Yak-242 (which is also known as MC-21) is the proposed series of three twin-engine mid-range Russian jet airliners with a capacity of 150-250 passengers being developed and to be produced by Irkut Corporation and Yakovlev Design Bureau of the United Aircraft Corporation (UAC) group.
The initial design is to include composite materials and new metal alloys deployment, modern onboard systems and new-built engines. The designer plans that the MC-21 will be 10-15% more efficient than current Airbus A320 and Boeing 737 aircraft in the same class and it will have structural weight efficiency advantage, lower operating costs, and lower fuel consumption.
MC-21 family will include:
MC-21-200 - baseline model with 165 seats in maximum single-class configuration;
MC-21-300 – increased capacity up to 211 passengers;
MC-21-400 - stretched model with up to 250 passengers.
Each of these models will have variants with extended ranges. The maiden flight of MC-21-300 was completed in May 2017 and deliveries commencing in 2020.List of aircraft operators: