Final answer:
Cabin differential pressure is the difference in pressure between the inside of the aircraft cabin and the outside atmospheric pressure. It is measured in pounds per square inch (psi) and is important for maintaining passenger comfort and safety during flights.
Step-by-step explanation:
In aviation, cabin differential pressure is the difference in pressure between the inside of the aircraft cabin and the outside atmospheric pressure. It is usually measured in pounds per square inch (psi).
The cabin differential pressure is an important factor in maintaining the comfort and safety of passengers during flights.
For example, if the cabin differential pressure is 8 psi, it means that the pressure inside the cabin is 8 psi higher than the outside atmospheric pressure.
This pressure difference allows the cabin to maintain a comfortable environment at high altitudes, where the outside air pressure is much lower.