How many stadia lines are in the NFOV and what do they indicate?

• A. There are two stadia lines; range is determined by width
• B. There are three stadia lines, and if the vehicle is smaller than the two outside lines from the flank then the vehicle is not in range
• C. There are three stadia lines; range is determined by the center line only
• D. There is one stadia line; range is not affected by size

Answer: (B)

Three stadia lines appear in the NFOV reticle. They’re used to judge range by how wide the target appears in the sight. The two outer lines mark the in-range width a target must occupy from the flank; if the vehicle looks smaller than the gap defined by those outer lines, you’re not yet in range. The center line is simply a reference for alignment and aiming, not a range indicator. So the NFOV uses three lines, and range is determined by whether the target’s apparent width fits between those outer lines rather than by the center line alone.