Boeing
Boeing 737-400
The Boeing 737‑400 is a stretched variant of the original 737‑300, introduced by Boeing in 1988 as part of the Classic series. Developed to meet airlines’ demand for higher capacity without sacrificing the type‑rating commonality of the 737 family, the 400 seats 146‑189 passengers in a single‑aisle cabin and offers a range of roughly 2,300 nautical miles. Powered by two CFM56‑3 turbofan engines, it delivers thrust between 20,000 and 22,000 pounds, providing reliable performance on short‑ and medium‑haul routes while maintaining lower fuel burn than its predecessors. The aircraft incorporates reinforced wings, a larger horizontal stabilizer, and upgraded avionics that include a modern flight‑deck display and enhanced autopilot functions. Its common cockpit layout allowed pilots trained on earlier 737 models to transition with minimal additional training, a key factor in its commercial success. Over 400 units were produced before production ended in 2000, and the 737‑400 served as a workhorse for carriers worldwide, supporting regional growth and enabling airlines to expand slot‑constrained operations. Even after retirement, many 737‑400s continue in cargo and charter service, underscoring the type’s lasting impact on aviation.
Classification
Dimensions
- Length
- 36.45 metre