Sukhoi/HAL FGFA yet to begin, the Russian side has expressed optimism that a test article will be ready for its maiden flight by 2009, one year after PAK FA scheduled maiden flight and induction into service by 2015. By February 2009, as per Sukhoi General Director Mikhail Pogosyan, India will initially get the same PAK FA fighter of Russia and the only difference will be the software. In 2010, a total of 500 aircraft were planned with options for further aircraft. Russian Air Force will have 200 single-seat and 50 twin-seat PAK FAs while Indian Air Force will get 166 single seated
Sukhoi Su-15 the Su-15 was abruptly retired from the new Russian Air Force in 1993 to comply with the Treaty on Conventional Armed Forces in Europe. Most were hastily scrapped in favour of more advanced interceptors, including the Su-27 and MiG-31, but some are in reserve storage for emergency use. In Ukraine, the last Su-15s (at Kramatorsk and Belbek) were withdrawn from use in 1996. Some Western reports indicate that the Su-15TM was also designated Su-21 and the Su-15UM Su-21U. These reports are apparently incorrect. Designation Su-21 was reserved for Su-17M4 but never used. Sukhoi Su-15 The Sukhoi Su-15 (NATO reporting name: