Re: Service Ceiling (was Re: Passenger cabin pressurization)

Date:         24 Oct 97 04:33:14 
From:         "Dave Alden" <>
Organization: Legal Recourse
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Edward Hahn wrote in message ...
>In article <airliners.1997.2427@ohare.Chicago.COM>,
> ... the Service Ceiling is defined as the
>altitude at which the airline can no longer climb at 500 fpm.  Absolute
>Ceiling is defined as the altitude at which the aircraft can no longer
>at all.

I seem to recall service celing as being the altitude where climb rate
degrades to 100 fpm.  Are there two certification specs -- one for turbines
and the other for pistons?

-- Dave Alden