The 737 MAX is the fourth generation of the original 1960s 737 narrow-body airplanes developed by US-based Aerospace conglomerate Boeing.

The MAX Family was launched in 2011 as a response to Airbus re-engined A320NEO. The combination of the new CFM Engine LEAP56, improved aerodynamics, and advanced scimitar winglets was able to cut the fuel consumption of the new family models by 14% over predecessors. The first MAX 8 test aircraft took to the sky on January 29, 2016, prior to entering service with Indonesia based launch customer Malindo Air in 2017. The MAX 9 entry in service followed in 2018. The MAX 7 will be the last model to enter service.

Boeing Business Jet division propose the BBJ MAX 7, MAX 8 and MAX 9 business variants. As the 737NG derivative BBJ, All MAX models will receive post-production auxiliary fuel tanks installation in Georgetown, Delaware by ALOFT AeroArchitects (formerly PATS Aircraft Systems).