SUBCOURSE EDITION - Modern Prepper

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c. When determining the number of grid lines needed for a grid, these partial grid lines must betaken into consideration. The exact number of grid lines can be computed from DA Form 1941, (seeSoldier's Manual Task: 051-257-1203, Construct Map Grids), but since this is rather complicated, thismethod has been omitted. The easiest way to determine the number of grid lines needed is todetermine the difference between the first full easting and northing grid lines and add four extra gridlines. The following example problem shows how this is done. Determine the number of grid linesneeded when the first full grid lines are as follows:west edge - 283east edge - 303north edge - 4291south edge - 4265Adding four grid lines allows for two extra grid lines on each side of the grid. This will always beenough grid lines to construct a grid. If either of the values is an odd number, add one more grid lineto make it even. This will make all your measurements easier when you construct the grid in Lesson 2.Therefore, the total number of grid lines needed to construct the grid for the DA Form 1941 in figure 1-1 is 24 easting grid lines and 30 northing grid lines.9
5. Before you take the written test for Lesson 1 (at the end of this subcourse), you should practicewhat you have just learned, by working through the review exercises on the next page.10
Page 1 and 2: SUBCOURSEEDITIONEN5302 6US ARMY ENG
Page 3 and 4: PAGELESSON 5 - GEODETIC CONTROL....
Page 5 and 6: GRADING AND CERTIFICATION INSTRUCTI
Page 7: INSTRUCTIONAL CONTENT1. During your
Page 10 and 11: Figure 1-2. DA Form 1941 heading.b.
Page 12 and 13: d. Grid Size (fig 1-4). Now that yo
Page 16 and 17: REVIEW EXERCISESNow that you have w
Page 18 and 19: Figure 1-5. Completed DA Form 1941.
Page 20 and 21: EXERCISE SOLUTIONS1. C, 125 (para 3
Page 22 and 23: INSTRUCTIONAL CONTENT1. Now that yo
Page 24 and 25: Step 3: Determine the approximate c
Page 26 and 27: Figure 2-5. Swing centerline arc.d.
Page 28 and 29: 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 62 and 63: LESSON EXERCISE RESPONSE SHEET1. __
Page 64 and 65:
LESSON 4 - MAP PROJECTION CONSTRUCT
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68Figure 4-1. DA Form 1941 (Virgini
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corner, you always plot the distanc
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Step 4: The intersections formed by
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Step 6: The intersections formed by
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Figure 4-11. DA Form 1932.Step 3: E
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Refer to the DA Form 1932 (fig 4-12
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Step 6: Graticule ticks are plotted
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The intersections formed by the 1.2
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Step 2: Drafting graticule ticks (f
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REVIEW EXERCISESNow that you have w
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Figure 4-22. DA Form 1941 (Ft. Belv
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Figure 4-23. DA Form 1932 (cont).91
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EXERCISE SOLUTIONS1. B, 0872 (para
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INSTRUCTIONAL CONTENT1. The term "c
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Figure 5-2. Heading information of
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Figure 5-5. Bottom of DA Form 1959
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4. What are the centimeter plotting
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LESSON EXERCISE RESPONSE SHEET1. __
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LESSON 6 - PLOTTING GEODETIC CONTRO
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112Figure 6-1. Completed DA Form 19
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Step 3: Plot the easting value of t
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Step 7: Connect these two arcs with
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REVIEW EXERCISESNow that you have w
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Figure 6-10. Completed DA Form 1959
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LESSON EXERCISE RESPONSE SHEET1. __
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Note: The following material is an
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d. Although Greenwich, England, is
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(3) Lambert Conformal Conic Project
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4-7. Identification of ControlIn or
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For example, if one end of the comp
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horizontal lines, and then repeated
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. 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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