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- Definition: Cabin altitude refers to the equivalent pressure altitude that is maintained within the cabin of a pressurized aircraft. It is the altitude at which the air pressure inside the cabin is equivalent to a certain altitude above sea level, even though the aircraft may be flying at a much higher altitude.
- Purpose: Maintaining a specific cabin altitude ensures that passengers and crew experience a comfortable and safe environment, with adequate oxygen levels and pressure, despite the lower outside pressure at high altitudes.
- Example: “While the aircraft was cruising at 35,000 feet, the cabin altitude was maintained at 8,000 feet to ensure passenger comfort.”