Su-57 starts test operation ahead of first batch delivery

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Two Su-57 fighter jets simulating dogfight during MAKS 2017
Russian Deputy Defense Minister Yuri Borisov said the first stage of acceptance trials of the fifth-generation Su-57 (T-50, PAK FA) fighter jet was over and the aircraft began test operation in the troops. A contract to buy a development batch of 12 jets will be signed this year. Read more