Constructing a Map for the Range.

TM 9-6920-361-13&P

(3) The grid lines on the special map are

2-3. Constructing a Map for the Range.

scaled to 100 meters (1,000 decimeters) apart so the

observer can use the normal observed fire (OF) fan and

a. Maps

for

Permanent

and

Semipermanent

the coordinate scale that he would use with a1:50,000

Ranges.

map.

(1) For permanent

and

semipermanent

ranges a 1:5,000 scale map of the impact area should be

constructed. Most training aids centers can enlarge a

portion of a map in order to create the required scale.

Figure 2-12 shows a type 1:5,000 scale map of 800

meters by 1,100 meters section of a range at Fort Sill,

Okla. The map shows the contour lines and terrain

features shown on the original map.

Figure 2-13. Labeling the special map

(4) When labeling the grid lines on the special

map use the 100 meter value. For example, if you are

preparing a map of the area which is located in the

shaded square of a 1:50,000 map, you would label the

Figure 2-12. Example of a 14.5-mm range map

grid lines of the special map as shown in figure 2-13,

leaving off the 10,000 meter digit and adding the 100

(2) After the roads, buildings, and other

meter digit.

constructed terrain features (such as small mounds or

b. Maps for a Temporary) Range.

orchards) have been positioned and accurately located

(1) Since a temporary range may be available

by survey, they are included on the map. The map need

to a unit for only one or two days, it is not practical to

not be in color if the terrain is fairly level and there are

construct an elaborate range map. Therefore, the unit

few contour lines. However, there should be sufficient

may begin the service practice by constructing an

information on buildings, roads, orchards, etc., to permit

observed fire (OF) chart and then convert to a surveyed

the observer to locate targets in relation to a known point

firing chart when survey is completed.

that he can identify on the ground and on the map.

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