Boeing 737 MAX 7 vs. Boeing 767-300ER

The Boeing 737 MAX 7 is a narrow-body, twin-jet aircraft, and the smallest variant in the re-engineered 737 MAX family. The MAX 7 was originally announced in 2016, but has yet to fly for an airline as of 2023. It had its first flight on March 16, 2018, from the Boeing factory in Washington. The MAX 7 variant will reportedly get certification from the U.S. Federal Aviation Administration by April 2024, which will allow carriers to start flying the aircraft in late 2024. Southwest Airlines is expected to be the launch operator for the MAX 7. The 737 MAX 7 is designed to offer enhanced range and capacity for short to medium-haul flights, catering to airlines seeking a modern and flexible solution for their fleets. It is based on the original 737-700, and features very minor modifications in terms of size. It is expected to fly 1,000 nautical miles farther than the -700 with, 18% lower fuel costs per seat.

At 116.7 feet (35.6 meters) in length with a wingspan of 117.8 feet (35.9 meters), the 737 MAX 7 is adept at operating in diverse airport environments, including those with runway and size constraints. The aircraft typically seats 153 passengers, providing a blend of comfort and efficiency that is attractive for airlines operating regional routes. Powered by two CFM International LEAP-1B engines, the MAX 7 achieves a total thrust of 58,600 lbf (260.0 kN). It has a fuel capacity of 6,816 US gallons (25,800 liters), supporting a range of 3,850 nautical miles (7,130 kilometers). With a cruise speed of 521 mph (839 km/h), the 737 MAX 7 offers airlines an efficient means to cover short and medium distances.

Competitors for the MAX 7 include aircraft from Airbus like the A319neo and A220, and the E2 series from Embraer. Airlines such as Southwest Airlines and WestJet have selected the Boeing 737 MAX 7 for its operational flexibility and economic performance. The aircraft's capability to efficiently serve a range of regional routes makes it a valuable addition to airline fleets, especially for carriers looking to optimize their domestic and short-haul networks.

The Boeing 767-300ER, an extended-range variant of the 767 family, entered service in 1988 as a response to the growing demand for efficient and versatile wide-body aircraft. This model, with its significant enhancements in range and capacity, has become a staple in the fleets of various airlines for long-haul operations. At its peak in the 1990's, a brand new 767-300ER was valued at roughly $85 million.

With a length of 54.9 meters (180.2 feet) and a wingspan of 47.6 meters (156.2 feet), the 767-300ER is designed for operational efficiency in both airport compatibility and aerodynamics. The wing area of 283.3 square meters (3049.4 square feet) contributes to the aircraft's stable and efficient flight characteristics, especially over extended distances.

The -300ER's increased range was made possible by larger fuel tanks and a higher max takeoff weight (MTOW) of 407,000 lbs (185,000 kgs). The updated variant has a fuel capacity of 90,700 liters (23,960 US gallons), allowing it to cover distances of up to 11,070 kilometers (5,977 nautical miles). This capability makes it particularly suitable for transcontinental and transoceanic routes, offering airlines the flexibility to connect distant cities with fewer stops. Engines options for the -300ER included Pratt & Whitney PW4000s, General Electric CF6s, or Rolls-Royce RB211s. These were capable of a total maximum thrust of 548.0 kN (123,000 lbf). The aircraft exhibits robust performance, necessary for long-haul flights carrying a full load of both passengers and cargo.

The cabin of the 767-300ER is designed to typically seat 261 passengers in a dual-class layout, with the potential to accommodate up to 351 passengers in a high-density configuration. The typical layout includes a spacious business class and a larger economy class, often arranged in a 2-3-2 seat configuration, balancing passenger comfort and density.

Competing in the wide-body market, the Boeing 767-300ER has faced competition from aircraft such as the Airbus A330 and the smaller A300. These models offer similar long-range capabilities and passenger capacities, making the market segment highly competitive. Many carriers have operated the 767-300ER, including Delta Air Lines, United Airlines, British Airways, Japan Airlines, and All Nippon Airways. These carriers have leveraged the aircraft's range and capacity to effectively serve a variety of long-haul routes, underlining its role as a versatile and reliable option in their fleet.

The Boeing 767-300ER's introduction and subsequent service record reflect its importance in the evolution of wide-body aircraft, particularly in the context of long-haul commercial aviation. Its combination of range, capacity, and operational flexibility has solidified its position as a significant player in the global aviation industry.