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  2. Cabin pressurization - Wikipedia

    en.wikipedia.org/wiki/Cabin_pressurization

    An airliner fuselage, such as this Boeing 737, forms an almost cylindrical pressure vessel.. 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 humans flying at high altitudes.

  3. Time of useful consciousness - Wikipedia

    en.wikipedia.org/wiki/Time_of_useful_consciousness

    Generally, old age tends to reduce the efficiency of the pulmonary system, and can cause the onset of hypoxia symptoms sooner. [3] Smoking drastically reduces oxygen intake efficiency, and can have the effect of reducing tolerance by 1,000–2,000 metres (3,300–6,600 ft). [4] Hypoxia can be produced in a hypobaric chamber. This can be useful ...

  4. Environmental control system - Wikipedia

    en.wikipedia.org/wiki/Environmental_control_system

    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. The cabin pressure is controlled by a cabin pressure schedule, which associates each aircraft altitude with a cabin altitude.

  5. Bleed air - Wikipedia

    en.wikipedia.org/wiki/Bleed_air

    Bleed air in aerospace engineering is compressed air taken from the compressor stage of a gas turbine, upstream of its fuel-burning sections.Automatic air supply and cabin pressure controller (ASCPC) valves bleed air from low or high stage engine compressor sections; low stage air is used during high power setting operation, and high stage air is used during descent and other low power setting ...

  6. Cabin pressure issue on Delta flight causes bloody ears and ...

    www.aol.com/cabin-pressure-issue-delta-flight...

    A photo taken by passenger Jaci Purser after the Delta flight she was on returned to the airport due to a cabin pressure issue that caused bloody noses and other problems for passengers. - Jaci Purser

  7. Alaska Airlines' decision not to ground Boeing jet despite ...

    www.aol.com/news/boeing-jetliner-suffered-in...

    The decision by Alaska Airlines to stop flying one of its planes over the Pacific Ocean to Hawaii due to warnings from a cabin-pressurization system — yet keep flying it over land — is raising ...

  8. Mooney M22 Mustang - Wikipedia

    en.wikipedia.org/wiki/Mooney_M22_Mustang

    Its Garrett AiResearch cabin pressurization system gives the equivalent of 11,000 feet (3,400 m) at the aircraft's operational ceiling of 24,000 feet (7,300 m). [6] As a demonstration of its high performance, the second production aircraft was flown non-stop from New York to the Paris Air Show in June 1967, the flight taking 13 hours 10 minutes.

  9. Lockheed XC-35 - Wikipedia

    en.wikipedia.org/wiki/Lockheed_XC-35

    The cabin pressurization was provided by bleeding air from the engines' turbo supercharger, the compressor outlet fed into the cabin and was controlled by the flight engineer. [4] This system was able to maintain a cabin altitude of 12,000 ft (3,658 m) while flying at 30,000 ft (9,144 m). [ 5 ]