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MISSILE COMPONENTS

Control Actuator Systems (CAS)

MISSILE COMPONENTS

Control Actuator Systems (CAS)

Control Actuator Systems (CAS)

General Dynamics Ordnance and Tactical Systems is a premier developer, manufacturer and integrator of Electromechanical Servo-Control Actuation Systems (CAS). For over 30 years, we have provided full service engineering and manufacturing of custom electromechanical control actuation systems used to guide the flight trajectories of rockets, missiles, and space interceptors.  These CAS are used to control fin positions for aerodynamic maneuvers as well as propulsion levels for exoatmospheric trajectory control.

We design CAS solutions that survive 30,000g gun launches prior to performing the fin control actuation.  Our tactical CAS designs work under extreme thermal and vibration environments while having the highest dynamic performance in the small, lightweight packages.  Our space system products, built under the highest level of quality assurance, provide ultra-fast response times that allow “kill vehicles” to precisely intercept the correct location on incoming ICBM warheads.

Types of Control Actuator Systems Designed and Manufactured:

Gun Hardened CAS

The gun hardened CAS are used to turn artillery shells into cost effective, guided munitions.  The CAS must survive accelerations from the gun launch in the range of 15,000g to 30,000g and then reliably operate.  The post launch operation typically has two complex mechanical motion functions: fin deployment and fin actuation.  Aerodynamic fins are stored inside the shell during initial ballistic flight to extend the range.  After the fin deployment mechanism locks the fins into their extended state, the CAS responds to guidance commands that steer the shell into the target.  Gun launched munitions offer significant cost and logistical advantages over propulsion launched systems.

Tactical Missile CAS

Our tactical missile CAS have made enormous advances in performance density.  First, they offer high levels of operation in the torque vs. speed domain.  Secondly, they have exceptionally high fin position loop bandwidth (ultra-fast response to position commands).  Lastly, they meet this torque, speed, and bandwidth levels in small packages.  The small packages are designed to tight margins, allowing the tactical missile to use the available weight and length to enhance range or lethality.

Space Qualified CAS

The space qualified CAS designs leveraged the Tactical Missile CAS performance density and added in extreme environments with long flight times.  The bandwidth, power, and precision of these control actuators enable the Throttleable Divert and Attitude Controls System (TDACS) unparalleled guidance and control accuracy.  To enable the TDACS mission performance, these CAS are purposely designed to thermal and structural limits that are verified through arduous testing and analysis.  The manufacturing methods operate under the strict Mission Assurance methods required by the Missile Defense Agency.

Precision Rocket CAS

The precision rocket CAS are differentiated from our other product lines by an extreme focus on production cost.  These systems tend to be larger diameter air vehicles with plenty of packaging room for electromechanical actuators.  The engineering design trade space includes larger, lower cost motors, and  a simplified supply chain.

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General Dynamics Ordnance and Tactical Systems is a global aerospace and defense company. We are a committed to providing the U.S. military and its allies with an extensive range of overarching products that provide a cutting-edge advantage to our war fighters. A General Dynamics Company.

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