When observing target maneuvers, what degree of turn must an aircraft make for identification purposes?

In radar operations and target identification processes, an aircraft must execute a turn of 30 degrees or more to provide clear and recognizable changes in its track that can aid in identifying the type of aircraft or its intentions. A 30-degree turn generates a significant shift in the target's heading, making it easier for radar operators to assess the maneuverability of the aircraft and distinguish it from other targets in the vicinity.

This degree of turn enhances the visibility of the aircraft's movement on radar displays, confirming its flight path and allowing operators to gather more information about its speed, altitude, and potential classification, especially when distinguishing between military and civilian aircraft. Smaller turns, such as 15 degrees, may not create enough deviation from the original track to be reliably observed and analyzed.