ATP-3-09-30 Observed Fires Download
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Chapter 4 4-4 ATP 3-09.30 28 September 2017 4-26. The observer announces LASER POLAR. For example, ADJUST FIRE, LASER POLAR, OVER. Shift from a Known Point 4-27. In a shift from a known point mission, (see figure 4-1) the target will be located in relation to a pre- existing known point or recorded target. In the warning order, identify the point or target from which to shift. (The observer and the FDC must know the location of the point or recorded target.) The observer then sends the observer-target direction. Normally, mils are the preferred unit of measure for a shift. However, the FDC can accept degrees or cardinal directions, whichever the observer specifies. The corrections are sent next: Lateral shift in meters (how far left or right the target is) from the known point. Range shift (how much farther [ADD] or close [DROP] the target is in relation to the known point, to the nearest 100 meters). Vertical shift (how much the altitude of the target is above [UP] or below [DOWN] the altitude of the known point, expressed to the nearest 5 meters). Vertical shift is usually only significant if it is greater than or equal to 35 meters. 4-28. The observer announces SHIFT, followed by the designation of the known point or by the target number. For example, ADJUST FIRE, SHIFT KNOWN POINT 1, OVER. Figure 4-1. Shift from a known point TARGET DESCRIPTION 4-29. The observer must describe the target in enough detail that the FDC can determine the amount and type of ammunition to use. The FDC selects different ammunition for different types of targets. The observer should be brief but accurate. The description should contain the following: What the target is (troops, equipment, supply depot, trucks). What the target is doing (digging in, in an assembly area). The number of elements in the target (squad, platoon, three trucks, six tanks). The degree of protection (in the open, in foxholes, in bunkers with overhead protection). The target size and shape if these are significant. For a rectangular target, give the length and width (in meters) and the attitude. For example, 400 BY 300, ATTITUDE 2800. For a circular target, give the radius. For example, RADIUS 200. For a linear target, give the length and attitude. Note. In AFATDS the requirements for linear targets are the center grid, distance from center point, and attitude. It is the FDCs responsibility to ensure the data obtained from the observer is entered correctly.