Longitude
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Joined: Sun Nov 25, 2007 3:38 pm

Cabin Pressure Altitude

Sat May 03, 2008 4:27 pm

Hello,

Can somebody tell me which cabin pressure altitude should be estabilished during a flight according to FAR? Is it different in Europe?

Thank you!
 
Tod
Posts: 1709
Joined: Sat Aug 28, 2004 6:51 am

RE: Cabin Pressure Altitude

Mon May 05, 2008 3:42 pm

 
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Jetlagged
Posts: 2562
Joined: Sun Jan 23, 2005 3:00 pm

RE: Cabin Pressure Altitude

Mon May 05, 2008 5:01 pm



Quoting Tod (Reply 1):
8,000 feet per 14CRF25.841

"Not more than 8,000 ft". It can be, and usually is, less than that.
The glass isn't half empty, or half full, it's twice as big as it needs to be.
 
Tod
Posts: 1709
Joined: Sat Aug 28, 2004 6:51 am

RE: Cabin Pressure Altitude

Mon May 05, 2008 5:05 pm



Quoting Jetlagged (Reply 2):
"Not more than 8,000 ft". It can be, and usually is, less than that.

My experience is that wide body international flights usually run in the 5600 - 6800 range where US domestic flights seem to average between 7000 - 8000.

Tod
 
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Jetlagged
Posts: 2562
Joined: Sun Jan 23, 2005 3:00 pm

RE: Cabin Pressure Altitude

Mon May 05, 2008 7:40 pm



Quoting Tod (Reply 3):
My experience is that wide body international flights usually run in the 5600 - 6800 range where US domestic flights seem to average between 7000 - 8000.

It mostly depends on the aircraft type and the cruise altitude. Typically aircraft of a given type cruise at the same cabin differential pressure. So the cabin altitude will vary according to cruise altitude assigned. If you know what cabin diff press the CPC sets you can work out what the cabin altitude will be.

On older aircraft where cruise altitude is entered manually a higher cruise altitude than actual can be entered if required.
The glass isn't half empty, or half full, it's twice as big as it needs to be.

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