If a radar display shows a non-radar identified aircraft at less than 40 miles, what is the distance from the radar display for separation?

The correct answer indicates that the required separation distance from a non-radar identified aircraft shown on a radar display is 6 miles when that aircraft is located at less than 40 miles from the radar station. This requirement stems from air traffic control protocols aimed at ensuring sufficient distance to prevent potential collisions or unsafe proximity between aircraft.

In the context of air traffic management, the ability to effectively separate aircraft is crucial for maintaining safety in busy airspace. Non-radar identified aircraft, which are not actively monitored through radar systems, require a more cautious approach to separation due to the lack of real-time positional data that radar provides. Therefore, the specified distance of 6 miles serves as a buffer to account for the uncertainties in the aircraft's exact location and trajectory.

As a matter of practice, the separation distances may vary based on the type and operational status of the aircraft, but for non-radar identified aircraft under the specified conditions, 6 miles is established as the minimum safe distance. This standard helps air traffic controllers manage safe and efficient airspace use, especially when dealing with unidentified or uncertain flight paths within a critical range.