S. Korea’s homegrown KF-21 fighter jet makes first supersonic flight KF-21 flies supersonically six months after S.
Korea began journey of test flights in July last year South Korea’s homegrown KF-21 Boramae fighter prototype No.1 conducts a first-ever supersonic test flight on Tuesday afternoon at the base of South Korea’s Air Force 3rd Training Wing in the city of Sacheon, South Gyeongsang Province. (Photo - Defense Acquisition Program Administration) KF-21; 지난해 7월, 첫 시험비행에 나선 이후, 6개월만에 음속돌파비행...
