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I really don't know the formulas or math involved, but, if I recall correctly, most commercial passenger aircraft are presurized to a constant 8000 msl during flight, regardless of the actual cruising altitude. Therefore, the pressure differential will vary according to the actual altitude of the aircraft.
Jerry
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Comments and opinions are my own and do not reflect those of my employer.
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Comments and opinions are my own and do not reflect those of my employer.
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