Older Aircraft

Date:         11 Sep 97 03:35:29 
From:         Joel Francis Campbell <jcby+@andrew.cmu.edu>
Organization: Freshman, MCS Undeclared, Carnegie Mellon, Pittsburgh, PA
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Followups:    1 2
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I was wondering if anyone had statistics on the oldest aircraft
currently being flown by a U.S. carrier in regular service. I have flown
what appeared to be a 25-year-old 747-100 from Seoul to Manila that had
a plaque in the main cabin dating the aircraft to 1972. I believe the
plane was christened the William Patterson (UA). I was thinking that
this couldn't possibly be the oldest plane in UA's fleet (if they have a
25-year-old plane up there, why not a 30-year-old?)

How many cylces do most carriers (at least American ones) put their
planes through before they scrap them? Do international airlines have
different standards? Does any American carrier still fly planes like the
Tokyo Rose mentioned in a previous post? (a DC-8-82 delivered in 1968).
Also, do aging aircraft "feel" different to pilots when they fly them?
Do airline pilots recognize the personalities of particular aircraft
they've flown before?

I know it's a lot of questions, but I've been looking for the answers
for ages...

Entirely grateful in advance, I must offer a pre-thank you!