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On Wed, 4 Sep 1996, John Todd wrote: > rich,no one who takes one of those 4 day iantd/tdi/whatever agency > courses on "rebreather diving" will be trained right to deal with manually > controlling the functions of the rebreather that are normally controlled by > the computer.you of all people should realize that.on top of that,if the > computer cant be trusted then how can you expect to trust the electronic > output generated by the computer?at least with the mechanical rebreathers > (err, semi-closed) theres no fancy gadgetry or tomfoolery to mess with,and > as a result its safer. - jt > John, Do you really think semi-closed rebreathers are safer? It seems to me that diving on a unit which depends on expected workload and theoretical O2 consumption rate isn't safe. But actually I won't go as far to say that semi-closed systems are unsafe. I would consider these aspects of semi-closed systems a disadvantage just as I would consider the likelyhood of electronic failure a disadvantage for fully-closed systems. ANTHONY MONTGOMERY Marine Option Program Waikiki Aquarium 1000 Pope Road MSB #203 2777 Kalakaua Ave Honolulu, Hawaii 96822 Honolulu, Hawaii 96815 Fax: (808) 956-2417 Fax: (808) 923-1771 Phone: (808) 956-6000 Phone: (808) 923-9741
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