ATP-3-09-12 Field Artillery Counterfire and Weapons Locating Radar Operations Download
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Appendix E E-2 ATP 3-09.12 26 October 2021 E-6. Within the DIVARTY field maintenance is conducted by the WLR sections (operator maintenance) and by the maintenance platoon. Within the FA BN of the BCT, field maintenance is conducted by the WLR sections (operator maintenance) and by the forward support company. SUSTAINMENT MAINTENANCE E-7. Sustainment maintenance is off-system component repair and/or end item repair and return to the supply system or by exception to the owning unit, performed by national level maintenance providers. National level maintenance providers include the Army Materiel Command and installation directorate of logistics maintenance activities. The sustainment function can be employed at any point in the integrated logistics chain. The intent of this level is to perform commodity-oriented repairs to return items to a national standard, providing a consistent and measureable level of reliability and to execute maintenance actions not able to be performed at the field level of maintenance. REPAIR PARTS E-8. The logistics concept for WLR systems does not place any unusual demands on the supply system. The mandatory parts list governs the supply of WLR peculiar items. Each section deploys with its mandatory parts list. The supported unit provides common expendables and the parent unit forwards system-peculiar expendables to the section on an as required basis. SECURITY E-9. Because of its small size, the WLR section cannot provide for its own security in a tactical situation. For this reason, the WLR section must fall under the security of an adjacent unit or be augmented with personnel and weapon systems to provide security. The deployed WLR section falls under the responsibility of the supported unit for these functions. The TA platoon leader must work closely with the security force to integrate and employ inner or outer cordons as appropriate. The WLR section should include the designated security force in training events to identify integration requirements and communication plan. Units should develop their own security standard operating procedures based on METT-TC and their specific AO. The WLR should not be located with other friendly high-value targets. METEOROLOGICAL DATA E-10. MET data is crucial to hostile projectile acquisition and accuracy of friendly fire data. The MET parameters entered during WLR initialization affect radar performance by correcting for atmospheric refraction. MET parameters are also important in estimating the effect of wind direction and strength on the projectile's trajectory. However, the greatest effect on the accuracy of hostile and friendly weapon impact prediction is caused by wind. E-11. The line used from the computer MET must correspond to the same altitude as the line used from the TA MET. It is also necessary to determine the MET station altitude. This can be determined from the header line of either the TA MET or the computer MET. Station height in the header of both MET messages is entered in tens of meters and is equal to altitude.