"In December, the aircraft plant in Komsomolsk-on-Amur will supply the Russian Aerospace Forces with four serial fighters Su-57", the source said.
According to the source, the Russian Aerospace Forces are currently testing the only serial Su-57 aircraft they have received.
The Sukhoi Su-57 is a cutting-edge Russian jet that performs the functions of a strike aircraft and a fighter, and is capable of destroying all types of air, ground, and naval surface targets. The jet carried out its maiden flight in 2010.