ATP-3-09-30 Observed Fires Download

Chapter 1 1-8 ATP 3-09.30 28 September 2017 1-31. When the adversary initiates the final assault into a defensive position, the defending unit initiates its FPFs to kill adversary forces and suppress armored vehicles. Things to remember about an FPF:  Fire an FPF at the maximum rate of fire until told to stop, ammunition is exhausted, or the firing unit must move.  The Brigade commander normally allocates field artillery FPFs to the battalion, which may allocate FPFs to company or troop level.  The Battalion commander normally allocates heavy mortar FPFs to company or troop level.  The authority to shoot an FPF belongs to the lowest maneuver commander in whose area the FPF is placed or his authorized representative.  The company or troop FIST has the responsibility to adjust in the FPF when the tactical situation dictates.  Cancel the FPF when it is no longer required. 1-32. Table 1-1 provides information necessary in planning FPFs. The FPF widths in Table 1-1 are neither precise nor restrictive. The sheaves can be adjusted (see Chapter 6 for sheaf descriptions) to cover the specific terrain on which the FPF is located. Table 1-1 is derived from data on the bursting diameter of rounds. The bursting diameter of a high explosive (HE) round is generally considered to be twice the distance from the point of impact at which the round will reliably place one lethal fragment per square meter of target. Table 1-1. FPF planning Size Number of tubes Approximate Length (meters) Approximate Width (meters) Mortars: 120-mm 4 300 75 120-mm 2 150 75 81-mm (M252) 4 200 50 81-mm (M252) 2 100 50 60-mm 2 60 30 Howitzers: 155-mm 8 400 50 155-mm 6 300 50 155-mm 4 200 50 155-mm 3 150 50 155-mm 2 100 50 105-mm 8 280 35 105-mm 6 210 35 105-mm 4 140 35 105-mm 3 105 35 105-mm 2 70 35 Legend. mm—millimeter SYMBOLS 1-33. Use standard symbols in the preparation of maps, charts, and overlays to identify targets by type— point, linear, rectangular, circular, FPF, or a target reference point. Figures 1-5 through 1-12 (pages 1-8 through 1-11) illustrate these target symbols. They are keyed to targets on the sample target list work sheet in figure 1-4. See ADRP 1-02 for details on graphic symbols. Note. DA Form 4655 (Target List Worksheet) facilitates fire planning. It is a preliminary list of targets and their descriptions. Fire support personnel recommend targets be added to the fire support plan for the commander’s approval.