Bombardier CRJ-900 vs. McDonnell Douglas MD-11

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.

The McDonnell Douglas MD-11 is a wide-body, tri-jet airliner, recognized for its extended range and enhanced capabilities in long-haul commercial aviation. As a successor to the iconic DC-10, the MD-11 incorporated advanced technology and design improvements, making it a significant model in the evolution of wide-body aircraft. The MD-11 took its maiden flight in 1990, and was produced until the turn of the 21st century. There are no MD-11s servicing passenger flights today, but some MD-11 are still being used for freight operations with FedEx, UPS, and Western Global Airlines.

With a length of 61.6 meters (202.1 feet), the MD-11 is notably longer than the DC-10, which provided increased passenger and cargo capacity. This extension in length was complemented by a wingspan of 52.0 meters (170.5 feet), which included winglets for improved aerodynamic efficiency. The MD-11's was equipped with GE CF6-80C2s or PW4000 turbofan engines, which delivered a total maximum thrust of 822.0 kN (123,000 lbf). With a substantial fuel capacity of 146,173 liters (38,615 US gallons), the MD-11 boasts a range of approximately 12,455 kilometers (6,725 nautical miles), enabling it to operate on intercontinental routes with ease.

The MD-11 comfortably accommodated 298 passengers, and could be designed to fit over 340 in a higher density configuration. The most common configurations for the twin aisle jet included 9 seats to a row (3-3-3 or 3-4-2).

In the competitive landscape of long-haul airliners, the McDonnell Douglas MD-11 was positioned as an alternative to models like the Boeing 747 and the Lockheed L-1011 TriStar. By 2004, most carriers that utilized the MD-11 for long-haul passenger routes had replaced it with the Airbus A330, A340, and Boeing 777. When Boeing acquired McDonnell Douglas in 1997, it ultimately created internal competition for the MD-11 with the 767 and 777. A lack of interest from the market also lead to Boeing cutting production for the commercial variant short, while the freight version was continued for slightly longer.

KLM, Swissair, and Delta Air Lines were among the airlines who utilized the aircraft's range and capacity to expand their international route offerings. The MD-11's operational role was characterized by its ability to efficiently serve long-haul routes, offering a blend of passenger comfort and operational economics. Some airlines like China Eastern Airlines and Korean Air had converted their MD-11 aircraft into freighters rather than selling or retiring them.

The MD-11's production and service history reflect its role as a pivotal model in the wide-body aircraft segment. Its design and technological advancements, including the use of winglets and a glass cockpit, marked important steps in the advancement of commercial aircraft design. Although its production was eventually surpassed by more modern aircraft, the MD-11 remains a notable aircraft in the history of aviation, particularly for its contributions to long-haul air travel.