I always heard the story of how the FAA came up with the requirements for supplemental oxygen being a middle aged DC-3 crew that was "observed" during flight at altitude. I can't help but picture a couple of fifty year old chain smoking guys that hadn't seen the inside of a gym since they played high school football. We all should know what the FAR's say and unfortunately in any sort of incident you had better have followed them to the letter but the actual fact is that oxygen requirements vary greatly between individuals.
Since my KR will be turbocharged I will fly at altitude on a regular basis and will carry supplemental O2, especially since I understand Aerox debuted a new portable and affordable system at Oshkosh, but I will also have one of those finger O2/blood analyzers to help me know when I really need to be on it. Stephen Teate Paradise, Texas
