What is the maximum separation allowed before the in-element turns hot in Grinder Ops?

The correct choice regarding the maximum separation allowed before the in-element turns hot in Grinder Ops is indeed the range of 20-25 NM. In Grinder Operations, maintaining appropriate separation is crucial to ensure that the aircraft can effectively engage in combat operations while adhering to safety and tactical considerations.

The 20-25 NM separation is a threshold that allows for the coordination of engagements and facilitates the timely response of elements involved in operations without compromising the opportunities for initiating contact with adversaries. This distance provides sufficient space for situational awareness, effective communication, and tactical maneuvering among the aircraft, ensuring that they maintain the advantage without being overly stretched which could lead to vulnerabilities.

In contrast, the other ranges listed either fall short or exceed the optimal separation distance needed for the dynamics of Grinder Ops, potentially affecting operational effectiveness and safety in combat scenarios. By adhering to the correct separation distance, pilots can ensure that they are within effective operating parameters during engagements while maximizing their tactical effectiveness.