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jet-planes-usually-fly-in-the-video Cabin pressurization - Wikipedia
Cabin pressurization is a process in which conditioned air is pumped into the cabin of an aircraft or spacecraft in order to create a safe and comfortable environment for passengers and crew flying at high altitudes. For aircraft, this air is usually bled off from the gas turbine engines at the compressor stage, and for spacecraft, it is carried in high-pressure, often cryogenic tanks. Jan 19,  · The opportunity to fly in a high-performance aircraft every now and then has given me some exciting and long-lasting memories: the formation .

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