What impact does primary radar have on air traffic control?

• A. It improves the speed of air traffic operations
• B. It provides positional information of aircraft without transponders
• C. It measures weather patterns
• D. It enhances communication with pilots

Answer: (B)

Primary radar plays a vital role in air traffic control by providing positional information of aircraft, particularly those that may not be equipped with transponders. This capability is crucial because not all aircraft transmit signals; some may be older models, military aircraft, or those operating in specific conditions where transponder use is not feasible. By utilizing primary radar, air traffic controllers can detect and track these aircraft, ensuring safer airspace management and allowing for better situational awareness. This method of detection relies on the reflection of radar signals off objects, which is key in identifying the location and movement of aircraft in real-time.

While primary radar does contribute to various aspects of air traffic operations, such as situational awareness and safety, its unique ability to track non-transponder-equipped aircraft sets it apart as an essential tool in the air traffic control system.