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Date: Fri, 12 Jun 1998 06:57:17
From: KEVIN GONZALEZ <cockytrimix@us*.ne*>
To: techdiver@aquanaut.com
Subject: tragic death incorporated
CC: cavers@ge*.co*
The Trimix gods have once again deemed us lucky enuf to hear their thoughts. 
" skills and techniques need to be honed to perfection, but also performed with
due regard to the safety of the diver. Shallow water practice may not provide
the adrenaline rush (Narcosis BUzz for the dirty Bird) that can be experienced
at the deeper depths, but then again, it also prevents instructor heart attacks
when things don�t go as planned. Keep in perspective that although you, the
instructor, may be bored by the seemingly repetitive nature of these skills, in
many cases the student is fully task loaded and really doesn�t require
further "stimulation" to make it any more interesting for him/her! "
Wow TRagic Death Incorporated has a good idea hear do training in shallow water
first gee that make so much freakin sense.

"Intermediate Trimix certification, primarily targeted for those divers that
wanted to dive mid-range depths, but for whatever reason were uncomfortable
diving Air as the primary gas at these depths.  ( they can read a freaking ppo2
chart and see the brain damage that come sfrom diving deep on air?) Many
technical divers fail to recognize that there are individuals that are
susceptible to Nitrogen Narcosis or simply do not like the feeling it gives
them, regardless of the mental impairment.
         

         When all was said and done however, the practicality as well as the
Insurance showed that Trimix instructors have all the tools available to you
without the necessity of generating another level of certification. As a Trimix
Instructor, you train a student and at the completion of the course, certify
the diver to the depth level you are confident that they can perform. For
example, if you are
training a trimix diver, you would observe the skills and performance, ensure
dive planning all looks good, that the comfort in the water is apparent, then
the diver would be certified as a Trimix diver to the range of the Standards,
330 fsw/100 meters. For those divers that are not interested in the depths
below about 200 fsw/60 meters, the instroketor can train them in the mid-range
depths (130 fsw/40 meters to 200fsw/60 meters) and at the end of the course
apply the depth limitation  appropriate for that diver. The same amount of
classroom is required in either case, there is no watering down of a trimix
course just because they aren�t going to depths below 200 fsw/60 meters. This
begs the question however, how do they qualify for the prerequisite Extended
Range diver, which technically requires 2 dives deeper than 165 fsw/50 meters.
The prerequisites for the Trimix Diver course still require 150 dives or
equivalent at the discretion of the instructor. The Extended Range diver course
requires 100
dives or equivalent at the discretion of the instructor. The Trimix Instructor
would perform additional initial dives in the 100 fsw/30 meter to 130 fsw/40
meter range to verify the candidates understanding of the effects of pressure
on such things as buoyancy reaction time and cylinder duration. The Trimix
Instructor would also
ensure that the equipment configuration comfort was firmly established. In
other words, when the Trimix Instructor has verified that the diver is
competent at the 100 fsw/30 meter to 130 fsw/40 meter range, has adequate
numbers of dives and is fully aware of the effects of pressure, they may enroll
the candidate in a
Trimix diver course without the Extended Range prerequisite. The student can
then be trained in the mid ranges of 130 fsw/40 meters to 200 fsw/60 meters
utilizing Trimix as the primary breathing gas. 
At the successful completion of the course, make a notation as to the depth
limitation, typically 200 fsw/60 meters in this case, and send to TDI HQ as you
normally would.         .

         Joe Odom

         International Training Director
Wow what can you say when joe odom talks instead of the slob they actually
sound ike they give a rats ass about teaching safely.  




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