Topographic maps and sketch mapping . You are in Hunterstown (D-5) for a half-hour stop and expect enemy from west. Where do you put lookouts? 6. You are marching southwest from Plainview (B-5). Where do you send patrols if enemy is expected from west? 7. Do you send a separate patrol to each hill? 8. Enemy has artillery at Biglerville (B-8) and holds line of Conewago. You are told to take a company from Goldenville (D-8) to Texas(C-8). Describe route? 9. You are at cross-road 600 (B-7). You are ordered to go in daylight to Center Mills (A-7) without being seen. Describe route? Art. 16. Visibi
Topographic maps and sketch mapping . You are in Hunterstown (D-5) for a half-hour stop and expect enemy from west. Where do you put lookouts? 6. You are marching southwest from Plainview (B-5). Where do you send patrols if enemy is expected from west? 7. Do you send a separate patrol to each hill? 8. Enemy has artillery at Biglerville (B-8) and holds line of Conewago. You are told to take a company from Goldenville (D-8) to Texas(C-8). Describe route? 9. You are at cross-road 600 (B-7). You are ordered to go in daylight to Center Mills (A-7) without being seen. Describe route? Art. 16. Visibility of Areas Fig. 38 is identical with Fig. 13 except that a portion ofthe upper part of the map has been shaded. This shadedportion is ground that is not visible to an observer stationedat the point A, that is, it is dead ground. It requires time andpatience to work out on a map and show in this way the areasvisible or not visible from a given point, but such a problemis an excellent study in contours and the visualization of the. FIG. 38. SHOWING AREA VISIBLE FROM POINT OF OBSERVATION AT A. VISIBILITY OF AREAS 67 relief. The result is of value in military work in planningattacks or troop movements, so as to take advantage of coverand in such work as locating observation stations, etc. Inartillery work it is desirable to work out on a map in this waythe dead ground in front of an artillery position and placethe various batteries so as to effectively cover the entire the case of artillery fire it is necessary to allow for thecurving trajectory of the projectile and large areas thatare not visible to the eye can of course be reached by theguns. The problem of working out the visible area is simply theapplication of the principles of Art. 15 to an area rather than
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectcartogr, bookyear1920
