自じ動どう航こう空くう管かん制せいMeaningsNoun1. AATC; Automatic Air Traffic ControlKanji used自self動move航navigation空empty air管pipe制controlComposed of自じ動どうautomatic; intransitive verbNo-adjective航こう空くうaviation; flyingNoun管かん制せいcontrol (by the state); controlling; coordination; air traffic controlNoun