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What is the cabin pressure of a 747?

One study of eight flights in Airbus A380 aircraft found a median cabin pressure altitude of 6,128 ft (1,868 m), and 65 flights in Boeing 747-400 aircraft found a median cabin pressure altitude of 5,159 ft (1,572 m).



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The Cabin Altitude of a pressurised aircraft is normally maintained at and altitude of 8,000 ft or less as a compromise between the physiological needs of the crew and passengers and the structural limitations of the aircraft. At 8,000 ft the use of supplemental oxygen is not required.

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The Air Pressure Is More Comfortable The A380, 787 and A350, on the other hand, can keep a cabin pressure on the lower end of that spectrum, near 6,000 feet, or somewhere between Albuquerque, New Mexico, and Colorado Springs, Colorado. For passengers in good health, that means they'll generally be more comfortable.

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Most aircraft cabins are pressurized to an altitude of 8,000 feet, called cabin altitude. Aircraft pilots have access to the mode controls of a cabin pressure control system and – if needed – can command the cabin to depressurize.

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Is it at all even possible for it to just drop? According to my company's training materials, an FAA study in the 1960s of depressurization events in business, airline, and military jet transport aircraft determined that the odds of experiencing cabin depressurization were one in 54300 flight hours.

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For operations conducted under Parts 121 and 135, the flight crew must use oxygen when cabin altitudes are above 10,000 up to 12,000 feet after 30 minutes and at all times when above 12,000 feet. The general aviation pilot flying an unpressurized airplane will not normally operate above 25,000 feet.

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Airbus A220 — the most comfortable economy The Airbus A220 is a unique plane, and is arguably the most comfortable narrow body jet out there. The plane is gorgeous on the outside, from the curves, to the cockpit windows, to the winglets. Even inside, the plane is exceptionally comfortable.

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And the fact that these things continue to get better is extraordinary. Park praised three aircraft types in particular: the Airbus A380, the Boeing 787 and the Airbus A350.

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However, generally, the larger the plane, the better it is at absorbing turbulence. For example, due to the sheer size, aircraft like the Airbus A380 and Boeing 747 are said to be two of the best planes for coping with turbulence.

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Between 9,000 and 12,000 metres (30,000 and 40,000 feet), the cruising altitude of most jet aircraft, air temperatures range from -40 to -70 °F (-40 to -57 °C).

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The reason commercial airplanes fly at 30,000 to 36,000 feet is because it places them in a unique part of Earth's atmosphere known as the lower stratosphere. The lower stratosphere is above the clouds, so commercial airplanes are protected against bad weather.

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If the plane is somehow kept pressurized, the cabin pressure is usually equivalent of 6000–8000 ft, which is lower pressure than the outside at sea level. Which means as soon as you unlock the door, it will swing inwards with a lot of force, as air from outside rushes in to re-pressurize the cabin.

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What happens if you open a pressurized door? If someone were to open a door while in an airplane, the consequences would be dire. The sudden decrease in air pressure would cause the plane to rapidly lose altitude and could potentially lead to a crash.

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Use the Valsalva maneuver during ascent and descent. Gently blow, as if blowing your nose, while pinching your nostrils and keeping your mouth closed. Repeat several times, especially during descent, to equalize the pressure between your ears and the airplane cabin.

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According to USA Today, the common cruising altitude for most commercial airplanes is between 33,000 and 42,000 feet, or between about six and nearly eight miles above sea level. Typically, aircraft fly around 35,000 or 36,000 feet in the air. To put that in perspective, the peak of Mount Everest measures 29,029 feet.

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Aircraft. In airliners, cabin altitude during flight is kept above sea level in order to reduce stress on the pressurized part of the fuselage; this stress is proportional to the difference in pressure inside and outside the cabin.

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