The PS-90A bypass turbojet engine, through continuous enhancements, has become a reliable and in-demand engine. It is the only domestic fourth-generation engine used in both civil and transport aviation. The engine is serially produced at the UEC-Perm Motors plant, while the design documentation is developed by UEC-Aviadvigatel.
In the PS-90A design, heat-resistant intermetallic alloys, ceramic thermal barrier coatings, and single-crystal turbine blades are employed to maintain operational characteristics at high temperatures. These design features, coupled with modern assembly technologies, increase the lifespan of main components and extend the engine’s overall service life.
To reduce environmental impact and comply with ecological standards, low-emission combustion principles are applied in the combustion chamber.
Engineers of the UEC-Aviadvigatel conducted work on detuning from the toothed gear own frequencies to reduce noise in the PS-90A. Additionally, second-generation sound-absorbing elements use polymeric composite materials to meet the noise requirements of the International Civil Aviation Organization (ICAO).
The PS-90A1 modification was developed for the Il-96-400T transport aircraft, featuring increased thrust during takeoff, a low-emission combustion chamber, and second-generation sound-absorbing structures.
The PS-90A2 engine was created for the Tu-204SM mid-range aircraft, equipped with a new high-pressure turbine and automatic control system. Compared to the base engine, it requires less maintenance and has an increased lifespan of main components.
Since the start of serial production in Perm, 541 engines have been manufactured. Currently, 424 PS-90A family engines are in operation, with over half of them being the base PS-90A variant.
Due to the development of passenger and transport programs, a significant increase in PS-90A engine production and its modifications is planned. The annual projected demand for PS-90A family engines is expected to reach up to 120 units from 2026. A technical re-equipment program has been launched at the UEC-Perm Motors plant to boost production, expand capabilities for engine and component repair, and increase the production of PS-90 engines and their components.
Based on United Engine Corporation (UEC) information
