I am not very smart or knowledgeable about flying a non-pressurized airplane... but isn't 12.5K msl about where O2 is needed... might the drifting around and directional control issues be related to oxygen starvation of the brain: just a thought.
Mark W N952MW -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of joe.kr2s.buil...@juno.com Sent: Wednesday, August 05, 2009 7:14 PM To: kr...@mylist.net Subject: Fw: RE: KR> Home from OSH John, I have not tested fully my service altitude but I did climb and maintain 17000 on the way home from Sun N Fun this spring going around clouds and the Washington Adiz. I was still able to climb at over 350 ft/min. So i would say that 17,999 is not out of reason. The one thing that I did note was that the plane needed flying all the time. It held altitude fine but it drifted around and needed directional control, as best I can remember as I did not have O2.
