On Sep 28, 11:49*am, Jim wrote:
http://www.inogenaviator.com/products.html

This oxygen system looks interesting but is only certified to 15k and
battery life is only 6 hours. It would be nice to do away with filling
bottles. Does anybody know of any other systems available or on the
horizon that would be more useful to glider pilots?

Jim

And worst of all, the operating temperature is 5C to 40C, which isn't
much use at 15,000ft if the temperature is 0.

--
Philip Plane