Modular Chain Gun
Line-of-Sight
Stabilization System
Kearfott Corporation
a subsidiary of Astronautics Corporation of America
Innovative Solutions
Next Generation Targeting
On-the-move stabilization for the Next
Generation of FLIR Technology.
Proven Technologies
CONEX Gyro
 Low noise
 Superior reliability
 High shock and vibration
capability
PCIe or VMEbus
Interface
Kearfott’s Compact Modular Sight (CMS) Dual Axis Head Assembly (DAHA):
• Provides the stabilization solution for the Littoral Combat Ship (LCS) Fire Control System (FCS).
• Offers best in class on‐the‐move sight stability in battlefield environments.
• Excels at stabilizing rapid fire weapons with minimal shot‐to‐shot walk‐off. • Utilizes advanced control algorithms to maximize sight stability.
• Meets the stability requirement of 3rd
generation Forward Looking Infrared (FLIR) sensors. 1150 McBride Ave
Little Falls, NJ 07424
973.785.6555 [email protected]
2nd Gen 3rd Gen Shot-to-Shot Accuracy for
High Fire Rate Weapons
<0.1 mil shot-to-shot LOS repeatability
stabilizing the MK44 30mm Bushmaster II
chain gun.
 Available with either VME
or VPX electronic cards
Robust Control
Algorithms
 Adaptive friction
compensation
 Optimized target tracking
Land and Sea
Applications
 Littoral Combat Ship
 Expeditionary Fighting
Vehicle (EFV)
Compact Modular Sight (CMS)
Stabilized Line-of-Sight (LOS) System
Description
Kearfott’s Compact Modular Sight (CMS) Inertially Stabilized Line of
Sight (LOS) system is a key element of the Fire Control System (FCS)
presently being used on the Littoral Combat Ship (LCS) and other
turret applications.
The CMS provides turret reticle stabilization in the presence of harsh
environments, improving situational awareness and keeping rounds
on target. The CMS was designed to stabilize rapid fire weapons with
minimal shot-to-shot walk-off of the sight reticle. The inertial
stabilization mode is built on Kearfott’s proven CONEX gyro
technology and utilizes advanced control algorithms to maximize sight
stability.
Performance Capabilities Ambient Stabilization
< 2 µrad (1σ)
On‐the‐Move Stabilization
< 40 µrad (1σ)
Built‐in‐Test Coverage
Tracking Rate Capability
Fault Detection: 95%
Fault Isolation: 90%
Elevation: 1100 mils/sec
Azimuth: 1100 mils/sec
Physical Characteristics LOS Excursion
Elevation: +32.5° to –34.5°
Azimuth: +5° to –5°
Mirror Dimensions
9.5” x 8”
Overall Dimensions
8.7”H x 11”D x 14.4”W
Overall Weight
53 lbs
Power
24 Vdc, 150 W (max)