What type of flag should be flown for flight operations?

The "F" flag is used to indicate that flight operations are in progress. This flag signifies to all personnel within the vicinity that aircraft activities are being conducted, which encompasses launching and recovering aircraft. It serves as a critical safety measure, informing anyone nearby of the heightened risk and presence of aircraft operations.

When the "F" flag is displayed, it also implies that personnel should remain alert and vigilant regarding air operations, ensuring both safety and security in the area. Recognizing this flag is essential for enhancing awareness and promoting safety during flight operations on naval vessels.