Re: DC-9 hole

Date:         23 Apr 97 02:58:14 
From:         "Svein-Harald Jensen" <shjensen@online.no>
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D Snow <dougie@mama.indstate.edu> wrote in article
<airliners.1997.919@ohare.Chicago.COM>...
> I think the hole is an air inlet for the rudder load limiter.  I know that
> is not the official DC9 terminology for the device, but that is what the
> hole serves, I think.

The lower hole (the biggest) is an air inlet for the airco heat exchanger.
The tube midway up on the fin is for the rudder limiter and the flight
recorder.