description Boeing 737-400 Overview
The Boeing 737-400 is a narrow-body airliner introduced in 1988 as a stretched variant of the 737 Classic series. Developed to compete with the McDonnell Douglas MD-80, the aircraft was lengthened to increase passenger capacity to roughly 168 to 188 travelers in a typical layout. It was designed primarily for short- to medium-haul commercial routes requiring higher density seating. The model became a reliable workhorse for many global airlines before being succeeded by the Next Generation 737 family.
help Boeing 737-400 FAQ
How much longer is the Boeing 737-400 compared to the 737-300?
The Boeing 737-400 is stretched by about ten feet compared to the 737-300, allowing it to carry significantly more passengers. It was introduced in 1988 to compete directly with other 150-seat class airliners like the McDonnell Douglas MD-80.
What engines does the Boeing 737-400 use?
Like other 737 Classic models, the 737-400 is equipped with CFM International CFM56-3 turbofan engines. These engines provided much better fuel efficiency compared to the Pratt & Whitney engines on the original 737-100 and -200 models.
When did the Boeing 737-400 enter service?
The aircraft conducted its maiden flight and officially entered commercial service in 1988. It was the largest variant of the 737 Classic generation before the Next Generation (NG) series was developed.
Does the Boeing 737-400 have any cargo or freighter variants?
Yes, many older passenger 737-400s were later converted into cargo freighters, often designated as the 737-400F or SF (Special Freighter). These converted planes remain popular with cargo airlines around the world.
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