ATP-3-09-30 Observed Fires Download
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Appendix A A-4 ATP 3-09.30 28 September 2017 Example The observer occupies a position and initially orients the laser rangefinder by using an M2 compass, then selects a reference point (HOUSE) and measures the azimuth to HOUSE as 5,796 mils. No known points are available, so the observer requests self-location using two bursting rounds. A24 (FDC) THIS IS A58 (OBS), SELF LOCATION, 2 ROUNDS, OVER. 1 ROUND, GRID NK603368, OVER. (Round is fired and observed.) DIRECTION 6398, DISTANCE 4110, VERTICAL ANGLE MINUS 9, 1 ROUND, GRID NK564381, OVER. (Round is fired and observed.) DIRECTION 5927, DISTANCE 3840, VERTICAL ANGLE MINUS 11, FIRST ROUND ON LEFT, OVER. The FDC determines and sends to the observer the laser rangefinder location and orienting azimuth to the second burst point. A58 (OBS) THIS IS A24 (FDC), LOCATION NK58723423, DIRECTION TO SECOND ROUND 5918, OVER. Having recorded the laser measured azimuth to the second burst point, the observer records the FDC reported information and makes the following computations: Laser rangefinder measured azimuth 5927 FDC reported azimuth 5918 Angular difference -9 Observer azimuth to reference point (M2 compass) 5769 Angular difference -9 Corrected azimuth to reference point (HOUSE) 5760 The observer places this resulting azimuth on the laser rangefinder while sighting on reference point HOUSE. Figure A-3. Self-location by use of two bursts SELF-LOCATION BY USE OF IMAGERY A-5. This is the most preferred method of self-location. It is especially useful in static Ops or when at a halt while on patrol. Utilizing a pocket-size forward entry such as the PFED with PFI viewer or FOS system loaded