SUBCOURSE EDITION - Modern Prepper

Step 6: Graticule ticks are plotted the same way that the projection corners were plotted. You willbegin with the westerly measurement which indicates that the projection tick must be plotted 1.966centimeters east of grid line 289. Remember that the measurement must be plotted from the 289 gridline because it is the grid line shown on DA Form 1932 for this particular graticule tick. Therefore,from the top two grid intersections (fig 4-15) on grid line 289, swing an arc 1.966 centimeters east of thisgrid line. Notice that these arcs are plotted from the 289 grid line toward the next higher easting gridline.Figure 4-15. Plotting 1.966 centimeters.Step 7: The intersections formed by the 1.966 centimeter arcs and grid lines are now connected witha light construction line (fig 4-16). This line determines the easting coordinate of the graticule tick andtells us that the graticule tick is located somewhere on this line. To determine the exact position, youmust now plot the northing measurement 1.200 centimeters as determined from DA Form 1932.80