Re: DC-8s in service; no 707s?

Date:         27 Jan 97 02:45:56 
From: (Kim Hackett)
Organization: Your Organization
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>     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.

>     Is there a reason that the DC-8 airframes are still in service
>up to 30 years later while the 707s are not?

I think it is because the DC-8s were reengined with CFM-56 enginees.
The 707 was never reengined with CFM-56s, like the KC-135s were to
make the KC-135R.  If I remember correctly, Boeing was looking into
reengining 707s in the late 70s or early 80s here in Wichita about the
time they were doing the KC-135R program, but decided not to because
it would reduce their new aircraft sales.