The Boeing 737
is a short- to medium-range twinjet narrow-body airliner
developed and manufactured by Boeing Commercial Airplanes
in the United States. Originally developed as a shorter, lower-cost twin-engine airliner derived from the 707
, the 737 has developed into a family of ten passenger models with capacities from 85 to 215 passengers. The 737 is Boeing's only narrow-body airliner in production, with the 737 Next Generation
(-700, -800, and -900ER) and the re-engined and redesigned 737 MAX
variants currently being built.