ATK Technologies Support Titan IVB Launch
Powerful Booster Makes its Last East Coast Launch
May 2, 2005
Minneapolis, May 2, 2005 – Alliant Techsystems (NYSE: ATK) propulsion and composite technologies supported the recent launch of a Lockheed Martin Titan IVB rocket from Cape Canaveral Air Force Station, Fla. that successfully placed a classified payload for the U.S. National Reconnaissance Office into orbit.
Two ATK Solid Rocket Motor Upgrade (SRMU) boosters provided more than 3.4 million pounds of thrust during the first two minutes of the Titan IVB launch. Each booster measures 112 feet in length and 10.5 feet in diameter, and weighs over 770,000 pounds. The SRMU boosters have been flying on Titan IVB missions since February 1997.
Additional ATK solid rocket motors were used in booster and stage separation. Staging rockets safely moved the spent SRMU boosters away from the launch vehicle.
After the liquid second-stage engine completed its burn, four ATK STAR™ 5CB retrorockets jettisoned the spent second stage from the vehicle.
This was the last Titan IV to be launched from Cape Canaveral Air Force Station, Fla. The final Titan IV of the program will fly from Vandenberg Air Force Base, Calif., later this summer.
Built by Lockheed Martin (NYSE: LMT), the Titan IVB is capable of boosting up to 47,800 pounds into low-Earth orbit or more than 12,700 pounds into geosynchronous orbit 22,300 miles above the Earth.
ATK is a $2.4 billion advanced weapon and space systems company employing approximately 14,000 people in 23 states. News and information can be found on the Internet at www.atk.com.
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