After taxiing, which ATC unit should be contacted for departure clearance at EFTA?

The correct answer, Academy Tower, refers to the designated unit responsible for granting departure clearance after an aircraft has completed taxiing. In an airport environment, different Air Traffic Control (ATC) units manage specific functions. The Tower is primarily in charge of managing takeoffs and landings, as well as providing clearance for aircraft to proceed onto the runway for departure.

Academy Ground, while responsible for managing ground movements and the initial taxi instructions for aircraft on the airport's surface, does not issue takeoff clearances. It is essential to communicate with the Tower for departure clearance because they possess the authority and situational awareness necessary to ensure safety and efficiency in air traffic operations.

The other options, while related to airport operations, do not have the clearance authority for departure. The Academy Apron typically refers to the area where aircraft are parked, loaded, and unloaded without being airborne, and Emirates Control does not apply to clearance in this specific context at EFTA. Thus, contacting the Academy Tower is the proper protocol for receiving clearance before a takeoff can occur.