ATK developed the CASTOR® 30 in response to a market need for a
large-diameter, upper-stage motor. It has the flexibility to serve markets as
diverse as space launch, Prompt Global Strike and Operationally Responsive
Space. This motor joins a heritage of ATK CASTOR motors with proven high
reliability for more than 50 years.
The CASTOR 30 motor is based on the CASTOR 120® motor, which has flown on the
Taurus I, Athena I and Athena II launch vehicles. The inaugural flight of the
new motor is scheduled for 2011 as the upper stage on the Taurus 2 medium-lift
rocket with a mission to the International Space Station.
The CASTOR 30 measures 138 inches in length and 92 inches in diameter, and it
weighs 30,000 pounds. The motor is nominally designed as an upper stage that can
function as a second or third stage as well, depending on the vehicle
configuration. Its design uses all flight-proven technology and materials while
capitalizing on ATK's extensive experience in solid motor development and
The versatile CASTOR 30 has multiple commercial and government applications,
including: Taurus 2 medium-lift, Commercial Orbital Transportation System
application; Athena launch vehicles; PGS and missile defense; and ORS.
ATK currently manufactures a complete line of first- and second-stage and
strap-on CASTOR solid rocket motors. The CASTOR heritage was developed from four
generations of first-stage ballistic missile boosters and the technology and
experience at ATK.
ATK's CASTOR I-IV family has a combined total of more than 1,900 flights and
reliability of 99.95 percent. The motor was successfully test fired at simulated
altitude at the Air Force's Arnolds Engineering Development Center in Tennessee
on Dec. 10, 2009.
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