Boeing 737-600 vs. Bombardier CRJ-900

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 Bombardier CRJ-900, a member of the Canadair Regional Jet series, is a narrow-body regional jet designed for efficient short to medium-haul air travel. First entering service in 2001, the CRJ-900 was developed as an extended version of the CRJ-700, offering greater passenger capacity and slightly longer range capabilities. The -900 was the most popular CRJ variant, with over 487 deliveries throughout its production.

With an overall length of 36.2 meters (118.8 feet) and a wingspan of 24.9 meters (81.7 feet), the CRJ-900 is larger than its predecessor, enabling it to accommodate more passengers. Designed primarily for regional airline operations, the CRJ-900's dimensions allow it to operate effectively in smaller airports, which is a key requirement for regional air travel. Powered by two rear-mounted GE CF34 engines, the CRJ-900 delivers a total maximum thrust of 129.0 kN (29,000 lbf), and has a range of 2,871 kilometers (1,550 nautical miles). The aircraft's operational efficiency and range make it a versatile choice for airlines looking to connect smaller cities and towns with major airline hubs.

The cabin of the CRJ-900 is configured to seat around 81 passengers in a standard layout, with a maximum capacity of 90 passengers in a higher-density arrangement. In the regional aircraft market, the Bombardier CRJ-900 competes with other regional jets such as the Embraer E175. Airlines that operate the CRJ-900 include American Eagle, Delta Connection, and Lufthansa CityLine. These carriers utilize the CRJ-900's strengths in serving regional networks, benefiting from its ability to efficiently connect smaller airports with larger travel hubs. The aircraft's role in regional aviation is characterized by its adaptability to varying route structures and its capacity to offer a comfortable travel experience on short to medium-haul flights.

The Bombardier CRJ-900's production and operational history highlight its importance in the regional jet market. Its design and capabilities align with the needs of regional airlines, providing a practical and efficient solution for connecting communities and fostering accessibility to air travel across regional networks. The last CRJ-900 to ever be built was delivered in 2021 to SkyWest Airlines.