What does the flag symbol at Lake Drummond represent?

The flag symbol at Lake Drummond serves as a visual checkpoint specifically for initial callup to Norfolk Approach control. This means that pilots can use the Lake Drummond flag as a reference point when they are preparing to communicate with Air Traffic Control (ATC) upon entering the Norfolk airspace. Visual checkpoints marked on charts are valuable tools for pilots as they provide a physical landmark that can enhance situational awareness and help streamline communications with approach control.

Using flag symbols in this context provides an efficient way for pilots to report their position, allowing for smoother traffic management and better integration into the airspace. Such landmarks simplify the process of identification and help both pilots and ATC ensure safety and coordination during approach procedures.