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How high can you fly in an unpressurized airplane?

Ethan Hall | 2023-04-21 06:54:35 | page views：1510
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Julian Clark

Works at the International Finance Corporation, Lives in Washington, D.C., USA.
The higher the maximum differential pressure, the closer to sea level the system can maintain the cabin. Federal Aviation Regulations say that without pressurization, pilots begin to need oxygen when they fly above 12,500 feet for more than 30 minutes, and passengers have to use it continuously above 15,000.
2023-04-29 06:54:35
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Mia Williams

QuesHub.com delivers expert answers and knowledge to you.
The higher the maximum differential pressure, the closer to sea level the system can maintain the cabin. Federal Aviation Regulations say that without pressurization, pilots begin to need oxygen when they fly above 12,500 feet for more than 30 minutes, and passengers have to use it continuously above 15,000.
How Things Work: Cabin Pressure | Flight Today | Air & Space Magazine
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