This is a stealth design that has been in development for about ten years.
http://www.defencetalk.com/russias-f...-flight-23900/
Russia’s Future PAK FA Fighter Makes Maiden Flight
Air Force News — By RIA Novosti on January 29, 2010 at 6:48 am
Moscow: Russia's prototype fifth-generation fighter made a 45-minute maiden flight on Friday in the Far East, Russian television reported....
The country's top military officials earlier said the stealth fighter jet, with a range of up to 5,500 km, would enter service with the Air Force in 2015.
Russia's fifth-generation project is Sukhoi's PAK FA and the current prototype is the T-50. It is designed to compete with the U.S. F-22 Raptor, so far the world's only fifth-generation fighter, and the F-35 Lightning II.....
http://www.youtube.com/watch?v=22fN4fVoFdY
Photos: 27 March 1999, outside Belgrade.