ATP-3-09-02 Field Artillery Survey Download
Page 75 of 168
Angle Determination 16 February 2016 ATP 3-09.02 5-17 5-36. While turning the instrument in a clockwise direction sight in on the 1 st Forward Station to the lowest visible point. Read the reverse horizontal angle and record in the Horizontal Angle column R row (see figure 5-27). Figure 5-27. Reverse reading forward station 1 5-37. While turning the instrument in a clockwise direction sight in on the IPADS or IPADS-G porro prism and achieve optical transfer. .Read the reverse horizontal angle and record in the Horizontal Angle column R row (see figure 5-28). Figure 5-28. Reverse reading rear station