Boeing 737-400 vs. Airbus A340-200

The Boeing 737-400, part of the 737 Classic series, is a narrow-body, twin-engine airliner developed to meet the evolving requirements of the short to medium-haul market. First introduced in 1988, the 737-400 expanded upon the success of its predecessor, the 737-300. The -400 variant entered manufacturing shortly after finalization of design plans between Boeing and launch customer Piedmont Airlines (later merged into US Airways). It gives increased capacity and range, offering an option in between Boeing's 737-300 and the 757-200.

The fuselage incorporated a key 8 foot expansion to enable typical accommodation for up to 170 passengers in a 2-class layout. Other changes included increased weights and structural reinforcements, enhanced avionics/flight controls, and higher thrust CFM powerplants required for the heavier max takeoff figures. Cost efficiencies were achieved keeping cockpit continuity with the ubiquitous 737 flight deck suite.

Spanning 119.6 feet (36.5 meters) in length with a wingspan of 94.5 feet (28.8 meters), the 737-400 was designed to accommodate the growing demand for larger single-aisle aircraft. The aircraft typically seats 144 passengers, providing more space and comfort compared to earlier models in the series. This increased capacity made the 737-400 an attractive option for airlines seeking to transport more passengers on popular routes, without the need for a larger, wide-body aircraft. Equipped with two CFM International CFM56-3C1 engines, the 737-400 delivers a total thrust of 44,000 lbf (196.0 kN). This engine configuration, combined with a fuel capacity of 5,310 US gallons (20,100 liters), allows the aircraft to achieve a range of 2,079 nautical miles (3,850 kilometers).

In the competitive commercial aviation market of its time, the Boeing 737-400 contended with models like the McDonnell Douglas MD-80 series. Its introduction marked another milestone for Boeing in the evolution of the 737 family, solidifying the company's position in the market for short to medium-haul airliners. Airlines such as Alaska Airlines, Turkish Airlines, and British Airways incorporated the Boeing 737-400 into their fleets. The aircraft's operational role was significant, enabling these carriers to expand their route networks and increase flight frequencies, particularly in domestic and regional markets.

The Airbus A340-200 is a long-range, wide-body aircraft, part of the A340 family known for its four-engine configuration. Introduced in 1992, the quadjet was designed to meet the demands of long-haul flights. The A340-200 has a longer wingspan (60.3 meters) than length (59.4 meters). The -200 version of the A340 has typical seating capacity for 250 passengers in a standard layout and a maximum capacity of 420 passengers.

Equipped with four engines that provide 136,000 pounds of thrust (600 kN), the A340-200 is recognized for its ability to cover significant distances, with a range of 6,695 nautical miles (12,400 kilometers). The aircraft's fuel capacity of 155,040 liters (40,957 US gallons) contributes to its long-range capabilities, making it suitable for routes such as transatlantic and transpacific flights. The aircraft's spacious cabin offers comfort for passengers on long-haul journeys, and its four-engine design provides additional reliability over vast oceanic and remote areas.

Competing with models like the Boeing 777-200ER, the A340-200 offered airlines a long-range option with a unique four-engine configuration. Its role in commercial aviation has been defined by its capacity to serve long-distance routes with a medium passenger load, meeting the needs of airlines for intercontinental travel.

The Airbus A340-200 has been operated by airlines such as Lufthansa and Air France, serving as a key component in their long-haul fleets. Only a small number of the -200 remain in service today. Additionally, it turned out that the -300 and -600 versions of the A340 were much more popular.