Think in terms of courses and use the TDC to your advantage. What I mean by that is, once you determine the target’s course, simply add or subtract 90° from that depending on the side of the target you are on, and turn to that course, no further turning required. Now, put your scope to zero, set 90 left or right AOB on the TDC depending on what direction the target’s bow is pointing. Click the TDC to update, turn your scope and you see now that the computer is updating AOB for every degree of bearing change. So now, as long as you don’t change course or the target doesn’t change course, the AOB will be valid throughout.
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