Each 100-meter block has five graduations, each equal to 20 meters. The 1:25,000 scale subdivides the 1,000-meter grid block into 10 major subdivisions, each equal to 100 meters. GTA 5-2-12, 1981, contains four types of coordinate When used correctly, it presents less chance for making errors. The grid coordinate scale divides the grid square more accurately than can be done by estimation, and the results are more consistent. The primary tool for plotting grid coordinates is the grid coordinate scale. The principal digits, 89, identify the line for referencing points in the easterly direction Therefore, the first grid line east of the south-west corner is labeled 689000m E. The last three digits, 000, of the value are omitted. The smaller digits, 35, are part of the false coordinates and are rarely used. The principal digits, 70, identify the line for referencing points in the northerly direction. This means its false northing (distance north of the equator) is 3,570,000 meters. : The first grid line north of the south-west corner of the Columbus map is labeled 3570000m N. Military Graphic Training Aid Coordinate Grid Reader & Protractor, GTA Printed on 30 mil plastic stock with a protective coating - Clear Lexan Plastic hard to scratchģ scales: 1:25,000 x 1km/1:250,000 x 10km 1:50,000 x 1km 1:100,000 x 1km Order one for yourself or thousands for your unit today! Features & details Find 4, 6, and 8 digit grid coordinates using the UTM or MGRS, find aziumths, measure straight and road distances, and much, much more. The map protractor is a great tool for anyone using topographic maps.

1 50000 scale military map protractor