The Russian su-57 show the highest grade on the test in Syria
The expert said, as evidenced by the delivery to Syria Russian su-57.
Definitely-the successful completion of the first stage of the test. This can be evidenced by the sending of four fifth-generation su-57 fighters to Syria.
"The fact of sending four su-57S to Syria testifies to the successful completion of the first stage of the state tests of these machines," Korotchenko said. - In General the purposes of the transfer of the su-57 in Hamim may be multiple - testing in real combat conditions with new types of weapons, testing of on-Board radar system and confirm its performance characteristics.”