My Own concept of Su-57, basically a Mix of Various Sukhoi (and maybe American plane) into one.

Real Aircraft lore

'The Sukhoi Su-57 (NATO reporting name "Felon") is a twin-engine stealth multirole fighter aircraft developed by Sukhoi. It is the product of the PAK FA (''prospective aeronautical complex of front-line air forces'') programme, which was initiated in 1999 as a more modern and affordable alternative to the MFI (Mikoyan Project 1.44/1.42). Sukhoi's internal designation for the aircraft is T-50. The Su-57 is the first aircraft in Russian military service designed with stealth technology and is intended to be the basis for a family of stealth combat aircraft.' -Wiki

The lore also but with my twist

after the Cancellation of YF-23 Russia later try to replicate it by using the Su-57 project, as well for the Experimental engine from the Su-27UB LL-UV which is a Thrust vectoring engine put into Su-27.

Armmament

• GSH-30-1 Autocannon internally
• 3x R-73 (Internally)
• 3x R-77 (Internally)
  

Activation Group

AG1 : Canopy
AG3 : Weapon Bay 1
AG4 : Weapon Bay 2
AG7 : Parking Brake

Trivia

• Su-27UB LL-UV is an Experimental Su-27 use one Thrust vectoring engine