SUBCOURSE EDITION - Modern Prepper

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The intersections formed by the 1.200 centimeter arcs and grid lines are also connected with a lightconstruction line as shown in figure 4-18. This line establishes the northing coordinate of the graticuletick.Figure 4-18. Connecting points.Step 9: The intersection of the two light construction lines now locates the exact position of the 77°25'W 38' 45'N graticule intersection (fig 4-19). Mark this intersection with a very small pinprick anderase all construction lines and arcs used to locate the corner.Figure 4-19. Graticule intersections.82
Step 10: Now, proceed to the other graticule intersections and plot their locations. Alwaysremember to plot the given measurements from the grid lines shown on DA Form 1932 and always plotfrom these grid lines toward the next higher grid line. Once all the graticule ticks and intersections havebeen plotted from DA Form 1932, you will have points that fall between each of the four corners and inthe interior of the grid. These points represent the graticule ticks and intersections along the map neatlines and the interior crosses.4. Drafting and labeling the projection. The hardest part of constructing map projections is nowcomplete. The remaining steps are relatively simple and involve symbolizing and labeling the projection.These steps are outlined and explained as follows:Step 1: Construct neat lines by connecting the projection corners and graticule intersections withstraight lines (fig 4-20). Seams simple enough! Using your straightedge and sharp 5-H pencil, connectthe plotted projection corners and graticule ticks with straight lines. If everything has been correctlyplotted, the graticule intersections on the east and west edges will be in a straight line between the northand south corners. The north and south neat lines will form parallel curves.Figure 4-20. Neat line with grid and graticule ticks.83
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SUBCOURSEEDITIONEN5302 6US ARMY ENG
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PAGELESSON 5 - GEODETIC CONTROL....
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GRADING AND CERTIFICATION INSTRUCTI
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INSTRUCTIONAL CONTENT1. During your
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Figure 1-2. DA Form 1941 heading.b.
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d. Grid Size (fig 1-4). Now that yo
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c. When determining the number of g
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REVIEW EXERCISESNow that you have w
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Figure 1-5. Completed DA Form 1941.
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EXERCISE SOLUTIONS1. C, 125 (para 3
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INSTRUCTIONAL CONTENT1. Now that yo
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Step 3: Determine the approximate c
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Figure 2-5. Swing centerline arc.d.
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Divide the results by 2:of the grid
Page 30 and 31: Step 10: Construct the four corners
Page 32 and 33: a. Using the invar scale and beam c
Page 34 and 35: Step 14: Set the dividers or compas
Page 36 and 37: Figure 2-19. Grid labels.This compl
Page 38 and 39: 4. You have found the center of the
Page 40 and 41: LESSON EXERCISE RESPONSE SHEET1. __
Page 42 and 43: LESSON 3 - PROJECTION COMPUTATIONSO
Page 44 and 45: 44Figure 3-1. Completed DA Form 194
Page 46 and 47: (3) The equivalent UTM grid values
Page 48 and 49: Figure 3-4a. Southwest corner.Figur
Page 50 and 51: 50Figure 3-6. DA Form 1932.
Page 52 and 53: a. Heading (fig 3-7). The heading i
Page 54 and 55: 54Figure 3-9. Line showing 38° 30'
Page 56 and 57: (10) The graticule tick 38° 30'W l
Page 58 and 59: 58Figure 3-12. DA Form 1941 (Phoeni
Page 60 and 61: 60Figure 3-13. DA Form 1932 (Phoeni
Page 64 and 65: LESSON 4 - MAP PROJECTION CONSTRUCT
Page 66 and 67: 68Figure 4-1. DA Form 1941 (Virgini
Page 68 and 69: corner, you always plot the distanc
Page 70 and 71: Step 4: The intersections formed by
Page 72 and 73: Step 6: The intersections formed by
Page 74 and 75: Figure 4-11. DA Form 1932.Step 3: E
Page 76 and 77: Refer to the DA Form 1932 (fig 4-12
Page 78 and 79: Step 6: Graticule ticks are plotted
Page 82 and 83: Step 2: Drafting graticule ticks (f
Page 84 and 85: REVIEW EXERCISESNow that you have w
Page 86 and 87: Figure 4-22. DA Form 1941 (Ft. Belv
Page 88 and 89: Figure 4-23. DA Form 1932 (cont).91
Page 90 and 91: EXERCISE SOLUTIONS1. B, 0872 (para
Page 92 and 93: INSTRUCTIONAL CONTENT1. The term "c
Page 94 and 95: Figure 5-2. Heading information of
Page 96 and 97: Figure 5-5. Bottom of DA Form 1959
Page 98 and 99: 4. What are the centimeter plotting
Page 102 and 103: LESSON 6 - PLOTTING GEODETIC CONTRO
Page 104 and 105: 112Figure 6-1. Completed DA Form 19
Page 106 and 107: Step 3: Plot the easting value of t
Page 108 and 109: Step 7: Connect these two arcs with
Page 110 and 111: REVIEW EXERCISESNow that you have w
Page 112 and 113: Figure 6-10. Completed DA Form 1959
Page 116 and 117: Note: The following material is an
Page 118 and 119: d. Although Greenwich, England, is
Page 120 and 121: (3) Lambert Conformal Conic Project
Page 122 and 123: 4-7. Identification of ControlIn or
Page 124 and 125: For example, if one end of the comp
Page 126 and 127: horizontal lines, and then repeated
Page 128 and 129: . To plot the geographic coordinate
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(1) First, determine the correct sp
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(5) Note that for each 5 minutes of
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4-13. Plotting Positions of Control
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5. What is the value of the first f
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PART II - CONSTRUCT MAP PROJECTIONR
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Requirement: Questions 16 through 2
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20. Refer to question 19. From whic
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154Figure 3. Completed DA Form 1959
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LEAVENWORTHU.S. GOVERNMENT PRINTING
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SUBCOURSE EDITION - Modern Prepper

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