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FN
FCU Fire Control Unit FN Herstal |
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The FN
Fire Control Unit (FN FCU) is an advanced sight designed for use with
any 40mm stand-alone or underbarrel grenade launcher. Using the FN FCU
maximizes first-round hit probability.
Two models are available: the FN FCU-850N and the FN FCU-1.5M. Both
offer similar aiming/firing capabilities and benefits, with the FN FCU-1.5M
featuring a laser range finder undetectable with Night Vision Goggles.
The FN FCU consists of:
- a laser range finder (LRF), which calculates the distance between
the shooter and the target
- a clinometer, which measures the difference in elevation/depression
between the target and the shooter
- a ballistic computer, which calculates the angle of launch required
- a moving red reticle sight, which gives the correct aiming point
- a weapon cant indicator, which indicates when weapon realignment is
required.
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| Model |
- FN FCU-
850N: with
laser beam 850 nm
- FN FCU-1.5M: with laser beam 1.550 nm |
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| Technical
Data |
 Back
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| Design |
The FCU
is capable of ranging targets from 40m to 900m day and night.
It contains an onboard Ballistic Computer (BC), for up to
50 different types of 40mm grenades; the ballistic solutions
from the computer take into account and compensate for the
initial vertical angle of the target. The FCU is operable
by a remote trigger. If there is weapon cant, the red reticle
flashes to indicate the operator needs to realign the weapon
vertically. Red reticle flashes quickly or slowly if the operator
needs to realign to the right or left respectively. The FN
FCU is powered by two CR123 type batteries.
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| Combat
use |
| Successful
target engagement with 40mm LV tube-launched grenades requires
precise range estimation to the target and launch at the exact
elevation angle, while keeping correct azimuth aiming.
With the FN Fire Control Unit (FN FCU), the shooter can now
rely on a light, compact and easily used device to significantly
maximize first-round hit probability.
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| Main
Benefits of FN FCUs |
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Automatic aiming correction
- All human factors likely to affect accuracy are eliminated
- Maximized grenade launcher effectiveness
- Fast and accurate target engagement
- Highly ergonomic moving red reticle
- Weapon cant indicator
- Easy to use
- Lightweight and compact
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| Specifications |
| Back
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General
Specifications |
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Two CR123-type 3-volt batteries as power source
- Remotely mounted pressure switch with ruggedized
cord connection port
- Rear-facing LED display screen
- MIL SPEC membrane switches for power and
reticle brightness
- Flashing reticle indicator allows operator
to correct for left or right weapon cant
- Housing shape allows use of rifle’s
optical and/or iron sights
- Adaptable to any rifle, carbine or grenade
launcher with a top-mounted MIL-STD 1913 rail
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Moving
Red Aiming Reticle Sight |
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.06 degree resolution
- .25 degree accuracy
- 40 degree maximum sighting angle provides 380
meters of effective grenade firing range (low
velocity grenades only)
- windage and elevation/depression may be adjusted
independently to co-witness with iron sights |
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Laser
Range Finder |
-
900 meters effective range
- Range finder may be used independent of
grenade launcher to range for more precise
long-range rifle fire
- 850 nm wavelength (FN FCU-850N)
- 1550 nm wavelength (FN FCU-1.5M)
- Class 3b visible laser (FN FCU-850N)
- Class 1 (training) and Class 3b (combat)
visible laser (FN FCU-1.5M)
- Class 1m infrared laser (FN FCU-850N)
- Class 1 (training) and Class 3b (combat)
infrared laser (FN FCU-1.5M)
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Ballistic
Computer |
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Instantly calculates firing solution for 50+
different types of 40x46mm grenades
- Built-in clinometer senses initial up/down
sighting angle
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