Date: 19 Feb 97 02:46:23
From: Ken <kgm0001@jove.acs.unt.edu>
Organization: University of North Texas
References: 1
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Merlin Dorfman wrote:
>
> A couple of weeks ago in this newsgroup there was a thread about the
> number of (early) DC-10s in service as compared to few if any L-1011s.
> A similar comment might be made about 707s and Dc-8s. It has been
> a long time since I've seen a 707 (707-airframe TACAMOs and Joint STARS,
> yes, and a double-take at an A340 at DFW last year, but not an airline
> 707). But I frequently see DC-8s, in cargo service with new engines.
> Is there a reason that the DC-8 airframes are still in service
> up to 30 years later while the 707s are not?
If you go to Africa and the Middle East, you will find a number of B-707s
still in service. The DC-8 was stretched which makes it more economical
to continue flying than the 707; also the DC-8 was designed to have a
longer fatigue-life (100,000 hours) than the 707 (60,000 hours).
Ken Madden
