When should arrival information be forwarded to a VFR Tower?

Forwarding arrival information to a VFR Tower should occur soon enough to allow for adjustments to the traffic flow. This proactive approach enables air traffic controllers to manage and sequence incoming air traffic effectively, reducing potential conflicts and enhancing safety in the airspace. By providing this information ahead of time, controllers can prioritize landing sequences and coordinate with other arriving or departing aircraft.

The other choices reflect actions that may not provide sufficient time for traffic management. For instance, forwarding information immediately after takeoff or only after the aircraft enters the airspace might lead to congestion or delays, as the controller may not have enough time to react to the incoming traffic. Providing arrival information at the time of landing would also be too late for proper sequencing and organization of traffic, which could compromise safety and efficiency in the VFR environment.