Sukhoi said the deliveries last month were comprised of six Su-35S production multifunctional fighter aircraft and five serial Su-34 frontline bombers.
The Su-35S, called the Flanker-E by NATO, is an upgraded single-seat, twin-engined 4++ generation fighter with a maximum speed of more than 1,400 miles per hour at altitude and a maximum ceiling of 59,100 feet. Features include an avionics suite based on a digital information control system that integrates onboard systems and a new phased antenna array radar with a long aerial target detection range.
The aircraft also features enhanced vectored thrust engines.
Sukhoi said its SU-34 Fullback bomber, which is replacing SU-24s now in service, is a twin-seat day/night all-weather platform with large capacity internal fuel tanks and fuel-efficient bypass engines.
The bombers will be based in the western military district air base in Voronezh, the company said.