What is the primary purpose of the Chart Supplement U.S.?

The primary purpose of the Chart Supplement U.S. is to provide comprehensive information on public airports. This resource contains essential details such as runway dimensions, communications information, services available at the airport, and other pertinent data necessary for pilots to operate safely and efficiently. It serves as a critical tool for flight planning and situational awareness, ensuring that pilots have access to the information needed for navigating different airspaces and proceeding with their flights effectively.

While other resources might contain information about private airfields or flight planning guidance, the Chart Supplement is specifically designed to focus on public airports, making it an invaluable asset for anyone flying in the national airspace system.