The Airbus A320 family is a series of narrow-body airliners developed and produced by Airbus. The A320 was launched in March 1984, first flew on 22 February 1987, and was introduced in April 1988 by Air France. The first member of the family was followed by the longer A321 (first delivered in January 1994), the shorter A319 (April 1996), and the even shorter A318 (July 2003). 

The Boeing 737 Classic is the second generation of the Boeing 737 jetliner, comprising the -300, -400, and -500 series. They are short- to medium-range, narrow-body jet airliners. P

The first model of the Classic series, the 737–300, entered service in 1984. It was followed by a stretched model, the 737-400, which entered service in 1988, followed by the shortened 737-500, the smallest variant in the classic series, in 1990.