Re: Why aren't air cabins pressurised to 1 atmosphere?

Date:         26 Apr 98 03:44:16 
From:         "Yannick Fournier" <>
Organization: EIG's student
References:   1
Next article
View raw article
  or MIME structure

Olly Morgan wrote in message ...
>I've a vague recollection of reading that aircraft cabins are
>pressurised to 0.5 atmosphere.  Err, why is this?
>Presumably it would be simple enough to hold it at 1 atmosphere in which
>case all this ear ache stuff at takeoff/landing would be eliminated?

Don't forget that the a/c must replace the air ! Some companies set the
"realtive altitude pressure" at higher than 8'000 ft only to economize fuel
(and money) !