Douglas DC-9

Douglas DC-9 , is an average apparatus of line/short mail developed by Douglas, twin-jet aircraft and mono corridor. It was redésigné MD-80 or MD-90 after the fusion of Mc Donnell and Douglas, and later B-717 when McDonnell Douglas was repurchased by Boeing.

Its first flight took place on February 25th, 1962.

May 23rd, 2006 saw the two last deliveries of B-717, after more than 41 years of production.

History

The Douglas company launched the study of the DC-9 in April 1963, in order to create a family of plane around the DC-8, and also to compete with Boeing 727. Compared with its B-727 direct competitor which must much of element in B-707, the DC-9 is an entirely new plane. It was motorized by two Pratt and Whitney JT8D and had an empennage in T. It entered to the service with Delta Airlines at the end of 1965. The initial version -10 was followed by many versions whose last was -50. After this version, the MD-80 taken the continuation (it was conceived as DC-9-80). Then version MD-90 was developed in 1990, the last version would have being the MD-95 which was renamed B-717 by Boeing, after fusion Mc Donnell Douglas and Boeing in 1997, and before the startup of the 1st MD-95.

The reliability of this apparatus made it possible to sell the DC-9/MD80/B-717 until the beginning of the year 2000. 2400 specimens were built, which makes it possible family DC-9/MD80/B-717 to be in the third place of the greatest numbers of civil aircrafts built, the Airbus A320 (3000 ex) holding the second place, but far behind the Boeing 737 (more than 6000 sold specimens) which holds the first place.

Military version

C-9 : C-9 is a version arranged with doors cargo liners.

C-9A Nightingale : especially arranged out of sanitary appliance by the US Air Force.

C-9B Skytrain II : used by the United States Navy and by the United States Marine Body for the transport of freight and/or personnel.

VC-9 : version of transport VIP uses by USAF.

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