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Cabin pressurization is a process in which conditioned air is ... of 14.7 pounds per square inch (1 ... 12.0 psi pressurization system allowing for a ...
Aircraft cabin pressure is commonly pressurized to a cabin altitude of 8000 feet or less. That means that the pressure is 10.9 pounds per square inch (75 kPa), which is the ambient pressure at 8,000 feet (2,400 m). Note that a lower cabin altitude is a higher pressure.
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2.5 to 3 minutes 1.25 to 1.5 minutes FL300 (30,000 ft; 9,150 m) 1 to 2 minutes 30 to 60 seconds FL350 (35,000 ft; 10,650 m) 30 to 60 seconds 15 to 30 seconds FL400 (40,000 ft; 12,200 m) 15 to 20 seconds 7 to 10 seconds FL430 (43,000 ft; 13,100 m) 9 to 12 seconds 5 to 6 seconds FL500 (50,000 ft; 15,250 m) 8 to 10 seconds 5 seconds
The system cannot be deactivated once triggered, and must be reloaded after each use. [4] On-board oxygen generating systems (OBOGS) bleed compressed air from the engines, enrich the oxygen content by removing nitrogen using an oxygen concentrator, and regulate the supply to cabin pressure and temperature. They are continuously available and ...
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Decompression can occur due to structural failure of the pressure vessel, or failure of the compression system itself. [1] [2] The speed and violence of the decompression is affected by the size of the pressure vessel, the differential pressure between the inside and outside of the vessel, and the size of the leak hole.