Live from Rebreather Forum 3.0 in Orlando FOLLOW THE YELLOW CAVE ARROWS!

[HowardE]

Hi all,

Thanks for the postings about the rebreather forum.

I am just learning to dive. I have completed my classroom and pool dives, and will do my cert. dives next weekend. I have been practicing in the LDS pool for several weeks. Looking to the future though, I am really excited about rebreathers. They seem like the perfect way to dive. I am wanting to learn more about rebreather diving, but I know I need to log lots of open circuit dives, tech dives, etc. first. I am looking for suggestions on what would be the best books, videos, etc. for me to check out about rebreather flying while I am building some experience. I figure the people following the rebreather forum will have the best and most up to date information on this subject, so I was asking on this forum.

Thanks again

Post here on SB in our Rebreather forum

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[Doppler]

One item of note was that statistically there is really no difference in apparent safety (number of fatal events) comparing manual units to computer-controlled ones.


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[mselenaous]

Here are some detailed summaries posted by other attendees:
http://www.scubaboard.com/forums/content/372-rebreather-certification-numbers-released-public.html

http://www.scubaboard.com/forums/content/373-rf3-coverage-rebreather-mortality-rate-analysis.html

http://www.scubaboard.com/forums/content/375-rebreather-forum-3-conclusions-recommendations.html

 

[The Chairman]

One item of note was that statistically there is really no difference in apparent safety (number of fatal events) comparing manual units to computer-controlled ones.

Up until recently, a rebreather diver has always been able to override the computer's decision. The newer breeds (like the Poseidon Tech) don't allow you to make a mistake that might put you into more danger like adding O2 when you PPO exceeds a certain point. Yes, electronics can fail, but the human brain is far more prone to failure, inattention and confusion even on the surface. The predisposition for failure only increases with depth.

 

[HowardE]

Up until recently, a rebreather diver has always been able to override the computer's decision. The newer breeds (like the Poseidon Tech) don't allow you to make a mistake that might put you into more danger like adding O2 when you PPO exceeds a certain point. Yes, electronics can fail, but the human brain is far more prone to failure, inattention and confusion even on the surface. The predisposition for failure only increases with depth.

Actually, the Poseidon Tech rebreather DOES allow you to manually fly the unit. It's the Cis-Lunar MK VI (the recreational rebreather) that doesn't have manual add buttons. This one is a "pass / fail" only situation, if the rebreather detects any failures, the diver is told to abort (bail out to open circuit) the dive.

 

[The Chairman]

Actually, the Poseidon Tech rebreather DOES allow you to manually fly the unit.

This is incorrect... there are no "manual" controls on the Poseidon Tech. You can fly it "by wire" up to a certain point. But if you try to add Oxygen and have already exceeded your target PO2, it will simply not let the solenoid fire. The ADV is sort of manual and the bailout switch is manual but other than that, it's all electronic.

 

[Roz]

There were a number of lectures recorded at Rebreather Forum 3 in May 2012. (This key international safety conference about rebreathers was organised by the AAUS, DAN and PADI). You don't need to be a rebreather diver to benefit from these lectures. If you dive, you will learn something from every talk. As they come on line, I'll post them up here as a resource for all. ** The first video lecture will be on thermal physiology and it was given by USA based Dr Neal W Pollock of Divers Alert Network / Duke University. THERMAL PHYSIOLOGY AND PROTECTION Dr Neal W Pollock 9:15, Friday 18 May 2012, Boca Room III, Caribe Royale Hotel “Diving is carried out in a wide range of environments and conditions. Thermal stress can be an important issue, particularly for the long exposures often associated with technical diving. Proper preparation can improve comfort, performance and safety. This presentation will discuss thermal stress, thermal protection, and implications for diving health.” Rebreather Forum 3 Thermal Physiology and Protection | Rebreather Forum 3 Dr Pollock's biography can be found here; https://custom.cvent.com/1B5BE59770CE41F5B02AC64FD1569A43/files/111293dbdd644f019be08fd8646cfec9.pdf ** The second video lecture will be on diving fatalities and it was given by USA based Dr Petar Denoble of Divers Alert Network. RECREATIONAL SCUBA DIVING FATALITIES BY NUMBERS Dr Petar Denoble 10:30, Friday 18 May 2013, Boca Room III, Caribe Royale Hotel "There can be risks associated with scuba diving that may lead to accidents. Analyzing these accidents, particularly fatal cases, is an important tool we have to identify and try to prevent potential problems to improve diving safety. Using statistical analyses to observe trends in scuba diving accidents, this talk explains the disparity between mishaps and fatalities, fatality rates amongst divers, and trigger events or disabling injuries that might contribute to fatalities.” Rebreather Forum 3 Recreational Scuba Diving Fatalities by the Numbers | Rebreather Forum 3 PDF download of slides can be found here; http://www.rf30.org/final2012/wp-co.../Denoble_Diving-fatalities-by-numbers_PDF.pdf Dr Denoble's biography can be found here; http://www.rf30.org/speaker/dr-petar-j-denoble/ ** The third Rebreather Forum 3 video lecture to be uploaded is given by USA based Michael Menduno. LESSONS LEARNED FROM REBREATHER FORUM 2 Michael Menduno 15:15, Friday 18 May 2012, Caribbean Ballroom III, Caribe Royale Hotel "The 1996 Rebreather Forum 2 in Redondo Beach concluded the sport diving community had little experience with rebreathers. There was no infrastructure, discipline, training, or support comparable to the military. Retail support, third-party equipment testing, adequate manufacturer support, and CO2 sensors were lacking. Lessons learned since RF2 will be addressed through the perspectives of 20 – 25 industry veterans." Rebreather Forum 3 Lessons Learned From Rebreather Forum 2 | Rebreather Forum 3 Michael's biography can be found here; Rebreather Forum 3 Michael Menduno | Rebreather Forum 3 Rebreather Forum 2 Conference Proceedings can be found here; Proceedings of Rebreather Forum 2.0.