Sukhoi Su-57 at the Russian Khmeimim air base in Syria. The aircraft were deployed along with four Sukhoi Su-35 fighters, four Sukhoi Su-25s, and one Beriev A-50 AEW&C aircraft. Three days later two more Su-57s were reported to have arrived in Syria. The deployment was criticised by some experts as overly risky, especially after reports of drones attack at Khmeimim air base.Military correspondent of "Komsomolskaya Pravda" was cited as saying that according to his information the Su-57s have "excellently" carried out their mission in Eastern Ghouta. On 1 March 2018, the Russian Defence Minister Sergey Shoygu confirmed that the two Su-57s indeed
Sukhoi Su-30MKK Russia's inventory, developed by Tikhomirov, was offered to China. However, it is highly unlikely that China will adopt this newest Russian airborne radar because all models of the Su-30 series can only provide half of the power required for the 5 kW rated radar, and currently, only Sukhoi Su-35 and Sukhoi Su-37 have enough power to support this newest Russian airborne radar. Purchasing Irbis-E phased array radar would lock China into yet another deal with Russia to upgrade its Su-30MKK fleet that would greatly increase the cost, because China currently lacks the ability to do so by itself, or is