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Your reference to US Navy use of air to 190' while technically correct = is misleading at best. The Navy prohibits any open circuit SCUBA = diving below 130' except in cases of "operational necessity" and then = to a max depth of 190'. Planned deco dives on SCUBA is also = prohibited. In practice I have never seen SCUBA dives below 130' and = those for very short durations on very rare occasions. The Navy does dive surface supplied to 190' on air, but the degree of = topside control of the diver reduces the associated danger = dramatically. A diver more severely impacted than normal (which is = non-trivial!) would be recognized by his topside crew in his responses = to verbal communication. Being surface supplied, the diver cannot go = off into the depths on his own. In the event of a real problem with = the diver, his buddy can always locate him or the standby diver is = available to help out. Also requirements for dives at this depth = include a chamber in the immediate vicinity of the dive site and a = Diving Medical Officer on site. Comparison of this type of air diving to typical civilian diving is = completely inappropriate. Mr. Silverstein, with all due respect, your post is BS! B.L. Flank > -----Original Message----- > From: Joel Silverstein [SMTP:joelsilverstein@wo*.at*.ne*] > Sent: Thursday, August 19, 1999 10:47 AM > To: techdiver@aquanaut.com > Cc: Bill Mee; Tom Mount; bdi@wh*.ne*; Mark the Nark Andrews; Afonso = Pinheiro Junior; Barrie Heard; Bill Nadeau; Dick Rutkowski; Erika = Haley; Fabio Amaral; Fabio Ruberti; Frans Vandermolen; = wahoo2001@ao*.co*; WahooJan@ao*.co*; Garlooent@ao*.co*; Garry Howland; = Gil; Gina & Mark Leonard; Gregg Stanton; IANTD Czech; IANTD Germany; = IANTD Greece; IANTD Holland; IANTD Ireland; IANTD JAPAN; IANTD Japan = Training; IANTD Korea; IANTD Micronesia; IANTD Philippines; IANTD = Philippines Alex; IANTD Portugal; IANTD S.E. Asia; IANTD Scandanvia; = IANTD South Africa; IANTD Spain; IANTD Sweden; Jill Heinerth; Jim Mims; = John Thornton; Joseph Dituri; kevin gurr; Kim Cochrane; Lamar Hires; = Nick Jewson; Paul Lijnen; Paul Neilsen; REG BOER @ BARBARA HENSBY; = Richard Nordstrom; Richard Pyle; Shelley orlowski; Vebj> =F8rn Karlsen; = Victor Williams; William J Turbeville II; Jr."; cavers@ca*.co*; Jim = Cobb; kirvne@sa*.ne*; "\"Jess Armantrout\""; Dan L. Volker; "\"Jody = Everett\""; Lawrence Orchard-London; john@ro*.co*.uk*; = "\"Chris Werner\"" > Subject: Re: DEEP AIR VOTE >=20 snip> > The USN and most every commercial operation still uses air to depths = of > 190 fsw on a regular basis using hat and hose.=20 snip> -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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