The Irkut MS-21 (Russian: МС‑21 "Магистральный Самолёт 21 века" - "Magistralny Samolyot 21 veka" - "Airliner of the 21st Century") is a series of three twin-engine short-range and mid-range Russian jet airliners with a capacity of 150-212 passengers being developed and to be produced by Irkut and Yakovlev Design Bureau of the United Aircraft Corporation (UAC) group.
The design is based on the never realized, two engined Yakovlev Yak-242 as a development of the three engined Yakovlev Yak-42.
Slated to replace the Tupolev Tu-154 and Tupolev Tu-204/214 in service, the MS-21 certification and delivery was initially planned by 2016, but delivery was delayed to 2017.
Read more about Irkut MS-21: Development and Design, Variants, Specifications, Orders