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Although there is no reliable information about the PAK FA's specifications yet, it is known from interviews with people in the Russian Air Force that it will be stealthy, have the ability to supercruise, be outfitted with the next generation of air-to-air, air-to-surface, and air-to-ship missiles, and incorporate an AESA radar. The PAK FA will use on her first flights 2 Saturn 117S engines (about 14.5 ton thrust each). The 117S is an advanced version of the AL-31F, but built with the experience gained in the AL-41F program. The AL-41F powered the Mikoyan MFI fighter (Project/Article 1.44). Later versions of the PAK FA will use a completely new engine (17.5 ton thrust each), developed by NPO Saturn or FGUP MMPP Salyut.
Originally posted by spikey
reply to post by deltaboy
"The AL-41F powered the Mikoyan MFI fighter"...
MFI fighter?! It's bound to come with screws missing and no instructions.
Originally posted by HatTrick
BTW - round exhaust nozzles = stealth FAIL
However, it's a very cool looking rendering.