Sukhoi delivered the 4th production Su-35S fighter for the State Joint Tests

Sukhoi delivered the Su-35S-4 for the State Joint Tests. The plane flew from Komsomolsk-on-Amur to the V.P.Chkalov State Flight Test Centre of the Ministry of Defence.

The serial production of the Su-35S is going on at the Sukhoi's Y.A.Gagarin Komsomolsk-on-Amur Aircraft Production Association (KNAAPO) in accordance with the state contract signed in 2009 to deliver 48 aircraft to the Russian Ministry of Defence by the year 2015.