The three-engined Yakovlev Yak-42 (NATO reporting name: Clobber) was designed as a replacement for the twin engined Tupolev Tu-134 jet as a mid-range passenger jet. The Yak-42 was also the first airliner to be produced in the Soviet Union to be powered by modern high-bypass turbofan engines.

Caracteristics of the Yakovlev – Yak/42
- Crew : 2 pilots + cabin crew
- Wingspan : 34,20 m
- Lenght : 36,38 m
- Height : 9,80 m
- Wing area : 150 m2
- Empty weight : 34 500 kg
- Maximum takeoff weight : 57 500 kg
- Range : 1 960km
- Maximum speed : 810km/h
- Cruise speed : 750km/h
- Powerplant : 3 engines ZMKB Progress D-36
- Capacity : 90 - 126 passengers