Boeing 737-600 vs. Boeing 737 MAX 10

Launched in 1998, the Boeing 737-600 is the smallest aircraft in the 737 Next Generation (NG) series. It succeeded the 737-500, and was a significant evolution in Boeing's narrow-body offerings. It featured many upgraded features from the previous 737s, including aerodynamics, engines, and avionics. As the smallest NG variant, the 737-600 was designed for efficiency and adaptability, catering to airlines requiring a compact jet for short to medium-haul routes.

This aircraft extends 102.4 feet (31.2 meters) in length with a wingspan of 112.6 feet (34.3 meters). The 737-600, with a typical seating capacity for 123 passengers, offers an ideal balance between passenger comfort and efficiency, making it a fitting choice for airlines serving routes with moderate passenger demand. Equipped with two CFM International CFM56-7B20 engines, the 737-600 has a total thrust of 45,400 lbf (202.0 kN). This engine power, coupled with a fuel capacity of 6,868 US gallons (26,000 liters), gives the -600 a range of 3,051 nautical miles (5,650 kilometers). The 737-600 has a cruise speed of 528 mph (850 km/h) enabling airlines to maintain efficient and swift operations, particularly beneficial for regional network connections.

In the late 1990s and early 2000s, the Boeing 737-600 competed with aircraft such as the Airbus A318 and Bombardier CRJ series, offering airlines a modern alternative in the narrow-body market. Airlines including Scandinavian Airlines (SAS), Westjet, and Air Algerie operated the Boeing 737-600. Ultimately, the -600 variant was not a popular model of the 737 due to its economics. The -700, only slightly heavier, had a much greater payload. Additionally, the larger market was moving more towards higher capacity narrow-bodies with lower unit costs and greater revenue opportunities.

The Boeing 737 MAX 10 is the largest variant in the 737 MAX series, representing Boeing's expansion of its narrow-body, twin-engine offerings for the commercial aviation market. Launched in 2017, the MAX 10 was developed in response to airlines demanding a larger model than the MAX 9. The announcement for the MAX 10 was quickly followed by 240 orders and commitments from more than ten customers. The United States' aviation regulator, the FAA, cleared Boeing to begin certification flight testing of its 737 MAX 10 in November of 2023. Deliveries are being anticipated for early 2025.

The 737 MAX 10, with its extended fuselage, offers a greater passenger capacity compared to its siblings in the MAX series at 143 feet (43.79 meters). This increase in size allows airlines to accommodate more passengers per flight, optimizing efficiency and profitability, particularly on popular short to medium-haul routes. Equipped with advanced CFM International LEAP-1B engines, the MAX 10 delivers over 58,000 pounds of thrust. The slight stretch of the MAX 10 allows the jet to retain the existing wing design and LEAP engines from the MAX 9, with a trailing-link main landing gear being the only major change.

In the market, the Boeing 737 MAX 10 competes with aircraft like the Airbus A321neo. Both are very similar in terms of seating capacity, and range, but the MAX 10 does fall short in terms of field performance. Boeing predicts that the MAX 10 will yield a 5% lower trip cost and seat cost compared to the A321neo. It provides airlines with an alternative option in the narrow-body segment, offering a balance of capacity, range, and efficiency.

Various airlines have shown interest in the 737 MAX 10 for its ability to meet the demands of modern air travel. It is expected that United Airlines, Korean Air, Alaska Airlines, and Ryanair will have some of the largest fleets of MAX 10s. The MAX 10's capabilities make it an attractive choice for carriers looking to expand their network and serve densely populated routes efficiently.