The MD-90 is essentially a variant of the MD-80 with engine replacement and some improvements. Initially, it was designated DC-9 Super 90 and was named MD-90, when in November 1989 it was officially launched into production. The MD-90 aircraft has a fuselage cross-section similar to that of the MD-80, an improved wing with the high lift, and a cockpit equipped with dashboards with an electron-beam data display. Variants of the MD-90 aircraft differ in the choice of various modular components.
The Pratt & Whitney JT8D-200 Series engines have been replaced with advanced V2500 turbofan engines that are quieter and cleaner. In June 1992, the China National Aerotechnological Corporation ordered the first batch of 20 MD-90-30T aircraft (as complete sets) for assembly at factories in Shanghai. The final number of aircraft ordered by China is 170 aircraft, called the Trunkliner.
In March 1994, Delta Air Lines received the first aircraft in the MD-90-30 version. Further development of the MD-90-30 aircraft should be the MD-90-50 version with a take-off mass of 78 tons and V2528-D5 engines (with a thrust of 12,710 kgs). The plane will have
additional fuel tanks, as a result of which its flight range will increase to 5500 km. Modification MD-90-55 will be able to carry 187 passengers in a tourist version. In 1992, an agreement was signed between McDonnell Douglas and the PRC on the production of 20 MD-90-30T aircraft in China under license (Trunkliner is a special 147-seat version developed by order of China with a modified four-wheeled landing gear with tandem wheels for take-off and landing on semi-prepared runways), and subsequently, bring their production to 150. In 1994, an additional agreement was signed, according to which the PRC will purchase 14 MD-90-30 aircraft in the United States (except for licensed aircraft).
The aircraft is equipped with an EFIS digital avionics system with six color flat-panel LCD multifunction displays, an automatic airplane navigation system (FMS), and a TCAS flight collision avoidance system. Two turbojet engines International Aero Engines V2525-D5 (thrust of 11350 kgs) were installed.
- MD-90-10: the main version, equipped with two V2522-D5 engines with a thrust of 97 kN, is designed to replace the aircraft.
- MD-87: passengers from 111 to 116
- MD-90-30: the fuselage is extended by 1.45 m, two V2525-D5 engines with a thrust of 111 kN are installed. Designed to replace the MD-83 aircraft, accommodates 158 passengers.
- MD-90-30T Trunkliner: a special 147-seat variant, designed by order of China, with a modified four-wheeled chassis with a tandem wheel arrangement for takeoff and landing on semi-prepared runways.
- MD90-40: an even longer version (52.3 m), equipped with two V2528-D5 engines with a thrust of 124 kN, each designed for 181 passengers. The MD90-40EC variant is being designed with increased fuel supply and payload for use in Europe.
- MD90-50: option with V2528-D5 engines.
|Aircraft Length, m||46.50||46.51|
|Aircraft Height, m||9.42||9.33|
|Wing Area, m2||112.30||112.30|
|Weight kg: 1)empty 2)maximum take-off||1)39275|
|Engine type||2 turbofan engines IAE V2525-D5||2 turbofan engines IAE V2525-D5|
|Thrust, kgs||2 x 111||2 x 111|
|Maximum speed, km / h||895||875|
|Cruising speed, km / h||830||810|
|Economic speed, km / h||802||802|
|Practical range, km||4329||4200|
|Practical ceiling, m||10670||10670|
|Payload||137-146 passengers in the mixed class||152 passengers in the cabin of two classes or 172 passengers – maximum or 17300 kg of cargo|