Russia’s Su-57 Felon Next-generation Fighter Has Its Wings Clipped: It hasn’t been a good summer for the Russian Air Force, and now the Ukrainians are adding insult to injury. One of Russia’s most vaunted warbirds – the Sukhoi Su-57 Felon – was destroyed by a Ukrainian drone strike in June. The resilient and intrepid Ukrainians have raised the stakes in the war against Russia by using drones in deep attack mode. The destruction of the single-seat twin-engine Su-57 Felon must have created another headache for air force leaders in Moscow because it is one of the jewels in the Russian...