ATP-3-09-30 Observed Fires Download
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Call For Fire 28 September 2017 ATP 3-09.30 4-5 METHOD OF ENGAGEMENT 4-30. The observer may indicate how to attack the target. This element consists of the type of adjustment, trajectory, ammunition, and distribution. DANGER CLOSE and MARK are included as appropriate. Type of Adjustment 4-31. Two types of adjustment may be employed—area and precision. Unless precision is specified, area fire will be used. Area Fire 4-32. Use area fire to attack an area target. Since many area targets are mobile, the adjustment should be as quick as possible, consistent with accuracy, to keep the target from escaping. A well-defined point at or near the center of the area to be attacked should be selected and used as an aiming point. This point is called the adjusting point during adjust fire missions. To achieve surprise, adjust fire on an auxiliary adjusting point, and after adjustment is completed, shift the fire for effect to the target. Normally, observers conduct adjustment on an area target with one adjusting weapon. Precision Fire 4-33. Conduct precision fire with one weapon on a point target to obtain registration corrections or to destroy the target. When the mission is a registration, the FDC initiates it with a message to observer. If the intent is to destroy the target, the observer announces DESTRUCTION. Danger Close 4-34. DANGER CLOSE is included in the method of engagement when the target is (or rounds will impact) within 600 meters of any friendly troops for mortars and artillery, 750 meters for 5 inch naval guns and tomahawk land attack missile (also TLAM). DANGER CLOSE and risk estimate distances are different in meaning. Risk estimate distances can be referenced in ATP 3-09.32. Mark 4-35. MARK is included in the method of engagement to indicate that the observer is going to call for rounds for either of the following reasons: To orient self in the zone of observation. To indicate targets to ground troops, aircraft, or other observers. Trajectory 4-36. The trajectory is the path traced by the center of gravity of the projectile from the origin to the level point. Low Angle 4-37. Standard without request. High Angle 4-38. High-angle fire is the delivery of fire at elevations greater than the elevation of maximum range of the charge. Range decreases as the angle of elevation increases (TC 3-09.81). Mortars fire only high-angle. See chapter 7 for a more detail description of high-angle fire. Ammunition 4-39. The observer may request any type of ammunition during the adjustment or the fire for effect phase of his mission. Use a high explosive (HE) projectile with a mechanical time super quick (MTSQ) fuze for normal adjustment. If that is what the observer desires, it is not necessary to request it in the call for fire. If