Catseye NVG

The AVS-6 has a 40-degree field of view. How- ever, since its range is only approximately 200 feet, pilots use the sight only for low-level observation, up to 200 feet AGL. It can be powered by either two BA 5567 lithium batteries or adapted aircraft power. Catseye NVG Figure 1-12 illustrates the Catseye NVG. This sight is used in fixed wing military aircraft as a pilot aid during nighttime operations. The image intensifier assemblies are mounted above the pilot’s line of sight so they do not interfere with forward vision. In this sight, the intensified image is superimposed on the “real world” image. This allows the pilot to see both the intensified image of the scene outside the cockpit and the cockpit displays simultaneously. The Catseye weighs only 1.7 pounds. It has a 30-degree field of view and, like the AVS-6, is limited to a range of 200 feet. It is powered by two “AA” lithium batteries. AN/PVS-7A NVG The AN/PVS-7A, shown in figure 1-13, is used in the fleet for short-range observation and chart reading. It has a monocular design, which results in lower system weight. The PVS-7A has a range of 200 to 350 yards and a 40-degree field of view. It can be powered by either 161.2 Figure 1-12.—Catseye NVG. 1-10