ATP-3-09-30 Observed Fires Download

Call For Fire 28 September 2017 ATP 3-09.30 4-3 SIZE OF ELEMENT TO FIRE FOR EFFECT 4-16. The observer may request the size of the unit to fire for effect, for example, BATTALION. Usually this is done by announcing the last letter in the battalion FDC's call sign. For example, T6H24 is announced HOTEL. The observer should never refer to a battery or other unit in the clear; but should refer to it by call sign. Secure communication devices allow units to use plain language call signs. Use the plain language call sign in such a case to designate the unit to fire for effect. For example, Alpha Battery’s call sign is Thunder. 4-17. Although the observer may request a size of element to fire for effect, the fire direction center will make the ultimate decision based on the attack guidance received, Joint Munitions Effectiveness Manuals Weaponeering System (JWS) solution, and the rules of engagement that are in effect. METHOD OF TARGET LOCATION 4-18. Methods of target location include grid, laser grid, polar plot, laser polar, and shift from a known point. When utilizing precision targeting devices, it is required to transmit target location error (TLE) in the target location portion of the call for fire request. Grid 4-19. The observer sends the most accurate target location possible. The minimum acceptable standard is a six digit grid when calling for fire on a map spotted target location. Send a minimum eight or ten digit grid location for registration points or other points for which greater accuracy is required. Altitude is included immediately after the grid. The observer-target direction is normally sent after the entire initial call for fire, since the FDC does not need the direction to locate the target. 4-20. Grid is the standard method of target location and when used is not announced in the warning order. Laser Grid 4-21. A laser grid mission is the same as a grid mission with the following exceptions:  Send target grid to a greater level of precision (8 or 10 digit grid depending on observer or observation post location error).  In an adjust fire mission, corrections are sent in the form of a grid to the burst location. 4-22. The observer announces LASER GRID, for example FIRE FOR EFFECT, LASER GRID, OVER. After the read back by the FDC, the forward observer announces the grid and altitude as normal, followed by the TLE if known. For example; GRID ND1234567890, ALTITUDE 390 M HAE, TLE 2.9 OVER. Note. A mission is not a laser grid mission just because the observer used a laser to determine the initial target location. If the observer plans to send normal left, right, add, or drop corrections, the mission is a normal grid mission. The mission is a laser grid mission only when the method for subsequent corrections are lase burst corrections. Polar Plot 4-23. In a polar plot mission, the word polar in the warning order alerts the FDC that the target will be located with respect to the observer's position. The FDC must know the observer's location. The observer then sends the direction and distance. A vertical shift tells the FDC how far, in meters, the target is located above or below the observer's location. Vertical shift may also be described by a vertical angle in mils, relative to the observer's location. 4-24. The observer announces POLAR. For example, ADJUST FIRE POLAR, OVER. Laser Polar 4-25. Laser polar differs from a polar mission in that laser data is sent to the nearest one mil for direction (instead of the normal 10 mils) vertical angle and the nearest 10 meters for distance.