ATP-3-09-30 Observed Fires Download

Chapter 6 6-4 ATP 3-09.30 28 September 2017 6-14. In order for the autonomous flight and fuze control to function properly, operators must input mission and GPS data from a fire control computer into the round using a setting device. 6-15. The characteristics of the APMI and the call for fire are similar to the Excalibur CFF. Table 6-4 on page 6-4 provides an example APMI call for fire. Table 6-4. Fire for effect with APMI Observer Fire Direction Center P51 THIS IS P87, FIRE FOR EFFECT, OVER. P87 THIS IS P51, FIRE FOR EFFECT, OUT. GRID NK36654237 ALTITUDE 345, OVER. GRID NK36654237 ALTITUDE 345, OUT. IED EMPLACERS IN THE OPEN, APMI, OVER. IED EMPLACERS IN THE OPEN, APMI, OUT. Legend. APMI – Accelerated Precision Mortar Initiative CHARACTERISTICS OF THE PRECISION GUIDANCE KIT 6-16. The M1156 Precision Guidance Kit (PGK) is an inductively set GPS-guided fuze. PGK is set using the M1155 Enhanced Portable Inductive Artillery Fuze Setter (EPIAFS) to transfer power and initialization data (GPS data, satellite data, gun and target locations, fuze mode, and trajectory algorithms). The PGK- fuzed round is fired along a computed reference trajectory. As the round travels along its ascending branch it acquires GPS and begins guidance at apogee. As the round drifts onto a ballistic trajectory, canards on the fuze correct the projectile’s flight in range and deflection back to the reference trajectory to guide the round the programmed target grid. It is essential that the unit meet the five requirements for accurate fire in order to compute the correct reference trajectory and put PGK within it maneuver authority relative to the target. PGK has a ≤ 50m CEP and is authorized fire use on the M795 HE and M549A1 HERA projectiles fired from the M777A2 and M109A6 Paladin. The M1156 PGK has two fuze modes, point detonating (PD), and proximity (PROX). 6-17. PGK provides a precision capability that gives the maneuver commander an increased capability to create effects with HE projectiles from 13km out to the maximum range of the projectile. PGK can be employed at ranges of 8km and beyond, however, at these shorter ranges, due to inherent CEP of conventional munitions, PGK may not provide any increase in accuracy. This is contributed to the ≤50 meter CEP at all ranges with a PGK fuzed projectile allowing for the greater efficiency of the rounds fired. This increased efficiency means fewer rounds to create the desired effects on the target. It will allow commanders to shape tactical engagements, mass effects to support maneuver and lessen over reliance on direct fires. At unit and Soldier level, PGK will be used in much the same manner as current cannon fuzes and its employment will be almost seamless since it uses the same procedures in place today. 6-18. The changes to the standard CFF request format include requesting PGK as the fuze type and reporting TLE in the target location portion of the CFF. If the observer does not include the TLE in the CFF request, the FDC will then prompt the observer to provide TLE, if available. CHARACTERISTICS OF THE GUIDED MLRS 6-19. The M30 Guided Multiple Launch Rocket System (GMLRS) integrates a GPS aided inertial guidance and control package into a dual purpose improved conventional munitions (DPICM) Multiple Launch Rocket System (MLRS). Unlike the traditional free flight M26 series rockets, whose accuracy degrades as the range to the target increases, the GMLRS provides consistent improved accuracy from a 15 kilometer minimum range to a maximum range of 70+ kilometers. Improvements in accuracy increase lethality, while reducing rocket expenditures and reducing the risk of collateral damage that is normally associated with free flight munitions. Each M30 GMLRS rocket contains 404 M101 sub munitions effective against personnel and soft to lightly armored targets.