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The MD-81 (originally known as the DC-9 Super 81 or DC-9-81) was the first production model of the MD-80, and apart from the MD-87, the differences between the various long-body MD-80 variants are relatively minor.
The DC-9 family was produced between 1965 and 2006 with a total delivery of 2441 units: 976 DC-9s, 1191 MD-80s, 116 MD-90s, and 155 Boeing 717s. As of August 2022, 250 aircraft remain in service: 31 DC-9s (freighter), 116 MD-80s (mainly freighter), and 103 Boeing 717s (passenger), while the MD-90 was retired without freighter conversion.
The MD-100 was proposed in two versions: the Series 10, having an airframe shorter by 6 ft 6 in (1.98 m) compared to the DC-10 and seating up to 270 passengers in a mixed-class configuration; and the Series 20, incorporating a fuselage stretch of 20 ft 6 in (6.25 m) over the DC-10 and able to seat up to 333 passengers in the same kind of ...
The MD-10 is an upgrade to add a glass cockpit to the DC-10 with the re-designation to MD-10. The upgrade included an Advanced Common Flightdeck similar to what was used on the MD-11 and was launched in September 1996. [49] However, the actual avionics are shared with the Boeing 717, using the Honeywell VIA liquid-crystal-displays.
During the early 1980s, as production of the DC-9 family moved away from the smaller Series 30 towards the larger Super 80 (later redesignated MD-80) variants, McDonnell Douglas proposed a smaller version of the DC-9 to fill the gap left by the DC-9-30. Dubbed the DC-9-90, it was revealed in February 1983 and was to be some 25 ft 4 in (7.72 m ...
The DC-7 was followed by the DC-7B with slightly more power and optional fuel tanks over the wing in the rear of the engine nacelles (selected by Pan Am and South African Airways), each carrying 220 US gallons (183 imp gal; 833 L). South African Airways used this variant to fly Johannesburg to London with one stop.
MD vs. DO: How they’re similar. Despite the fact that they are different degrees from different types of schools, the criteria to apply and be accepted into each program are virtually the same.
The Douglas DC-6 is a piston-powered airliner and cargo aircraft built by the Douglas Aircraft Company from 1946 to 1958. Originally intended as a military transport near the end of World War II, Douglas reworked it after the war to compete with the Lockheed Constellation in the long-range commercial transport market.