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From: George Braly <gwbraly@gami.com>
To: "'lancair.list@olsusa.com'" <lancair.list@olsusa.com>
Subject: RE: Oxygen Ports
Date: Sun, 9 Sep 2001 21:40:43 -0500 
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Reply-To: lancair.list@olsusa.com

          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>>
          <<  Lancair Builders' Mail List  >>
          <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> 
>>
I have a VERY strong recommendation.

I have used the mountain high units extensively at altitude.  Frankly those
units will keep your SO2 up in the high 87-92 range, EVEN at 23000 to
25000'.  They have a feature where they will turn on automatically if the
local pressure drops below a preset altitude (say, 12,000').  

Thus, if the PIC wears that simple canula when up above 20,000',  and you
suddenly loose pressure,  you will never face a crisis, as the O2 will come
on automatically and keep your SO2 up in a range you can work with
indefinitely.   

THAT is what I would do, routinely, if it were my aircraft.

Regards,  George Braly


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