Which is the military protractor GTA 5-2-12? Using your pencil, make a small tick mark on the map at the edge of the protractor at the desired azimuth. Place your protractor on the map with the index mark at the center of the known point and the base line parallel to a vertical, north-south grid line. The 0- or 360-degree mark is always toward the top or north on the map and the 90° mark is to the right.ġ. When using the protractor, the base line is always oriented parallel to a north-south grid line. Which is the correct direction for a military protractor? Mark on the protractor and read to the right (clockwise) until you reach the point where the azimuth line crosses the scale (s) of the protractor. How to find the azimuth line in a protractor? That is the bottom left corner of the grid square that we’ll be working with. Follow the lines to where they intersect. Look at the side of your map at the northing number and move up until you find the 95 grid line. Look at the top of your map at the easting numbers, and move right until you find the 30 grid line. A protractor is used to measure the angle between grid north and the drawn line, and this measured azimuth is the grid azimuth (Figure 6-4). When an azimuth is plotted on a map between point A (starting point) and point B (ending point), the points are joined together by a straight line. The general rule of military map reading is “right and up,” which means you read a military map to the right of each left border and upward from each bottom border. ![]() When reading a military map, use the number along the left border of each grid square as your starting point then read the number along the bottom border. What is the general rule for reading military grid coordinates? How many scales are on a military protractor?Īround the edge of the protractor there are three scales the outer is marked in mils, the centre is marked in degrees and the inner is marked in black azimuths. The terms azimuth and direction are interchangeable. Now you must determine the grid azimuth of that line-the angle between the line and grid north. Using the edge of your protractor, draw a straight pencil line between points A and B.
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