Well, if standard pressure was changed, the flight-level-limit would have to be changed to match. e.g. if standard pressure was 980mb rather than 1013, then the limiting flight level would be set at FL 120 rather than 130.
If a cosmic storm whisked away the earth's atmosphere, we'd still die at sea level because our lungs knew they were at flight level 10000, and this is the more valid metric to use for this purpose.
Or am I misunderstanding something too?
Last edited by abgd; 7th March 2013 at 18:32.