In most pressurized jet aircraft, the pressurization is on a schedule.

Example, if you are at FL350 your cabin pressure will be about 5000 ft.

If you are FL310 your cabin will be at about 3500 ft.

If you are at FL410 your cabin will be at about 8000 ft.

Those are examples that I remember off the top of my head from teaching and flying for 20 plus years.

Ron "20"

A&P/IA


1976 Cessna 150M - N820ST
St. Charles Regional Airport KSET

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