Boeing 737 Next Generation

Boeing 737 Next Generation
Name	Boeing 737 Next Generation
Caption	A family of Boeing 737 Next Generation aircraft
Type	Narrow-body airliner
Manufacturer	Boeing Commercial Airplanes
First flight	1997
Introduced	1998
Status	In service

Boeing 737 Next Generation is a family of narrow-body commercial airliners developed and produced by Boeing Commercial Airplanes as the third generation of the Boeing 737 series. Designed to succeed earlier Boeing 737 Classic models, it served as a bridge to later developments such as the Boeing 737 MAX while competing with the Airbus A320 family, Bombardier CSeries, and operators including Southwest Airlines, Ryanair, and American Airlines. The program influenced airline fleet planning, airport operations at hubs like Chicago O'Hare International Airport and London Gatwick Airport, and regional markets across North America, Europe, and Asia.

Development and Design

Development began in the early 1990s under the stewardship of Boeing leadership including Phil Condit and engineering teams influenced by programs such as the Boeing 757 and Boeing 767. The design introduced a redesigned wing derived from the Boeing 737 Classic with increased span and area, revised flaps and slats informed by research at NASA Langley Research Center, and strengthened landing gear for operations at airports like Los Angeles International Airport. Avionics upgrades included a two-crew flight deck inspired by systems in the Boeing 777 and Boeing 737NG commonality goals with United Airlines and Delta Air Lines fleet planning. Engines were updated to CFM International CFM56 variants supplied by CFM International, a joint venture of General Electric and Safran (formerly Snecma), improving fuel burn and noise characteristics to meet regulations from authorities such as the Federal Aviation Administration and European Union Aviation Safety Agency. The program's industrial partners included Spirit AeroSystems for fuselage sections and Honeywell for environmental control systems, and it was influenced by market forecasts from organizations like the International Air Transport Association and Boeing Commercial Airplanes Market Analysis.

Variants

The family comprises several main variants engineered for different capacity and range profiles: the -600/-700/-800/-900 designations reflect lineage and market positioning similar to how Airbus labeled the A320neo family. The -600 series served as a corporate and short-market derivative attracting customers such as NetJets; the -700 became popular with carriers like Southwest Airlines and KLM Royal Dutch Airlines for short- to medium-haul routes; the -800 provided extended capacity competing with Airbus A321 in transcontinental markets for airlines including American Airlines and Delta Air Lines; the -900 targeted higher-density routes and was ordered by carriers such as Lion Air and Alaska Airlines. Special mission conversions were offered by firms like ILS International and Aeronautical Engineers Inc.. Cargo and combi conversions served operators such as FedEx Express and UPS Airlines.

Operational History

Entry into service in 1998 coincided with fleet renewals at legacy carriers like United Airlines and low-cost carriers such as Ryanair expanding European networks. The type has been deployed on short-haul sectors to long thin transcontinental services, serving airports including John F. Kennedy International Airport, Singapore Changi Airport, and Sydney Airport. The aircraft enabled route development by carriers such as JetBlue Airways and Norwegian Air Shuttle, influenced slot usage at constrained airports like Tokyo Haneda Airport, and factored into alliances negotiations among groups like Star Alliance, Oneworld, and SkyTeam. High utilization by low-cost carriers led to dense scheduling models comparable to those used by easyJet and IndiGo.

Technical Specifications

Typical specifications vary by variant but share common features: a two-crew glass flight deck with integrated avionics from suppliers such as Collins Aerospace and Rockwell Collins; CFM56 turbofan engines from CFM International; an updated wing with blended winglets or options from vendors like AeroVironment and later retrofits by Winglet Technology providers. Performance metrics include typical seating from roughly 126 to 215 passengers depending on layout, ranges suitable for short- to medium-haul routes comparable to the Airbus A320 family subvariants, and maximum takeoff weights adjusted per model for operations into airports like Heathrow Airport and Dubai International Airport. Systems integration followed certification standards overseen by the Federal Aviation Administration and included maintenance programs coordinated with providers such as Airbus Engineering competitors and Lufthansa Technik for overhaul support.

Safety and Incidents

The type's safety record has been subject to investigation by authorities including the National Transportation Safety Board and the Transportation Safety Board of Canada following incidents and accidents involving operators like Pakistan International Airlines and Gol Transportes Aéreos. Investigations examined factors from maintenance practices at third-party firms such as SR Technics to operational decisions by airlines including Lion Air predecessors and crew resource management training informed by findings from historical accidents such as the Tenerife airport disaster which shaped industry standards. Airworthiness directives issued by the Federal Aviation Administration addressed structural inspections, avionics updates, and fuel system measures, while global operators implemented safety management systems recommended by the International Civil Aviation Organization.

Operators and Orders

Major operators have included Southwest Airlines, Ryanair, American Airlines, United Airlines, and Delta Air Lines, with regional and charter carriers such as Alaska Airlines, JetBlue Airways, Norwegian Air Shuttle, and Lion Air also significant customers. Orders and backlog through the program lifecycle involved leasing companies like GE Capital Aviation Services and Avolon, and competition for orders featured rivals such as the Airbus A320neo family. Governments and state-owned carriers including Air China and Turkish Airlines also placed orders for various variants. The aircraft's commercial success influenced secondary markets including the used-aircraft trading overseen by firms like AerCap and reshaped fleet strategies across global carriers.

Category:Boeing aircraft Category:Commercial aircraft