The world’s two most popular commercial aircraft in production and the world’s most numerous commercial passenger jets in service today are the Airbus A320 family and the Boeing 737 family of aircraft. For years, the Boeing 737 has been the most produced commercial jet, however that is about to change. The Boeing 737’s production has been suppressed for the last six years, bringing forward the date that the A320 overtakes it as the most delivered commercial aircraft in history. Still, the Boeing 737 continues to be the world’s second most popular passenger jet with Boeing working to ramp up deliveries.