ATR 72-600 vs. McDonnell Douglas DC-9-30

The ATR 72-600, part of the renowned ATR aircraft family, is a twin-engine, high-wing turboprop airliner designed primarily for regional and short-haul flights. First flown in 1988, this model has become a popular choice for airlines operating in small markets.

ATR, the manufacturer of the ATR 72, has produced over 1800 units through 2023. The -600 variant is the latest model to be designed, making its first flight in 2007. Compared to the smaller ATR 42, the ATR 72 has a longer fuselage and wider wingspan. At 27.2 meters (89.1 feet) from nose to tail and a width of 27.1 meters (88.7 feet), the ATR 72-600 is characterized by its compact and efficient design, suitable for operations at smaller airports. It has a max takeoff weight of 23,000 kg (50,706 lbs), and a max payload of 7,400 kg (16,313 lbs). The ATR 72-600 is powered by two engines, delivering a total output of 3692 kW (4,950 shp), providing reliable performance for its operational requirements. It has a fuel capacity of 6,400 liters (1,691 US gallons), which contributes to its range of 1,528 kilometers (825 nautical miles). With a cruise speed of 510 km/h (317 mph), the ATR 72-600 offers an efficient travel option for regional airlines, connecting smaller communities and cities.

In the regional aviation sector, the ATR 72-600 competes with aircraft like the Bombardier Q400 and Embraer E-Jets. Its advantage lies in its operational cost-effectiveness, making it an appealing choice for airlines serving regional routes with moderate passenger volumes. Airlines such as Air New Zealand, IndiGo, SAS, and TAROM operate the ATR 72-600, utilizing its capabilities to serve regional networks. These carriers value the aircraft for its ability to provide efficient, reliable service on shorter routes, which are crucial for maintaining regional connectivity. The introduction of the ATR 72-600 to the market was driven by the need for an economical, versatile aircraft that could effectively serve the regional aviation segment. Its operational role has been defined by its capacity to offer cost-efficient solutions for airlines operating on less dense routes.

Today, the ATR 72-600 remains a significant player in the regional aircraft market, demonstrating its continued relevance in connecting smaller cities and communities.

The McDonnel Douglas DC-9-30, a narrow-body jet airliner first introduced in 1966, stands as a significant aircraft in the evolution of commercial aviation. Designed during an era of rapid growth in air travel, the DC-9-30 was developed to meet the demands of short to medium-haul routes, offering airlines a more efficient and practical alternative to the larger jetliners of the time. The Series 30 of the DC-9 included four main sub-variants, -31, -32, -33, and -34. During its production, the -30 was by far the most popular model of the DC-9 with 585 units delivered.

This aircraft was initially developed as the Douglas DC-9, prior to August 1967 merger with McDonnell Aircraft. The DC-9-30 measures in at 36.4 meters (119.3 feet) in length. This size enabled it to operate efficiently in smaller airports and on shorter runways - a niche that was underserved at the time of its introduction. Powered by a pair of Pratt & Whitney PWJTD engines, the DC-9-30 has a total thrust output of 134.0 kN (30,000 lbf). Its fuel capacity of 13,900 liters (3,672 US gallons) gives the DC-9-30 a range of approximately 2,800 kilometers (1,512 nautical miles). This range was particularly advantageous for airlines looking to serve regional networks with an efficient and reliable jet.

The DC-9-30's typical five abreast seating layout can fit around 115 passengers, with a maximum of 127 in a high-density layout.

In its market segment, the McDonnel Douglas DC-9-30 was a key competitor to other short-haul aircraft of the era. Its introduction provided airlines with a jetliner that was not only smaller and more versatile than the larger, long-haul aircraft but also more efficient and economical for short to medium-range routes.

Airlines such as Delta Air Lines, Eastern Air Lines, and TWA were prominent operators of the DC-9-30, utilizing its capabilities to enhance their regional route networks. The aircraft's role in these fleets demonstrated its effectiveness in bridging the gap between propeller-driven airliners and larger jets, contributing significantly to the growth of regional air travel.

The McDonnel Douglas DC-9-30's production and service history highlight its importance as a practical and versatile aircraft in commercial aviation. The last DC-9 to ever be built was delivered in 1982. After its retirement, McDonnell Douglas went on to produce the MD-80 and the MD-95.