KLM's first director Albert Plesman used to say: Douglas builds good aircraft. He was right.
KLM Koninklijke Luchtvaart Maatschappij/Royal Dutch Airlines, for all I know, has been the only airline to use all Douglas Commercial (DC) aircraft models. Always excepting the DC-1 of which, befitting the name, only one has been built. Let us have a well-deserved look at them, in all their Glory:
Douglas Commercial 1
Douglas Commercial 2
Douglas Commercial 3
Douglas Commercial 4 Star of The High and the Mighty
Ernest K. Gann called the DC4 the best aircraft Douglas ever built— but then again, he never flew the DC5, the DC6, DC7, DC... see below.
Very impopular aircraft — I Kid You Not. Just like the contemporary Lockheed Electra an effort to keep up by changing to turboprops—to no avail. While the Electra (mainly labeled as the Orion) is still flying because of extremely high take-off angles, you as good as never see a DC-7 around anymore Boeing started to take over the game with the inferior, but way ahead of the race, jet 707.
I spotted a proud example of the breed in 1979 on Hato Airport, Curaçao. Beat-up and all, it looked like what it was—a sturdy old reliable.
really couldn't tell how many hours I've spent looking out at those decals
Douglas Commercial 9
Douglas Commercial 10
neither XX nor 12 ever flew
(McDonnell-Douglas MD-95) Boeing 717
McDonnell-Douglas Blended Wing Body
Xin Sax 40 - Boeing X48B
chronology of those numbers is a bit crazy mainly because they wanted to give the MD series designations like MD-100, but later went back to MD-11 anyway likewise, the MD-95, follow-up of the MD-80, might as well have been called MD9-5 (but it became the Boeing 717, of course)