4 words in this vocabulary list
noun a designated route in the sky for aircraft to travel along
noun a designated route followed by an aircraft during flight
noun In a broader sense, ACAS can refer to any type of collision avoidance system used in various industries and applications.
noun abbreviation for Instrument Flight Rules, which are a set of regulations and procedures for flying in conditions where visibility is restricted
adjective describing something related to or in accordance with Instrument Flight Rules