For decades, commercial passenger aircraft relied on a system that tapped pressurized air directly from the engines to pressurize and condition the cabin. That bleed air system ha ...

As commercial passenger jets fly far above altitudes where people can breathe, all aircraft are pressurized. However, aircraft pressurization is still a compromise as they are pressurized not at sea ...

Step aboard any Boeing 737, shut the door, and watch the world outside shrink behind double-paned windows. As the big jet climbs, its cabin pressurization system begins to invisibly pump steadily more ...

On modern airliners, it is usually an automatic process and the airplane begins to pressurize as soon as it takes off. On most modern jets, the pressurization system gets the airplane’s intended ...

Commercial jet aircraft are designed to carry passengers safely and comfortably from one point to another. The external environments of the aircraft include taxiing, takeoff, cruise, and descent; ...