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Hi all,
	Like many other folks on this list, I have tended to be more of a 
lurker than an active poster, and I have certainly learned a good deal in 
that time (kudos to all the folks who put their time and energy into this 
list).
	In the discussions involving rebreathers, however, something struck 
me as being a wee bit strange.  Talk so far has been on how to ensure that 
the ppO2's stay in the safe ranges (ie. <1.2 ata O2 or so).  There's been 
talk of having 'puters automatically take this into account and adjusting 
the oxy and diluant proportions accordingly.  If memory serves, one of the 
USN jobbies does just this.  However, on a tour of DCIEM I was introduced 
to a rebreather used by some of the CF's divers, and its' unusual feature 
was its' simplicity - O2 flow rate was set up prior to the dive, and the 
diluant proportion / supply was actually controlled by a mechanical sensor. 
Hence, as depth increased, so was the dilution factor.  According to our 
clearance diver / guide this C2 unit (or SC2 unit?) was known as the Lynx, 
and was slated for production by a company whose name escapes me.
	Can anyone elaborate on this?  And would anyone out there feel like 
donating a large sum of money to a non-profit diving organization (ie. ME) 
to obtain one of these?  Thanks!

	Let's go watch the fishies!

	Pete
_________
      / | Pete St. Onge (pstonge@tr*.ca*  |  aka "CMDR Keener")
    /  /| Catharine Parr Traill College, Trent University,
  /  /  | Environmental and Resource Sciences
/  /    | Peterborough Ontario CANADA K9J 7B8
_/______| NAUI AOW, RESCUE, L1979, DAN 164410, NAUI Instructor Candidate
________|______________________________________________________________________

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