Boeing 737-900 vs. Boeing 737 MAX 7

The Boeing 737-900, a member of the 737 Next Generation (NG) series, was introduced in the year 2000 as a response to airline demand for an aircraft with higher capacity within the narrow-body market. This B739 model, part of Boeing's continuous innovation in the 737 series, was designed to provide an efficient solution for medium to long-range flights.

At 138.1 feet (42.1 meters) in length and 112.6 feet (34.3 meters) in wingspan, the 737-900 is notable for its extended fuselage, allowing for an increased passenger capacity. It typically accommodates 177 passengers in a two-class layout, with an economy class configured in a 6 abreast seat arrangement. The aircraft's interior design focuses on passenger comfort and space utilization, adapting to the requirements of both airlines and passengers. The 737-900 is equipped with two CFM International CFM56-7B27 engines, resulting in a combined thrust of 54,600 lbf (242.0 kN). Along with a fuel capacity of 6,868 US gallons (26,000 liters), the aircraft has a range of approximately 2,753 nautical miles (5,100 kilometers).

In its segment, the Boeing 737-900 competes with similar aircraft like the Airbus A321. Its introduction to the market was part of Boeing's strategy to expand the capabilities of the 737 family, addressing the evolving needs of the airline industry for larger single-aisle aircraft. Airlines such as Alaska Airlines, United Airlines, Turkish Airlines, and Korean Air have incorporated the Boeing 737-900 into their fleets. These carriers favor the -900 for its versatility, as it can operate both domestic and international routes. With the more recent MAX family of 737s in production, the many -900s will be replaced by the 737 MAX 9. Currently, the average age of a -900 is approximately 20 years. Many airlines have started ordering the newer MAX 9 in preparation for retirement of the older 739.

The Boeing 737-900's production history and widespread use among airlines signify its role in the development of modern air travel. While it shares commonalities with other models in the 737 NG series, its distinct capacity and range set it apart, highlighting Boeing's adaptability in responding to market trends and airline requirements.

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.