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Continue to ChatSukhoi Begins Flight Trials of Modernized Su-33 Fighters https://www.defencetalk.com/sukhoi-begins-flight-trials-of-modernized-su-33-fighters-29266/
Sukhoi Begins Flight Trials of Modernized Su-33 Fighters https://www.defencetalk.com/sukhoi-begins-flight-trials-of-modernized-su-33-fighters-29266/