What action is not permitted when the wingman is saturated with flight tasks?

When the wingman is saturated with flight tasks, providing a frequency change is not permitted because it adds an additional workload that can overwhelm their capacity to manage current tasks. The primary goal in a flight operation is to ensure that all pilots can maintain situational awareness and respond effectively to dynamic conditions.

The other options, such as communicating maneuvering directions, calling "knock-it-off," or releasing control of the aircraft, are designed to help manage the situation and ensure safety. Communicating maneuvering directions is essential for safe coordination between flight members, while calling "knock-it-off" serves as a critical safety protocol to terminate a maneuver when required. Releasing control of the aircraft might provide relief and allow the wingman to focus on their immediate tasks. Therefore, avoiding an unnecessary frequency change helps ensure that the wingman can concentrate on essential flight operations without distraction or confusion.