McDonnell Douglas DC-X-200

The McDonnell Douglas DC-X-200 was a proposed twin-engine airliner that McDonnell Douglas studied in the late 1970s as a smaller derivative of its DC-10. It kept the DC-10 fuselage cross-section but shortened it, cutting capacity from 270 to 220 passengers in a three-class layout, and it dropped the central tail-mounted engine in favour of two General Electric CF6 engines under a new, higher aspect ratio wing with a supercritical airfoil. The company worked with NASA on the aerodynamic design and wind tunnel testing was carried out, and the NASA report records a length of about 43 metres, a wingspan of about 47 metres and a maximum take-off weight near 132 tonnes. It was aimed at the market later served by the Airbus A310 and the Boeing 767, but low commercial prospects led McDonnell Douglas to drop it in the summer of 1978.