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Rocket Motors

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Castor 120
Castor IV
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   Castor 120
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The Castor 120 is a medium-size, high-performance solid propellant motor developed in 1989 to fill the gap between motors in the 30,000-pound range and large motors like the Space Shuttle reusable solid rocket motors and the Titan IV solid rocket boosters.  The first flight of a Castor 120 occurred on August 22, 1997 with the launch of Lockheed Martin's LMLV-1 (Athena) as the first-stage motor.

Thiokol developed the Castor 120 from the Castor series of solid rocket motors making it a very versatile motor.  It can be used as a first stage, second stage or a strap-on booster.  The thrust vectoring system provides nozzle vector angles of up to five degrees.  It has a graphite epoxy case produced using a continuous winding process and it has a tailorable thrust profile.  The Castor 120's low cost was achieved through advanced design features such as a reduced part count, a reduction in cycle time and a modified propellant grain machining process.  

Prime Contractor: Thiokol Propulsion  
P.O. Box 707 
Brigham City, UT 84302-0707 
Tel: (435)863-3511
Point of Contact: Gregg Spendlove, Phone:435-863-2405
Chuck Jensen, Phone: 435-863-3788
Web Links: Thiokol Castor 120 Web Site

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