After successful completion of the first stage of T-50 testing, a preliminary conclusion of the test programme was signed at MAKS 2017. The state commission recommended production of an initial batch of aircraft which are to be assigned the new Su-57 designation.

Самолёты на фотографии: Aircrafts on the photo: Сухой Су-57 / Т-50 / ПАК ФА - РоссияRussia - 2010

Самолёты на фотографии: Aircrafts on the photo: Сухой Су-57 / Т-50 / ПАК ФА - РоссияRussia - 2010

T-50-9 509 was supposed to be shown to Vladimir Putin in a separate, closed pavilion, painted in similar large pixels. The type’s new Su-57 designation was supposed to be officially announced there, but the ceremony did not take place.

Самолёты на фотографии: Aircrafts on the photo: Сухой Су-57 / Т-50 / ПАК ФА - РоссияRussia - 2010

T-50-2 landing at Zhukovsky showing some of the modifications made to the aircraft during the first stage of testing. The main undercarriage doors are re-shaped and the fairing of the electronic countermeasures antenna located between the engines nozzles is new.

Самолёты на фотографии: Aircrafts on the photo: Сухой Су-57 / Т-50 / ПАК ФА - РоссияRussia - 2010

Su-57 final sensor suite configuration

Самолёты на фотографии: Aircrafts on the photo: Сухой Су-57 / Т-50 / ПАК ФА - РоссияRussia - 2010