World aeronautical chart

A World Aeronautical Chart (WAC) is a type of aeronautical chart used for navigation by pilots of moderate speed aircraft and aircraft at high altitudes. They are at a scale of 1:1,000,000 (about 1 inch = 13.7 nautical miles or 16 statute miles).

These charts are similar to sectional charts, and the symbols are the same. However, there is less detail at the smaller scale, so it is seldom used for visual flight rules flight at slower speeds or for local flights. WACs show topographic information, airports and radio navigational aids. They are useful for strategic flight planning, where a view of the entire flight area is useful.