From kls Mon Jan 27 02:45:55 1997 Newsgroups: sci.aeronautics.airliners Path: bounce-back Date: 27 Jan 97 02:45:55 From: "Richard Isakson" Subject: Re: DC-8s in service; no 707s? References: Message-ID: Approved: kls@ohare.Chicago.COM Sender: kls@ohare.Chicago.COM Organization: WhidbeyNet Merlin Dorfman wrote in article ... > 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? > It's a question of engine noise. The DC-8s that you see are the re-engined/stretched versions. I think it was the -60 series. Boeing made the strategic decision not to re-engine/stretch the 707 (though they looked very hard at it). They did re-engine the military versions but choose not to certify the changes. Rich