The Sukhoi T-50 is a prototype for the fifth-generation Russian stealth fighter, the PAK-FA, which many experts claim could outperform the F-35 Joint Strike Fighter.

With its advanced avionics, large fuel capacity, “extreme plus agility”, and ability to avoid detection, the PAK-FA could become the “most lethal and survivable fighter ever built for air combat engagements,” according to Air Power Australia, a respected authority on aeronautics.

The T-50 had its first flight in 2010, and Russia will purchase 60 production-standard aircraft after 2016.