Can the transferring controller complete a radar handoff after the aircraft enters the receiving controller's airspace?

The situation regarding radar handoffs involves specific protocols to ensure safety and proper communication between controllers. A radar handoff is a transfer of responsibility for an aircraft from one controller to another and is crucial for maintaining separation and safety within airspace.

The correct answer indicates that a radar handoff must be completed before an aircraft enters the receiving controller's airspace. This is fundamental because once the aircraft is within the airspace of another controller, that controller assumes responsibility for the aircraft. Completing the handoff before entry ensures that the transferring controller has communicated all relevant information, established separation, and ensured that the receiving controller is prepared to take over responsibility for the aircraft.

If a handoff is attempted after the aircraft has already entered the new controller's airspace, it can lead to confusion, potential loss of separation, and miscommunication regarding the aircraft's status. This could result in an unsafe situation, making it critical that the transfer occurs prior to the aircraft's entry into the new airspace zone.

Thus, adhering to the protocol that the handoff must be completed beforehand is essential for maintaining safety, communication integrity, and efficient air traffic management.