The Sukhoi Su-57 is a single seat multirole 5th gen fighter. It is Russia's first stealth fighter, is powered by two izdeliye 117 engines, and features the ability to supercruise, has supermaneuverability, and stealth technology. In 2001, the PAK FA program was created to make a next generation fighter in order to replace the SU-27 and MiG-29. In 2002, Sukhoi's T-50 was selected over Mikoyan's E-721. In 2007 Alexander Zelin was quoted that the development stage was finished, and that flight tests would begin. In 2010 the first prototype made its maiden flight, and the T-50 was publicly shown at the 2011 MAKS airshow, then the first test trials occurred in 2014. The deliverey of the first production planes were delayed from 2015 to 2020 due to errors during testing, then by 2020 the aircraft entered service.