What altitude action is required during a "knock-it-off" call?

During a "knock-it-off" call, the primary action required is to climb or descend to a prebriefed safe altitude. This procedure is crucial for ensuring safety and maintaining clear situational awareness among all involved in the training or operational scenario. The call typically occurs in dynamic situations where the participants need to immediately disengage from an exercise or training profile due to safety concerns, loss of control, or other critical reasons.

Climbing or descending to a prebriefed safe altitude ensures that all aircraft involved have a controlled and safe environment while allowing for recovery, discussion of issues, or reassessment of the situation. This action helps prevent confusion and potential collisions, as all individuals have agreed on the appropriate altitude beforehand, promoting standardization and safety in flight operations.

While other options like landing immediately or maintaining current altitude could also suggest safety responses, they do not conform to the protocol that emphasizes the necessity of moving to a designated altitude to ensure safety across all participants.