KOMSOMOLSK-ON-AMUR, March 23. /TASS/. The Russian Defense Ministry may adjust the order for the T-50 fifth-generation fighters (PAK FA) in the new economic situation with taking into account the Sukhoi Su-35 high flight characteristics, Deputy Defense Minister Yuri Borisov said on Monday.

"It would be better for us to have a reserve of PAK-FA and the possibility to move ahead in the future to using the 4+ fighters’ [Su-30 and Su-35] capabilities to the maximum," the deputy minister said.

He also said that the Komsomolsk-on-Amur-based plant in the Russian Far East that is so far making the PAK-FA prototype models is ready to launch the aircraft series production. "According to the next year plans, we should have the first delivery of the series fifth-generation fighters," Borisov said during a visit to the plant.

"Most importantly, I can say that the fighter has been a success," he said."

According to Borisov, the Defense Ministry within the adjustment of the state armaments program reserves the right to determine the number of fifth-generation fighters for purchase, so the initial plans may be corrected.

The PAK FA (literally "Prospective Airborne Complex of Frontline Aviation") is a fifth-generation fighter programme of the Russian Air Force. The T-50 is the aircraft designed by Sukhoi for the PAK FA programme. The aircraft is a stealthy, single-seat, twin-engine jet fighter, and will be the first operational aircraft in Russian service to use stealth technology. It is a multirole combat aircraft designed for the air superiority and ground attack functions.

The series deliveries of the PAK-FA fighters to the troops are to begin in 2016. According to data as of late 2014, five such fighters were assembled and three more were in the process of manufacturing. By 2020, the Russian Air Force is to receive 55 T-50 fighters, according to Russia’s United Aircraft Corporation.