What two things are required for a positive transfer of aircraft control?

For a positive transfer of aircraft control, it is imperative that both verbal affirmation and a clear physical action indicating the transfer, such as shaking the control stick, be utilized. This process ensures that both pilots understand the transfer has taken place, minimizing the risk of miscommunication or confusion during flight operations.

Verbal affirmation acts as a clear communication method to indicate who is in control of the aircraft, while the physical act of shaking the stick visually confirms the transfer, reinforcing the verbal message. This dual method provides redundancy in communication, which is crucial in aviation to maintain safety and clarity. The use of verbal and physical signals together helps ensure that both pilots are fully aware of their responsibilities, especially in critical situations.

Other options may mention various forms of communication or documentation, but they do not incorporate the combination of verbal affirmation and a physical action, which is essential for a successful and clear handoff of control.