Summary: | Various editions. World aeronautical map series. Sheets numbered using World Aeronautical Chart (WAC) series numbering from 1 (North Pole) to 1851 (South Pole), subdivided into 16 by letters (A to D) then numbers (1 to 4) of: e.g. Darwin, Australia = 1109A2.; Series replaced in 1960s by series 1501, Joint Operations Graphic (Air).; Relief shown by contours, gradient tints, shading and spot heights.; Location map, data, and legend on verso. AAF Aeronautical Approach Chart Army Air Force Aeronautical Approach Chart
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