What symbol is used to designate prohibited areas on aeronautical charts?

The symbol that designates prohibited areas on aeronautical charts is represented by a letter "P". Prohibited areas indicate airspace where the flight of aircraft is strictly forbidden, typically due to national security considerations or safety concerns. These areas are often associated with sensitive installations or operations that require complete exclusion of airborne traffic.

Understanding the designation of aeronautical symbols is crucial for UAV pilots to ensure safe operation and compliance with regulations. Familiarity with specific symbols, such as the "P" for prohibited areas, allows pilots to quickly identify restricted zones on charts, leading to informed flight planning and adherence to airspace regulations. This knowledge is essential for maintaining safety and legality in unmanned aircraft operations.