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.
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