MBA: Maximum operating altitude: 10,000 feet?

Discussion in 'MacBook Air' started by stevehp, Jan 17, 2008.

  1. macrumors 6502

    What's up with this?

    How does Apple expect us to use an MBA on an airplane?
  2. macrumors 68040


    Airplanes are pressurized to around sea-level, so it doesn't matter.
  3. Administrator/Editor


    Staff Member

    Airplanes are pressurized to ~8000 feet, so you'll be fine.
  4. macrumors 603


    Airplane cabins are pressurized...

    edit: too slow wit teh Spy™
  5. macrumors 65816


  6. macrumors 6502a


    Err... yeah... I thought the main group of people who were going to buy the MBA were people who fly a lot... :S This makes it useless for those kinda people doesn't it?
  7. macrumors P6

    IJ Reilly

    The cabin atmospheric pressure in an airliner is 8,000 feet.
  8. macrumors 68040




    EDIT: Interesting, I didn't know it was 8000 feet in an airplane. I guess it would take more work to keep it closer to sea-level pressure. Does that mean they have to use high-altitude baking directions? :p
  9. macrumors 6502a

    Read some other posts around you.
  10. macrumors 6502

    Oh, hahah...I feel like an idiot now!!!

    I guess I couldn't use it on Everest's peak.
  11. macrumors P6

    IJ Reilly

    So the question is, above 10,000 feet does the "Air" get thinner?
  12. macrumors 603


    It probably gets thicker, since there is slightly lower gravity...
  13. macrumors 68000


    every product they make (that im aware of) has a operating altitude of 10,000
  14. macrumors 6502a


    hey, you learn something new every day lol
  15. Administrator/Editor


    Staff Member

    Not necessarily more work, but the increased pressure differential (particularly at the highest altitudes) puts more stress on the airplane. The new carbon fiber planes are able to push this further: the 787 will be pressurized to 6,000 feet, while the A350 may go to 5,000, increasing passenger comfort.
  16. macrumors 6502


    The 80GB Samsung hard drive in the air is Rated to 3000 meters operating which is just under 10k feet so I bet you thats the primary reason for the restriction.
  17. macrumors 65816


    It also depends on where you are getting off the plane. I once was on a flight to Santa Cruz, Bolivia with a stop in La Paz. It was the first time I got winded after they opened the door just switching seats. For flights to places like that, I wouldn't want to go from 5 or 6,000 ft. to 11,000 ft. instantanously.
  18. macrumors 604


    If I remember correctly, the altitude restriction for devices that contain hard drives has to do with the aerodynamics of multikilo-RPM spinning platters functioning a little differently in thinner air. Since virtually no one (or at least a very, very small percentage of people) lives or works above 10K feet, that's what the hard drive designers design to. If they built all hard drives to work as high as, say, 30K feet, the design would have to be slightly different (to accommodate the greater variation in atmospheric pressure) and hard drives would probably be slightly larger and/or more expensive to build.

    I would imagine that the SSD-equipped MBA does not have this restriction... although I do know that some screen technologies (plasma, mostly) also have altitude restrictions because the gas-filled elements may behave differently under lower atmospheric pressure.
  19. macrumors member

    lol. i can't tell if you're joking, but the reason air marshal bullets make the whole airplane explode is the interior is pressurized.
  20. macrumors 6502a

    macbook air....oh the irony
  21. macrumors member

    ...and as an interesting side note: the nice bizjets (e.g., Gulfstream G5) fly higher (up to 51,000ft vs. the high 30s that airliners typically fly in) but maintain a lower cabin altitude (typically 6,000ft). That + lower noise + comfier seats/beds makes flying first class commercial feel like a painful way to fly.
  22. macrumors 65816


    Another cool plane will be the boeing dreamliner, apparently it will be pressurized to a be equivalent to a somewhat lower level.
  23. macrumors newbie

    I'm not sure if you're joking, :p but bullets won't make an airplane explode. This is a movie myth. Mythbusters actually did an episode where they debunked this.
  24. macrumors 65816


    And I can't tell if you are joking. Piercing an airplane window or skin with a bullet does not make the whole airplane explode. Very little happens actually except for loosing cabin pressure. Oh Hollywood, your entertainment is fun to watch, but so misleading!

    EDIT: LOL, great minds think alike... I was actually thinking of the exact same episode, but I typed too slow...
  25. macrumors 68000


    10,000 ft. is hardly high. Mammoth Mountain is 11,059 ft.

    So i've skiied higher than the maximum operating altitude. :p

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