Innovative Techniques for Missile Defense - Proportional Hot Gas Actuator for DACS

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0006-05-C-7215
Agency Tracking Number: B041-020-1562
Amount: $749,976.00
Phase: Phase II
Program: SBIR
Awards Year: 2005
Solicitation Year: 2004
Solicitation Topic Code: MDA04-020
Solicitation Number: 2004.1
Small Business Information
PO Box C, Sanford, ME, 04073
DUNS: 076362370
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Karl Hoose, P.E.
 (207) 459-7777
Business Contact
 Colleen O'Neill
Title: Corporate Counsel
Phone: (207) 459-7777
Research Institution
A key component of missile interceptor vehicles is the divert and attitude control system (DACS), which is responsible for maneuvering the interceptor vehicle to its target. A vital component to the DACS is the thruster, which provides effective control of vehicle divert. Solid propellant DACS thrusters employ an adjustable pintle for controlling the thrust level. Movement of the pintle for smooth operation is typically accomplished with electro-mechanical (EM) actuators that require a significant portion of the total vehicle power. As the DAC thrust duration requirements increase, the power needs for EM actuation severely impedes meeting weight and size requirements. The focus of this effort is to minimize the electrical power requirements of the DACS by utilizing a small portion of energy from the solid propellant motor. The proposed innovative technique utilizes hot gases from the gas generator to drive the pintle actuation in a proportional mode. The Phase II effort will demonstrate a prototype hot gas actuator in relevant environment, which will verify the drastically reduced electrical power requirements for DACS for interceptor vehicles. Hence, the weight, size, and cost of the interceptor vehicles will be significantly reduce, and provide a more reliable and effective ballistic missile defense system.

* Information listed above is at the time of submission. *

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