FM-3-09 Fire Support and Field Artillery Operations Download
Page 177 of 256
Fire Support Coordination Measures 30 April 2020 FM 3-09 B-9 B-27. A maneuver BN or higher echelon normally establishes a RFA. Usually, the RFA is located on identifiable terrain, by grid, or by a radius from a center point. To facilitate rapidly changing operations, on- call RFAs may be used. The dimensions, locations, and restrictions of the on-call RFAs are prearranged. B-28. A RFA is graphically portrayed with solid black line defining the area and the letters "RFA" within, followed by the establishing HQ and the effective date-time group provides graphic portrayal of the RFA. (See figure B-7). The restrictions may be included within the graphic if space allows, or reference may be made to a specific OPORD or OPLAN (ADP 1-02). For example, a commander may identify a particular type of ammunition to preclude its firing within the RFA. Figure B-7. Restrictive fire area example RESTRICTIVE FIRE LINE B-29. A restrictive fire line is a specific boundary established between converging, friendly surface forces that prohibits fires or their effects from crossing. (JP 3-09). B-30. The purpose of the RFL is to prevent fratricide and duplication of engagements by converging friendly forces. B-31. A RFL (see figure B-8 on page B-10) is graphically portrayed by a solid black line, with "RFL" followed by the establishing HQ above the line and the effective date-time group below the line. B-32. The commander common to the converging forces establishes the RFL. It is located on identifiable terrain when possible. In link-up operations, it is usually closer to the stationary force to allow maximum freedom of action for the maneuver and fire support of the linkup force.