Editing Airbus A321 (section)

==Design==
[[File:Airbus A321-..., Lufthansa AN0620267.jpg|thumb|The A321 has double-slotted [[Flap (aircraft)|flap]]s.]]

The Airbus A321 is a narrow-body (single-aisle) aircraft with a retractable tricycle [[landing gear]], powered by two wing pylon-mounted turbofan engines. It is a low-wing [[cantilever]] [[monoplane]] with a conventional [[Empennage|tail unit]] having a single [[vertical stabilizer]] and [[rudder]]. Changes from the A320 include a fuselage stretch and some modifications to the wing. The fuselage was lengthened by a {{cvt|4.27|m|ftin|adj=on}} plug ahead of the wing and a {{cvt|2.67|m|ftin|adj=on}} plug behind it, making the A321 {{Convert|6.94|m|ftin|abbr=on}} longer than the A320.<ref name="A321 specifications2" /><ref name="A320 specifications">{{cite web|url=http://www.airbus.com/aircraftfamilies/passengeraircraft/a320family/a320/specifications/|title=Specifications Airbus A320|work=Airbus|access-date=13 February 2012|archive-date=24 January 2012|archive-url=https://web.archive.org/web/20120124123133/http://www.airbus.com/aircraftfamilies/passengeraircraft/a320family/a320/specifications/|url-status=live}}</ref><ref name="N&W p.50-53" /><ref name="Gunston-213–215">{{Cite book|last=Gunston|first=Bill|author-link=Bill Gunston|title=Airbus: The Complete Story|year=2009|location=Sparkford, Yeovil, Somerset, UK |publisher=Haynes Publishing|isbn=978-1-84425-585-6|pages=213–215}}</ref> The length increase required the overwing window exits of the A320 to be converted into door exits and repositioned in front of and behind the wings.<ref name="Eden-25">{{cite book|editor-last=Eden|editor-first=Paul E. |title=Civil Aircraft Today|publisher=Amber Books|year= 2008|location=London|isbn=978-1-905704-86-6|page=25}}</ref> To maintain performance, [[Flap (aircraft)|double-slotted flaps]] and minor [[trailing edge]] modifications were included,<ref name="N&W p.50-53"/> increasing the wing area from {{cvt|124|m2}} to {{cvt|128|m2}}.<ref name="A321 described">{{cite web|url=http://www.flightglobal.com/pdfarchive/view/1993/1993%20-%200507.html|title=A321: Taking on the 757|author1=Moxon|author2=Julian|date=17 March 1993|work=Flight International|access-date=25 February 2011|archive-date=22 June 2012|archive-url=https://web.archive.org/web/20120622030100/http://www.flightglobal.com/pdfarchive/view/1993/1993%20-%200507.html|url-status=live}}</ref> The centre fuselage and [[Landing gear|undercarriage]] were reinforced to accommodate a {{cvt|9,600|kg|sigfig=3}} increase in maximum takeoff weight, taking it to {{cvt|83,000|kg|sigfig=3}}.<ref name="N&W p.50-53" />