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mtneer

macrumors 68040
Sep 15, 2012
3,179
2,714
Arent some airlines now issuing their flight maps on iPad's? I can't imagine the FAA would approve iPad's for such usage, if the cabin depressurized and the pilots lost their checklists and manuals on account of the iPad.
 

fedup flyer

macrumors regular
Jan 18, 2008
241
53
I am a private pilot. Flying my unpressurized Cessna I never had to fly over 10000 feet but my gps always gave me a fix up to at least 7000 feet. iPad GPS is not a real gps. Real gps use satellite signal to triangulate their position. iPad GPS used cell towers to triangulate their positions. To the maximum height is more a maximum distance from ground cell towers which at 10000 feet is roughly 3 kilometers.

The GPS module in the Ipad is a "real" GPS, albiet it has a small antenna.
It uses the cell phone towers to help get a triangulation faster and that is known a assisted GPS (A-GPS).
I have had my Ipad in use at 41,000 and it was able to give me a usable signal but I had to go back in the main cabin and sit by a window to make it work. I dont think I was able to get below 100m of accuracy with just the internal GPS.
Forward windows on airliners (L1,L2 and sometimes L3) are too thick for descent signal penetration even with an external antenna.
 
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penguintri

macrumors member
Jun 30, 2009
65
11
UK
I'm climbing Kilimanjaro next week and assumed my iPad mini would be ok to take with me. Will it be ok taking it to 19,000 ft?
 
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