ATP-3-09-30 Observed Fires Download
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Chapter 5 5-32 ATP 3-09.30 28 September 2017 Example Quick and time registration—range correct spotting (see figure 5-16 on page 5-26). Refinement data for the impact portion was determined by using rounds 4, 5, and 6. Sum of deviation spottings is 1R + 3L + 2L = 4L. Average deviation is 4L ÷ 3 = 1.33L ≈ 1L. Observer-target factor is 3. MPI is 3 X 1L = 3 meters L ≈ 0 meters. The registration point is nearer the last round fired. Correction is RECORD AS REGISTRATION POINT, TIME 1 ROUND, REPEAT, OVER. (The change in the volume of fire to one round is required because the previous correction had changed the method of engagement to two rounds.) Refinement data for the time portion was determined by using rounds 7, 8, 9, and 10. The time portion spottings were 3 AIR and 1 GRAZE. Correction is RECORD AS TIME REGISTRATION POINT, END OF MISSION, OVER. Figure 5-21. Quick and time registration during adjustment example, page 2