Lee Young-su, right, and another pilot give a thumbs-up after conducting a test flight of the KF-21 fighter jet at an air base in Sacheon, South Gyeongsang, on Feb. 19. [NEWS1] A KF-21 fighter jet ...

(Photo courtesy of Vincent Aiello) Writing a book about his circuitous journey to becoming a fighter pilot and teaching ... to learn to do besides just give up? If it is something I want to ...