From: firstname.lastname@example.org Organization: INFOnet - Iowa Network Services, Inc. Date: 13 Jan 94 05:07:30 PST References: 1
View raw article or MIME structure
In article <airliners.1994.868@ohare.Chicago.COM>, SCOTT2031@delphi.com writes: >I picked up a copy of the Jan/Feb 94 Airliners today. On page 12 there >is a picture of ANA 747-481D JA8963. It caught my eye at first because of its >"whale" paint scheme. But then I noticed that it had no winglets. > >I thought maybe it was a 747-300 with a typo in the caption, but a closer >examination of the photo reveals 747-400 type fairings and the boeing >747-400 logo near the rear door. Are the winglets optional? Is this a >short range variant of the -400? Yes. Yes. The "Nippon Clip-On" is what you must be referring to. Since the Airframe life is generally N takeoff-landing cycles and M hours of flying, ANA (and possibly others) flies without the wingtips on short flights - and when they get used up a large number of cycles, they put the wingtips on and fly them on longer routes to get the most use out of the airplane.