The Airbus A320 family of short- to medium-range commercial passenger airliners are manufactured by Airbus. Family members include the A318, A319, A320, and A321, as well as the ACJ business jet. First delivered in 1988, the A320 pioneered the use of digital fly-by-wire flight control systems in a commercial aircraft. With more than 3,500 aircraft of the A320 family built, it is the second best-selling jet airliner family of all time after the family's primary competition, the Boeing 737. Source: WIKIPEDIA
