• Five variants flying commercially: A320, carrying 150 passengers, is most common. A319 carries 124, and little-ordered A318 seats 107. A321 carries 185 in typical configuration. Updated A320neo model with new engines began flying from January
• Engines: Two for the A320 series, either CFM 56 model built by CFM International, a joint venture between General Electric Co. and Safran SA; or V2500 from International Aero Engines, a joint venture that includes United Technologies Corp.'s Pratt & Whitney. A320Neo currently flying only with Pratt & Whitney geared turbofan engines; A320Neos with Leap engines by CFM set to enter service later this year
• Built: Main assembly lines are in Toulouse, France, and Hamburg, Germany, with parts mainly produced in France, Germany, Spain and the U.K. Final assembly line in Tianjin, China, produces four planes a month for Chinese market while U.S. line in Mobile, Ala., just began producing A320Neos.
• Most remembered by public: US Airways A320 flown by Captain Chesley B. "Sully" Sullenberger made emergency landing on Hudson River in New York in January 2009 after multiple bird strikes knocked out both engines.