Boeing 787-10 vs. McDonnell Douglas MD-11

The Boeing 787-10 is a wide-body, twin-engine jet airliner designed for medium to long-haul routes. First flown in 2017, the 787-10 is an extension of the Dreamliner series, offering increased capacity and range to meet the evolving needs of the aviation industry.

Measuring 68.3 meters (224.0 feet) in length, the 787-10 is considerably longer than its predecessors, the 787-8 and 787-9. It retains the same wingspan of 60.1 meters (197.2 feet) and wing area of 377.0 square meters (4058.0 square feet). The aircraft's design includes the use of composite materials, which contribute to its lightweight structure and improved fuel efficiency compared to traditional aluminum designs. The 787-10 has two engine options: the General Electric GEnx or the Rolls-Royce Trent 1000. These powerplants produce a total maximum thrust of 680.0 kN (152,000 lbf). Combined with highly innovative aerodynamic design, the -10 can achieve a max range of approximately 6,431 nautical miles (11,910 kilometers).

The 787-10's cabin is designed to accommodate around 330 passengers in a standard three-class layout. In economy, seats are up to 9 abreast, with a 3-3-3 configuration. The aircraft features a passenger-friendly cabin environment with larger windows, improved air quality, and advanced in-flight entertainment systems.

In the commercial aviation market, the Boeing 787-10 has similar capacity to the Airbus A350-900 and Boeing 777-200ER. Its introduction provided airlines with an aircraft that combines operational efficiency with the capacity to serve high-demand routes effectively. In May of 2013, Singapore Airlines became the launch customer, stating they would order 30 787-10s. Other airlines that have included the Boeing 787-10 in their fleets include Singapore Airlines, United Airlines, and Etihad Airways. These carriers utilize the aircraft's capabilities to efficiently serve a mix of international and transcontinental routes.

In summary, the Boeing 787-10 represents a significant development in the Dreamliner series, offering enhanced capabilities in terms of passenger capacity and range. Its design and technological advancements reflect an evolution in long-haul air travel, providing airlines with a versatile and efficient aircraft for their long-range operations. The first -10 was delivered to Singapore Airlines on March 25, 2018. Today, major airlines like United and Air Canada continue to place orders for the 787-10. As older 777-200ERs continue to be retired, airlines may find the 787-10 to be an optimal replacement aircraft.

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.