The AL-41F-1 Engines are used on the Su-57. They are upgraded AL-31 engines. Only 30 engines are to be built for the single operational squadron (12 aircraft). The extra 6 engines will be used for prototypes and other programs. they provide 14.5t of thrust. These engines have a 4-stage compressor and a single stage turbine, in the cold section. In the hot section they have a nine-stage compressor and a single-stage turbine.
[[AL-31]] – predecessor
[[izdeliye 30 engine]] – successor