Friday, August 23, 2013

AvWeek: Russian PAK-FA/Sukhoi T-50 Expectd to Perform at MAKS 2013 Airshow


A highlight of the MAKS air show, which opens at Zhukovsky Airport near Moscow next week, is likely to be the demonstration of the Sukhoi T-50 PAK FA (Perspektivny Aviatsionny Kompleks Frontovoy Aviatsii—Future Tactical Air System) fighter.

The T-50 appeared at MAKS two years ago, but is now flying with updated control laws that expand its flight envelope. (The program had flown fewer than 100 test sorties between its January 2010 maiden flight and its MAKS debut.) Recent videos show the aircraft performing what appear to be sustained-altitude flat rotation maneuvers and high-angle-of-attack turns similar to those demonstrated at the Paris air show by the Su-35S. Four T-50 prototypes have now flown and a fifth is expected to fly by the end of the year. The first state acceptance trials are due to start in 2014, United Aircraft Corporation President Mikhail Pogosyan said earlier this year, and production should start in 2015.

Russian President Vladimir Putin has said that production aircraft will enter service in 2016. However, since the aircraft has yet to fly with its definitive engine, this most likely indicates that the Russian air force is reverting to Soviet-era practice by equipping an operational test unit with interim-standard aircraft while development of the objective system is completed.

Many details of the fighter's equipment and armament remain classified or unpublished. However, in recent months the Sukhoi design bureau has obtained several patents relating to the T-50, including the rationale behind the stealth fighter's configuration.

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