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Guys, Please enlighten me as to why "No diving on RB whilst teaching RB". What are the problems when teaching mix whilst diving RB? Thanks, JT -- John Taylor Marketing and Trading Systems CREDIT | FINANCIAL SUISSE | PRODUCTS * +852 2101 6927 (Office) * +852 2101 7698 (Fax) * +852 9031 6395 (Mobile) * mailto:john.taylor@cs*.co*.uk* * mailto:live4diving@ho*.co* > -----Original Message----- > From: Errol Kalayci [SMTP:errol@ga*.ne*] > Sent: Thursday, September 02, 1999 8:16 AM > To: kirvine@sa*.ne* > Cc: Steven Bliim; techdiver@aquanaut.com > Subject: Re: Rebreather problems? > > George, > This guy was teaching trimix, not rebreather. Even scarier. However, all > agencies except GUE allow an instructor to teach rebreather while diving > one. IANTD makes an exception for the Halcyon, due to Halcyon's own rule > regarding an instructor not diving a rebreather while teaching it. This > is > of course common sense. The following information was taken directly from > IANTD's latest standards: > To become a MK-5P instructor through IANTD all dives must be conducted > using > a Cis Lunar. Interestingly, I thought the Inspiration was for non > technical > dives though the standards for Technical Inspiration Diver provide that > all > dives must be deeper than 165' but no deeper than 260'. Of course > technical > diver and trimix training can be taken as part of the course which > increases > the number of dives from 4 to 8 total. Be afraid, be very, very afraid. > Errol > -----Original Message----- > From: kirvine@sa*.ne* <kirvine@sa*.ne*> > To: Errol Kalayci <errol@ga*.ne*> > Cc: Steven Bliim <Steven.Bliim@Mc*.co*.au*>; techdiver@aquanaut.com > <techdiver@aquanaut.com> > Date: Wednesday, September 01, 1999 7:53 PM > Subject: Re: Rebreather problems? > > > >Errol, what agency tells instructors to teach rebreather while on > >rebreather - we do not allow that with the Halcyon. Who is the idiot > >that cam up with that one? > > > > > >Errol Kalayci wrote: > >> > >> Steve, > >> So let me get this straight: 1) Barry was teaching a trimix course > >> while using a CCR. 2) Barry's other instructor did a normal dive and > >> deco, this implies either solo diver or abandonding Barry when he had > >> a problem. Does anyone still have a question why an instructor should > >> not be ona rebreather while teaching any course? > >> All things considered Steve, you were very lucky to live through such > >> a major violation of Rules #1 & 2. > >> Errol > >> > >> -----Original Message----- > >> From: Steven Bliim <Steven.Bliim@Mc*.co*.au*> > >> To: techdiver@aquanaut.com <techdiver@aquanaut.com> > >> Date: Tuesday, August 31, 1999 11:40 PM > >> Subject: Rebreather problems? > >> > >> The following is reported to have occurred in Sydney, > >> Australia in early August. One might say that Barry should > >> buy a lottery ticket after this one. > >> > >> What a weekend! In Sydney to start my trimix course with > >> Barry Hallett at > >> > Southern Cross, Saturday was dead flat so bugger the > >> course we did two 48m > >> > dives with a fairly hefty surface interval, 20m viz on the > >> Coollooli > >> > and the Dee Why. Did some theory and mixing that > >> afternoon, then Sunday > >> did > >> > another 48m dive on the wreck next to the Dee Why > >> (Meggol), on 21.5/22 > >> > Trimix, I had a lovely dive. Barry on his Buddy > >> Inspiration fully closed > >> > circuit rebreather however had a less than happy day (See > >> below for the > >> > full details). At almost 50m, Barry's 'breather gave him > >> pure O2, yup, 6.0 > >> > atm, needless to say he suffered major nausea, visual > >> disturbances, and > >> > what he describes as like being hit with 240v, twice. He > >> suffered two big > >> > hits but was able to make it to the surface on open > >> circuit, negating > >> > almost 30min of deco, no signs or symptons experienced - > >> he's a very lucky > >> > man. Not to be outdone, his other instructor, Kosta, also > >> on a Buddy > >> > Inspiration surfaced after a normal dive and deco, and > >> took a mild > >> shoulder > >> > hit of DCS, so he went down for another 20min of deco, > >> surfaced with no > >> > other problems. This is also after their new girl in the > >> shop took a foot > >> > hit on Wed after a 48m dive, normal profile with the only > >> contributing > >> > factor being she had cold feet - she's now going to buy a > >> drysuit! > >> > > >> > My dive went uneventfully, trimix is a lovely gas for > >> clearing the head > >> and > >> > focussing clearly, and completing tasks much more quickly. > >> Looking forward > >> > to using it on the 70m dives next month, then......! > >> > > >> > Barry's big day out: (don't read on if details bore you!) > >> > > >> > Barry's Inspiration uses three separate electronically > >> controlled O2 > >> > sensors and a polling method. Near the start of the dive > >> and on the > >> bottom > >> > at nearly 50m, one sensor went u/s, and the computer asked > >> him if he > >> wanted > >> > to recalibrate all three, and in his self admitted > >> complacency, he > >> answered > >> > yes. He later realised the computer was asking him a > >> question akin to "Do > >> > you want to suffer an enormous CNS O2 seizure and die, or > >> not?" As the O2 > >> > set point for the dive was 1.4, and as he had just told > >> the sensors that > >> he > >> > was now only at 1 atm, and therefore PO2 of 0.21, the > >> 'breather then > >> > commenced adding pure o2 into the loop, with the expected > >> results of two > >> > major seizures. He should not be alive to tell this > >> story, as on the > >> > ascent, having bailed to open circuit, his bailout gas > >> supply exhausted > >> (he > >> > suspects it wasn't full to start with - error #2), luckily > >> he had made it > >> > to the ascent line and was able to receive gas from > >> another diver, but he > >> > continued to the surface fearing another major hit, which > >> actually > >> > occurred. He was also not cognitive of one divers efforts > >> to give him > >> air, > >> > despite being right in his face. Barry will freely admit > >> he f___d up, due > >> > to complacency. He still has faith in the rebreather, and > >> is not shy to > >> > tell people what he did wrong in orer to let other people > >> learn from his > >> > mistakes. Here endeth the lesson. > >> > > >> > > >> > >> Regards > >> Steven Bliim > > > > > > -- > Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. > Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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