Search results
Results from the WOW.Com Content Network
The pressure differential varies between aircraft types, typical values are between 540 hPa (7.8 psi) and 650 hPa (9.4 psi). [35] At 39,000 ft (11,887 m), the cabin pressure would be automatically maintained at about 6,900 ft (2,100 m), (450 ft (140 m) lower than Mexico City), which is about 790 hPa (11.5 psi) of atmosphere pressure. [34]
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.
The power for the air conditioning pack comes from the reduction of the pressure of the incoming bleed air relative to that of the cooled air exiting the system; typical differentials are from about 30 psi or 210 kPa to about 11 psi or 76 kPa. [1] The next step is to dehumidify the 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 ...
Explosive decompression occurs typically in less than 0.1 to 0.5 seconds, a change in cabin pressure faster than the lungs can decompress. [1] [3] Normally, the time required to release air from the lungs without restrictions, such as masks, is 0.2 seconds. [4]
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
NEW YORK (Reuters) -Robert F. Kennedy Jr, the former independent presidential candidate, is reviewing candidate resumes for the top jobs at the U.S. government's health agencies in Donald Trump's ...
The main cockpit windows were made from 5 ⁄ 8 in (16 mm) thick safety glass, while the rest of the windows were made of Plexiglass or Lucite sealed into rubber channels [34] A large ram-air scoop on the cabin roof was provided to supply cooling air while at lower altitudes, and was shut off when the cabin was pressurized at higher altitudes. [27]