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PracticalMac

macrumors 68030
Original poster
Jan 22, 2009
2,857
5,246
Houston, TX
Testing by Jeppesen has cleared the iPad 4 and mini for use up to 51,000ft

This is NOT 51,000 ft inside a pressurized airplane, this is
SUDDEN DECOMPRESSION from atmospheric pressures of 0 to 8000 ft (simulated cabin pressure) to 51,000ft in less then 1/2 a second!! :eek: :eek:
Any air inside the iPad's will be violently expelled when it suddenly has about 1/7 of the outside pressure on it, and suffer instant condensation inside and outside the device.
Finally the ingress of more humid air is forced in as the pressure returns to sea level.

Arguably this test is much more through and demanding then drop tests and dunk tests.

Apple quotes for its alt as:
Maximum operating altitude: 10,000 feet (3000 m)

More details on earlier tests (iPad 2), and a report of said test report.

:apple:
 
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Not that worried about it. The chance of actually encountering a sudden decompression is near zero.

They have to worry about it. On some airplanes, the iPad is replacing some paper documents like checklists and plane manuals. They want pilots to have access to those, especially in the event of a decompression.
 
Cool to know, although if it did happen I think the last thing on my mind would be my ipad!

They have to worry about it. On some airplanes, the iPad is replacing some paper documents like checklists and plane manuals. They want pilots to have access to those, especially in the event of a decompression.

Ok, unless I was the pilot then lol
 
I can see where this might be useful...
 

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Yeah, I would think sudden decompression at 51,000 feet would move the iPad down your "List of Worries" pretty far. Things on that list ahead of "is my iPad working" are, for example: "is my blood boiling yet?"
 
They have to worry about it. On some airplanes, the iPad is replacing some paper documents like checklists and plane manuals. They want pilots to have access to those, especially in the event of a decompression.

That's actually a good point. Just not something I have to worry about!
 
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