Russian military contracts 1st batch of 5th-gen Su-57 stealth fighters

Cutting-edge Su-57 performs head-spinning stunts (VIDEO) https://t.co/pnOUkcR3Q8 pic.twitter.com/WArHFjTnfl

— RT (@RT_com) March 4, 2018

Praising the pace of the work by the Sukhoi aircraft manufacturer on the production of the new state-of-the-art, single-seat fighter, Krivoruchko added that engineers are finishing tests on the second-stage engines of the Su-57. The jet was known as the PAK FA and T-50 during development.

READ MORE: Russian Su-57 v US F-35: Which is better?

The Su-57, whose avionics system allows autonomous battlefield calculations to assist the pilot, is expected to eventually replace the iconic, but aging, Su-27 multipurpose fighters. After making its maiden flight in 2010, and after years of research and development, Russia's fifth-generation stealth fighters could come into service in 2019, CEO of Russia's United Aircraft Corporation Yuri Slyusar stated on Friday.