Editing Boeing 717 (section)

=== Background ===
[[Douglas Aircraft Company|Douglas Aircraft]] launched the [[McDonnell Douglas DC-9|DC-9]], a short-[[Range (aircraft)|range]] companion to its larger four-engine [[Douglas DC-8|DC-8]], in 1963.<ref name="G_Endres">Endres, Gunter. ''McDonnell Douglas DC-9/MD-80 & MD-90''. London: Ian Allan, 1991. {{ISBN|0-7110-1958-4}}.</ref> The DC-9 was an all-new design, using two rear fuselage-mounted [[Pratt & Whitney JT8D]] [[turbofan]] engines; a small, efficient wing; and a [[T-tail]].<ref name="douglas_jetliners">Norris, Guy and Mark Wagner. "DC-9: Twinjet Workhorse". ''Douglas Jetliners''. MBI Publishing, 1999. {{ISBN|0-7603-0676-1}}.</ref> The DC-9's [[maiden flight]] was in 1965 and entered airline service later that year.<ref name="aijun80 p293">''Air International'' June 1980, p. 293.</ref> When production ended in 1982, a total of 976 DC-9s had been produced.<ref name="douglas_jetliners" />

The [[McDonnell Douglas MD-80]] series, the second generation of the DC-9, began airline service in 1980. It was a lengthened [[DC-9-50]] with a higher [[maximum take-off weight]] (MTOW) and higher fuel capacity, as well as next-generation Pratt and Whitney JT8D-200 series engines and an improved wing design.<ref>{{Cite web |title=Boeing: MD-80 Background |url=http://www1.boeing.com/commercial/md-80-90/index.html |url-status=dead |archive-url=https://web.archive.org/web/19990302070457/http://www1.boeing.com/commercial/md-80-90/index.html |archive-date=March 2, 1999 |access-date=July 16, 2015 |publisher=Boeing}}</ref> 1,191 MD-80s were delivered from 1980 to 1999.<ref name="orders-deliveries">{{Cite web |title=Boeing: Commercial&nbsp;— Orders & Deliveries |url=http://www.boeing.com/commercial/#/orders-deliveries |access-date=July 16, 2015}}</ref>

The [[McDonnell Douglas MD-90|MD-90]] was developed from the MD-80 series.<ref name="AI p90">Swanborough 1993, p.90.</ref> It was launched in 1989 and first flew in 1993.<ref>{{Cite web |title=Boeing: Commercial Airplanes&nbsp;— MD-90 Background |url=http://www.boeing.com/commercial/md-80-90/md90.html |archive-url=https://web.archive.org/web/20130216043002/http://www.boeing.com/commercial/md-80-90/md90.html |archive-date=February 16, 2013 |access-date=July 16, 2015}}</ref> The MD-90 was longer and featured a [[glass cockpit]] (electronic instrumentation) and more powerful, quieter, fuel-efficient [[IAE V2500|IAE V2525-D5]] engines, with the option of upgrading to an [[IAE V2500|IAE V2528]] engine.<ref>{{Cite web |title=Boeing: Commercial Airplanes&nbsp;— MD-90 Technical Characteristics |url=http://www.boeing.com/commercial/md-90/product.html |url-status=dead |archive-url=https://web.archive.org/web/20130308021328/http://www.boeing.com/commercial/md-90/product.html |archive-date=March 8, 2013 |access-date=July 16, 2015}}</ref> A total of 116 MD-90 airliners were delivered.<ref name="orders-deliveries" />