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Mike, You have brought up some good points here. I personally am a firm believer in using helium in most of my dives. Especially anything below 100'. I teach NAUI Tech in Canada and in our cold waters I believe this is vital. The problem as I see it though is regulating these people to do shallow , no staged deco dives. The other problem is to get rid of the myth of trimix as some type of witch's brew. I for one don't believe in coursing people to death to get the training that should be there from the beginning. I think what you suggest is possible and may come in the future with organizations such as WKPP and GUE leading the way. Hell, I will readily admit to teaching their techniques and philosophies to my students in Canada, even though I am a NAUI Instructor. Why reinvent the wheel. Mike Zimmerman wrote: > > You did ask agencies why they did not teach mix in the 130 to 150 range. = > > I for one did answer you and stated IANTD does in it's intermediate = > > trimix program. > > Actually I was referring to contact I had with a different agency. > Apologies if I slighted IANTD, that wasn't the intent. > > > Now as far as skill and theory go it does require more skill to do = > > deeper dives than shallow ones and more equipment management. > > Ok, but we're not talking about teaching these divers to go DEEPER. > I am talking about dives tha are already occuring ON AIR. > > Taking a NC wreck, for example. Plenty of them in the 100'-130' > range. Very "recreational" depth. Also widely considered to be > in the range where narcosis will be a factor. > > Why not a simple course to teach them to use mix? If I remember > correctly, the IANTD Intermediate mix course is 70 hours? > (apologies if I have that confused with another) > > After all what do we teach OW1 students, or basic nitrox students > in reality? > > Here is a table. It says you are breathing mix XYZ. If you are > breathing XYZ, here is how long you can stay at depth D. when you finish > your pressure group is #. > > Would it REALLY matter if that was a heliox table? > > > at having magic wands waived to allow divers to do deep mix dives (as in = > > We're not necessarily talking about DEEP dives.. only narcotic dives > (when done on air) > > You have to step back from any preconceptions, but really, if > you taught OW1 with heliox, think about the difference in > narcosis.... > > Kinda amazing how simple that could be (if you ignore the issue > of availability) :-) Point being we seem to like to teach > stages, deco, gas managament, yadda yadda yadda with mix... > it doesn't have to be so (I would argue). > > Regards, > Mike > -- > 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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