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stevehp
Jan 17, 2008, 01:44 PM
What's up with this?

How does Apple expect us to use an MBA on an airplane?



killmoms
Jan 17, 2008, 01:45 PM
Airplanes are pressurized to around sea-level, so it doesn't matter.

WildCowboy
Jan 17, 2008, 01:45 PM
Airplanes are pressurized to ~8000 feet, so you'll be fine.

gauchogolfer
Jan 17, 2008, 01:45 PM
What's up with this?

How does Apple expect us to use an MBA on an airplane?

Airplane cabins are pressurized...

edit: too slow wit teh Spy™

adrianblaine
Jan 17, 2008, 01:47 PM
It's called cabin pressure.

http://en.wikipedia.org/wiki/Cabin_pressure

You don't think we'd be flying at 30,000 ft. and be ok do you? People die at those altitudes. :eek:

Ryox
Jan 17, 2008, 01:47 PM
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?

IJ Reilly
Jan 17, 2008, 01:47 PM
The cabin atmospheric pressure in an airliner is 8,000 feet.

killmoms
Jan 17, 2008, 01:47 PM
WELL GUYS, I'M GLAD WE WERE ALL ON TOP OF THAT ONE. GOOD WORK. :D

<3 spy.macrumors.com

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

TimJim
Jan 17, 2008, 01:48 PM
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?

Read some other posts around you.

stevehp
Jan 17, 2008, 01:48 PM
Airplanes are pressurized to around sea-level, so it doesn't matter.

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

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

IJ Reilly
Jan 17, 2008, 01:49 PM
So the question is, above 10,000 feet does the "Air" get thinner?

gauchogolfer
Jan 17, 2008, 01:49 PM
So the question is, above 10,000 feet does the "Air" get thinner?

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

waterskier2007
Jan 17, 2008, 01:51 PM
every product they make (that im aware of) has a operating altitude of 10,000

Ryox
Jan 17, 2008, 01:51 PM
hey, you learn something new every day lol

WildCowboy
Jan 17, 2008, 01:54 PM
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.

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.

AirmanPika
Jan 17, 2008, 03:03 PM
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.

adrianblaine
Jan 17, 2008, 03:30 PM
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.

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.

clayj
Jan 17, 2008, 03:31 PM
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.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.

///alpinepower
Jan 17, 2008, 05:22 PM
What's up with this?

How does Apple expect us to use an MBA on an airplane?

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.

gothamm
Jan 17, 2008, 05:40 PM
macbook air....oh the irony

JasonBourne9
Jan 17, 2008, 06:19 PM
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.

...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.

EvryDayImShufln
Jan 17, 2008, 06:25 PM
Another cool plane will be the boeing dreamliner, apparently it will be pressurized to a be equivalent to a somewhat lower level.

88MVP
Jan 17, 2008, 06:36 PM
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.

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.

adrianblaine
Jan 17, 2008, 06:38 PM
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.

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...

e12a
Jan 17, 2008, 06:48 PM
10,000 ft. is hardly high. Mammoth Mountain is 11,059 ft.

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

tdhurst
Jan 17, 2008, 06:55 PM
What's up with this?

How does Apple expect us to use an MBA on an airplane?

Really? Are you really asking this question?

Check out the MB and MBP tech specs, too.

Look up the term "pressurization."

Karpfish
Jan 17, 2008, 06:58 PM
Even if Apple's states maximum operating altitude is 10,000 ft, they do work above that. I know for a fact that the MBP and iPod Classic work well above that, at the top of Aspen Mountain which is 11,212 ft above sea level.

GimmeSlack12
Jan 17, 2008, 07:01 PM
It probably gets thicker, since there is slightly lower gravity...

You're joking right? It gets thinner, or rather the density is lower the higher you go. Think of the ocean, at the surface the sea pressure isn't as high as deep down underwater where your lungs would be crushed.

EDIT: and is this yet another thread denouncing the MBA. Wow, just wow.
EDIT2: Might have taken this one out of context.

adrianblaine
Jan 17, 2008, 07:05 PM
the line between truth and sarcasm is extremely blurred in this thread :)

Catch
Jan 17, 2008, 07:07 PM
You're joking right? It gets thinner, or rather the density is lower the higher you go. Think of the ocean, at the surface the sea pressure isn't as high as deep down underwater where your lungs would be crushed.

EDIT: and is this yet another thread denouncing the MBA. Wow, just wow.

I think the guy posting the quoted text was referring to the MBA getting thicker as opposed to thinner and not the air.

I also think the original poster of this thread really really wish he had not asked that question by now! :eek::p:):D

Regards,

C

GimmeSlack12
Jan 17, 2008, 07:13 PM
I think the guy posting the quoted text was referring to the MBA getting thicker as opposed to thinner and not the air.

Looking back at it now. I think you're right.
I just can't pass up an opportunity to be a knowitall.

fatherratgmail
Feb 2, 2009, 08:37 AM
I just got off the phone with Apple Technical Support upper tier. They have tested the MacBook Air with a solid state drive to altitudes up to 14,800 feet. They said the only issue was the usual hard drive's "moving parts." That makes sense, since the unit can "store" at 15K and "ship" at twice that altitude.

I specifically asked about the display, and they said there were no issues.::apple::D

pellets007
Feb 2, 2009, 11:05 AM
I just got off the phone with Apple Technical Support upper tier. They have tested the MacBook Air with a solid state drive to altitudes up to 14,800 feet. They said the only issue was the usual hard drive's "moving parts." That makes sense, since the unit can "store" at 15K and "ship" at twice that altitude.

I specifically asked about the display, and they said there were no issues.::apple::D
I had no idea they actually tested it. You know how fun that would be?
Climbing up a mountain until the Air explodes (well, not explodes...).
:D

plinden
Feb 2, 2009, 11:27 AM
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.

But the flight attendants, and anyone else not strapped in, will be sucked out of the little hole. And then they'll explode.

Yes, I'm joking.

Consultant
Feb 2, 2009, 11:48 AM
WELL GUYS, I'M GLAD WE WERE ALL ON TOP OF THAT ONE. GOOD WORK. :D

<3 spy.macrumors.com

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

Airline food actually contain more salt, because at that pressure you loose some sensitivity in taste.

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.

But the flight attendants, and anyone else not strapped in, will be sucked out of the little hole. And then they'll explode.

Yes, I'm joking.


That's dramatized movie special effects. Watch Mythbuster for what ACTUALLY happens.
2004 episode: Explosive Decompression