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Date: Wed, 4 Sep 1996 05:02:45 -0700
From: iantdhq@ix*.ne*.co* (IANTD )
Subject: Re: Q.T. on the U.T. Rebreather - Fraud by any other name
To: Richard Pyle <deepreef@bi*.bi*.Ha*.Or*>
Cc: cavers@ge*.co*
Cc: techdiver@terra.net
Rich

Dive computers are a nice bonus and if they work correctly, I for one 
will follow them where there use is practical. Most open water dives 
result in tables giving better dive profiles, but in EANx range cave 
dives I find the bridge gets me out of the water as quick or quicker 
than tables with oxygen deco, due to multilevel diving. Of course I 
always have tables with me and check the profiles everydive. Guess my 
habit is bad as I exit the water by whichever clears first.

On a mix dive computer when they are available and especially on closed 
?circuit I will definitely use them, again like you I will also carry 
custiom tables.

On the UT, I read the report by trimix and George. We did have the 
units here and they were assembled on site. They did have problems. Two 
people outside the divers who were to be trained on them saw them here
George Irvine and Bill Mee, Bill states he is not the trimix diver who 
did the report. 

When they were here it was explained to them as it was to us, that the 
"first production run(prototypes as it turns out) did not incopoirate 
the final electronics configuration. In fact everything that is 
addressed in the trimix diver post was discussed and we were assured 
that all those issues were being corrected. All the electronics 
will(future tense)be sealed off and isolated from the loop. The only 
thing to be exposed will be the sensors and they are to be 
repositioned.  So assuming these things will happen UT's market systems 
will not be represented with  the problems addressed in trimix divers 
post.

In spite of the systems failure we did put together a really good 
training program during the second week although we did remain in the 
pool due to systems failures (electronic). If they do get the 
electronics up to par with the execellent cannister design this will be 
a neat system. Billy Deans and I will be diving the 'NEW UT Units 
within about three weeks. They are also taking them to first the UK for 
man dives in the chamber and extensive testing then they will go to 
either Sweden or Finland for cold water and unmanned chamber testing. 
This testing will be supervised by Dudley Crosson, who does not work 
for UT and is quite objective about the system. After all this, the 
unit plus whatever is modified due to the changes scheduled now and 
those that may be as a result of the test will go on the market.

At that time the system should be looked at and see if it provides the 
safety each interested diver would like in a closed circuit system. 

Yes, they were premature getting the system out before it was a 
finished product, but at least they are holding off marketing until the 
unit is QA and user ready. 


When do you think the Cis will be out, I really enjoyed diving on it in 
January and thought they would already be on the market.
Safer diving to you 
tom 

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