Two L-39 Jets fly in tandem during a mock dogfight performance at the Air & Space Expo, Joint Base Charleston, S.C., April 28, 2018. (U.S. Air Force photo by Senior Airman Christian Sullivan) Shield AI buys company whose AI beat a fighter pilot in a dogfight Shield bought Heron Systems, which won the much-hyped AlphaDogfight trials that pitted a fighter pilot against AI in a simulated dogfight. Jul 22, 2021 By Jackson Barnett