Tests of the PAK FA with the engine of the second stage will last for several years

The fifth generation fighter, the su-57

© Sergey Bobylev/TASS

MOSCOW, December 7. /TASS/. Test fifth-generation fighter, the su-57 (PAK FA – Promising aviation complex tactical aviation, also known as T-50) will last for several years. About TASS said the President of the United aircraft Corporation Yury Slyusar.