'''Air Traffic Control''' ('''ATC''') is a network of ground/airport based services whose primary purpose is to provide separation services for [[aircraft]] on the ground and in the air. [[English]] is the official language of air traffic control. <ref>http://www.ehistling-pub.meotod.de/01_lec06.php</ref> | '''Air Traffic Control''' ('''ATC''') is a network of ground/airport based services whose primary purpose is to provide separation services for [[aircraft]] on the ground and in the air. [[English]] is the official language of air traffic control. <ref>http://www.ehistling-pub.meotod.de/01_lec06.php</ref> |