ATP-3-09-02 Field Artillery Survey Download
Page 67 of 168
Angle Determination 16 February 2016 ATP 3-09.02 5-9 Figure 5-11. Telescope direct mode 5-19. After achieving autoreflection, read the vertical angle which is annotated by VA on the display (see figure 5-12). Record the Direct Vertical Reading in the Recorder’s Notebook in the Vertical Reading column in the D row which stands for Direct Mode. Figure 5-12. Vertical angle recording 5-20. The next step is to take a reverse vertical angle reading (see figure 5-13 on page 5-10). Be careful not to insert your finger between the telescope and the instrument trunion while rotating the telescope. Plunge the telescope in the reverse mode the eyepiece will be on the right side of the telescope. With the telescope in the reverse mode achieve autoreflection.