What is the main function of radar in air traffic control?

• A. To track weather patterns
• B. To assist pilots in navigation
• C. To detect and monitor the position of aircraft in the airspace
• D. To communicate with passengers on board

Answer: (C)

The primary function of radar in air traffic control is to detect and monitor the position of aircraft in the airspace. Radar systems provide real-time data on the location, altitude, and movement of aircraft, which is essential for maintaining safe separation and managing air traffic efficiently. This capability allows air traffic controllers to visualize the airspace, giving them the information needed to issue instructions to pilots and to coordinate the movements of multiple aircraft simultaneously.

While radar can also provide some information related to weather patterns, its main purpose in the context of air traffic control is the surveillance and management of aircraft. Assisting pilots in navigation is typically achieved through other means, such as instruments and flight planning, rather than through radar itself. Communication with passengers needs to happen through dedicated systems and is not a function of radar. Thus, the focus of radar in air traffic control is clearly centered on tracking and ensuring the safe operation of aircraft within the controlled airspace.