherwise) environment diving to the techdiver list. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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