Boeing 737-900ER

The Boeing 737‑900ER (Extended Range) is the longest variant of the 737 Next Generation family, introduced in 2006 and entering service with Alaska Airlines in 2007. Developed to compete with Airbus’s A321, the 737‑900ER adds extra fuel capacity, redesigned winglets, and a longer fuselage that accommodates up to 180 passengers in a single‑class layout or 162 in a two‑class configuration. Its Maximum Take‑off Weight was increased to 174,200 lb, and the aircraft incorporates the same CFM56‑7B27 engines that power earlier NG models, delivering improved fuel efficiency and lower emissions. The extended range capability—up to 3,200 nautical miles—allows airlines to serve transcontinental and thin‑mid‑range routes previously reserved for larger wide‑body jets. Over 500 units have been delivered, many of them converted to freighter versions that support cargo operations worldwide. The 737‑900ER’s blend of capacity, range, and commonality with older 737s has made it a pivotal bridge between narrow‑body and larger aircraft, sustaining the 737’s reputation as the world’s most prolific commercial airliner and shaping airline fleet strategies for over a decade. Its reliability and operational flexibility continue to attract new operators, ensuring the model's relevance well into the 2030s.

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