But the current engines are only temporary a second stage version of the PAK-FA is expected to be powered by a new engine called the izdeliye 30, which should enter service in the mid-2020s. The engine, which runs far hotter than the original AL-31 engines from which they were originally derived, is not proving to be as reliable as initially hoped. Right now, the answer is no-the initial interim operational test versions of the Su-57 are powered by modified versions of the Su-35S Flanker-E’s engines called the AL-41F1, which produce about 33,000 pounds of thrust. But does the Su-57 represent a genuine challenge to the Raptor? After emerging from its post-Soviet doldrums, Russia has developed a challenger to the mighty F-22 in the form of the Sukhoi Su-57 PAK-FA, which is scheduled to enter limited service in 2019. For over a decade since the Raptor was declared operational in December 2005, the F-22 has been unquestionably the best air superiority fighter ever built.īut challengers are starting to appear. The Lockheed Martin F-22 Raptor is the king of skies-it combines stealth and eye-watering kinematic performance with a power array of sensors weapons.
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