The Russian two-seat Su-57D fighter jet completed its maiden flight. This was reported on May 19, 2026, by the Telegram channel Fighterbomber, affiliated with the Russian Aerospace Forces.

"The Su-57D made its maiden flight today. We're waiting for UAC's announcement, and they better hurry. Because there's practically nothing stopping me from posting gorgeous photos from the flight.", — the blogger wrote.

News of the first flight came just days after the same source reported that a new two-seat modification had taxied during testing. According to the source, the fighter could be designated Su-57D, Su-57UB, or Su-57ED.