Re: Passenger cabin pressurization

Date:         17 Sep 97 02:49:16 
From:         lstone_no_spam@wwa.com (Larry Stone)
References:   1 2 3
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In article <airliners.1997.2232@ohare.Chicago.COM>,
"[non-spam]jfmezei"@videotron.ca wrote:

>OR: is the 8.5psi related to cabin pressure versus outdoor pressure at
>cruise?

Yes.

Some numbers I've come up with thanks to owning an altimeter watch (all
planes are UA's):

        727    737    747    757    767   777    D10    A320
FL250          3,700
FL270                                            3,100
FL290          5,600         4,100
FL330          6,700         5,100                      6,500
FL350   5,700  7,300  5,200
FL360*                5,600
FL370          8,000         6,400        6,500         7,700
FL390                 6,500  7,000
FL410                 7,100  7,600  7,900
FL430                               8,100

* What were they doing at FL360, you ask? While not a legal altitude to
assign within the continental U.S., it is a legal altitude for one of the
Hawaii routes.

--
-- Larry Stone --- lstone@wwa.com
   http://www.wwa.com/~lstone/
   Belmont, CA, USA
   My opinions, not United's.