Boeing 737_parts

The 737 series is the best-selling jet airliner in the history of aviation. The 737 has been continuously manufactured by Boeing since 1967 with 8,471 aircraft delivered and 4,244 orders yet to be fulfilled as of March 2015. 737 assembly is centered at the Boeing Renton Factory in Renton, Washington. Many 737s serve markets previously filled by 707, 727, 757, DC-9, and MD-80/MD-90 airliners, and the aircraft currently competes primarily with the Airbus A320 family. As of 2006 there were 1,250 Boeing 737s airborne at any given time on average, with two departing or landing somewhere every five seconds.