A prototype of a promising fifth-generation fighter T-50 (PAK FA) during the flight test to break the sound barrier, reports "Interfax". According to the source agency, the first supersonic flight took place "last week" and was considered a success. Currently, prototypes of the aircraft flight test program run at supersonic speeds. In flights involved two prototype aircraft, only made 40 test flights. The first prototype T-50 flies from January 2010, and the second such aircraft joined the test program in early March 2011. According to the schedule, the test airframe PAK FA will be completed in 2011-2012. In 2013, the Russian Defense Ministry will receive ten experienced the initial batch of machines that will be tested for operational use. Fighters arrive in Lipetsk center deployment and retraining flight crews. In 2015, the serial will purchase the T-50.
Technical details of the T-50 are classified. Earlier, official sources have stated only that the aircraft will be highly intellectualization of the board will be able to take off and land on runways length of 300-400 meters and will be able to perform combat missions in any weather and time of day. In addition, the Russian fighter will be able to make super-maneuverable and cruise at supersonic speeds.