What does "Clean" indicate regarding a group of aircraft?

The term "Clean" in the context of aircraft typically indicates a state where no sensor information is available on a group of interest. This means that the aircraft is either not receiving data from its sensors or that the sensors are not detecting any relevant threats or targets.

This terminology is crucial for pilots and ground control, as it assists in situational awareness. Understanding that the aircraft is in a "Clean" state helps them to establish the current operational capability and readiness level. It suggests that the aircraft may not be engaged or is in a passive state, focusing on obtaining further data or preparing for subsequent actions.

In contrast, a group of aircraft being indicated as having separated from its formation or experiencing significant battle damage would reflect different operational statuses and readiness levels, highlighting the importance of terminology in military and tactical frameworks.