What does AAC stand for?

Air Ambulance Company

Aircraft Approach Category

A grouping of aircraft based on a speed of Vref, if specified, or if Vref is not specified, 1.3 Vso at the maximum certificated landing weight. Vref, Vso and the maximum certificated landing weight are those values as established for the aircraft by the certification authority of the country of registry. An aircraft shall fit in only one category. If it is necessary to maneuver at speeds in excess of the upper limit of a speed range for a category, the minimums for the next higher category must be used.

Aircraft Armament Change

Airforce Attachment Camp

Airline Administrative Control

Airline Administrative Communication

Airport Administration Centre

Airport Advisory Committee

Airport Advisory Commission