World Aeronautical Chart. A series of charts covering the World at the scale of 1:1 000 000 for the purpose of aerial navigation. WACs are used for flight planning and in-flight navigation by VFR (Visual Flight Rules) pilots on extended cross country flight at medium to high altitudes and medium to high airspeed and as a base maps for the Digital Chart of the World (DCW). Canadian coverage (18 sheets) is produced by the Aeronautical Charts Service, Geomatics Canada, Natural Resources Canada. (See DCW -Digital Chart of the World)
These charts provide a standard series of aeronautical charts covering land areas of the world at a size and scale convenient for navigation by moderate speed aircraft. Topographic information includes cities and towns, principle roads, railroads, distinctive landmarks, drainage and relief. Aeronautical information includes visual and radio aids to navigation, airports, controlled airspace, restricted areas, obstructions, and pertinent data.