Main Battle Tank
Line-of-Sight
Stabilization System
Kearfott Corporation
a subsidiary of Astronautics Corporation of America
Innovative Solutions
Next Generation Targeting
Enhanced on-the-move (OTM) stabilization for
the Next Generation of FLIR Technology.
• Offers best in class on‐the‐move sight stability in the presence of harsh environments.
• Excels at stabilizing large caliber weapons with minimal boresight 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]
CONEX Gyro
 Low noise
 Superior reliability
 High shock and vibration
capability
PCIe or VMEbus
Interface
Kearfott’s Main Battle Tank Dual Axis Head Mirror Assembly (DAHA):
• Provides the stabilization solution for the M1A2 Abrams Tank Fire Control System (FCS).
Proven Technologies
2nd Gen 3rd Gen Reticle Stability Walk-off for
Large Caliber Weapons
<1 mil line-of-sight walk-off after firing.
 Available with either VME
or VPX electronic cards
Robust Control
Algorithms
 Adaptive friction
compensation
 Optimized target tracking
Main Battle Tank
Applications
 M1A2 Abrams Tank
 M60 Battle Tank
 Others
Main Battle Tank
Stabilized Line-of-Sight (LOS) System
Description
The Dual-Axis Head Assembly (DAHA) Line-Of-Sight (LOS)
Stabilization System, presently in full scale production, is a key
element of the Fire Control System (FCS) presently being used on
Main Battle Tanks and other fighting vehicles.
The DAHA provides turret reticle stabilization in the presence of harsh
environments, improving situational awareness and keeping rounds
on target. Applications include any vehicle requiring stabilized guns
and sights. The system provides improved image acquisition and
target tracking in harsh battlefield environments and is operated with
either PCIe or VME control electronics.
Performance Capabilities Ambient Stabilization
< 2 µrad (1σ)
On‐the‐Move Stabilization
< 60 µrad (1σ)
Built‐in‐Test Coverage
Tracking Rate Capability
Fault Detection: 95%
Fault Isolation: 90%
Elevation: 750 mils/sec
Azimuth: 750 mils/sec
Physical Characteristics LOS Excursion
Elevation: +22° to –16°
Azimuth: +5° to –9°
Mirror Dimensions
9.4” x 13.3”
Overall Dimensions
8.8”H x 11.5”D x 18”W
Overall Weight
57 lbs
Power
24 Vdc, 150 W (max)