Making the Mad Dog

The Douglas DC-9 stole a march on the BAC One-Eleven and Boeing 737, but McDonnell Douglas had another trick up its sleeve, as Stephen Skinner discovers in the second half of our two-part feature

American Airlines boasted a fleet of 362 MD-80s, following the Dallas/Fort Worth-based carrier's merger with Trans World Airlines. This accounted for almost a third of the airliner's entire production run

Having launched the DC-9-50 into the sky in December 1974, to compete with Boeing’s 130-seat 737-200 (as detailed in ‘Stretching Out’, Airliner World, October 2021 issue), McDonnell Douglas engineers knew that an even larger version of the rival jet was on the drawing board. To counter or even pre-empt this, California’s commercial craft creators set to work on going one better – even though transforming the original DC-9-10 into the 139-seat -50 had already involved a greater stretch in size than had been seen in any other airliner. Various configurations were examined, and a joint development of the Dassault Mercure was even considered. Though, this was a blind alley for McDonnell Douglas – far better, and far cheaper, to further develop the DC-9 offering commonality to existing fleet operators, rather than the trials and tribulations of a new type.

Become a Premium Member to Read More

This is a premium article and requires an active Key.Aero subscription to view.

I’m an existing member, sign me in!

I don’t have a subscription…

Enjoy the following subscriber only benefits:

  • Unlimited access to all KeyAero content
  • Exclusive in-depth articles and analysis, videos, quizzes added daily
  • A fully searchable archive – boasting hundreds of thousands of pieces of quality aviation content
  • Access to read all our leading aviation magazines online - meaning you can enjoy the likes of FlyPast, Aeroplane Monthly, AirForces Monthly, Combat Aircraft, Aviation News, Airports of the World, PC Pilot and Airliner World - as soon as they leave the editor’s desk.
  • Access on any device- anywhere, anytime
  • Choose from our offers below