"Jose" wrote in message
et...
I am curious to know how many GA pilots always have oxygen on board,

....

It's been reported that for some, especially at night, altitudes above
5000 feet cause noticable impairment. Nonin makes a fingertip device
(pulse oxymeter) to measure blood oxygen saturation. I'm curious myself
as to what my readings would be. However, it's a $300 device, and I don't
often fly that high anyway.


http://wingsandwheels.com/page35.htm down towards the bottom of the page -
$199


--
Geoff
The Sea Hawk at Wow Way d0t Com
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