When telephoning a weather briefing facility for preflight weather information, what should pilots state?

When contacting a weather briefing facility for preflight weather information, it is essential for pilots to clearly state the aircraft identification or their name. This identification helps the briefing facility to quickly locate the appropriate information relevant to the specific flight, thereby ensuring that the pilot receives the most accurate and personalized weather briefing.

Providing the aircraft identification or the pilot's name establishes a clear line of communication and facilitates the sharing of essential details tailored to the specific needs of the flight. It allows the personnel at the briefing facility to verify any previous briefings and ensure that the pilot is informed about the latest weather conditions that might affect their flight.

Other options, while relevant to the flight overall, do not serve as primary identification for the weather briefing process. True airspeed, fuel on board, and route of flight may be important factors to consider for flight planning, but they do not replace the need for establishing who the pilot is or what aircraft is involved, which is paramount for effective communication and data retrieval during the weather briefing.