air-to-air interface
abbreviation: Angle of Approach Indicator; also, angle of Attack Indicator
Approved Autodesk Instructor. These are instructors based at a ATC who have reached the required training level and quality and customer satisfaction level as laided down and monitored by Autodesk. The AAI approval is updated continously due to live feed back (on-line) and required training groups.
American Association of Immunologists
Australian Aid International
air-to-air interface
Arrival Aircraft Interval
Aerospace Manufacturer [US]