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ATK Successfully Completes Second Static Test Firing of Solid Rocket Motor For Boeing Delta IV Launch Vehicle Family

Apr 27, 2000

ATK (Alliant Techsystems) (NYSE: ATK), said Alliant Aerospace Propulsion Company, Magna, Utah, today successfully completed the second of three static test firings to qualify a new solid rocket motor for The Boeing Company's Delta IV Medium-plus family of launch vehicles.

The Delta IV vehicles are the latest derivative of the Delta family of rockets that has been lifting satellites into orbit since 1960. The new graphite epoxy motor, known as GEM-60, is designed to provide a lift capacity ranging between 12,890 and 14,475 pounds to geosynchronous transfer orbit (GTO) for the Delta IV Medium-plus family of vehicles.

Jeff Foote, president, Alliant Aerospace Propulsion Company, said the new GEM-60 motor performed flawlessly during the second static firing, which tested the motor at cold temperature and employed the thrust vector control system.

"The results achieved in the first two test firings indicate that we are squarely on track to qualify this important new solid rocket booster," said Foote. "The GEM-60 development program has proceeded smoothly and on schedule from the very beginning, thanks to a strong partnership between Boeing and Alliant Aerospace Propulsion Company. We are looking forward to the final static test firing next month and the culmination of a great team effort."

The Boeing Delta IV family of launch vehicles is designed to meet the growing needs of satellite builders and users around the globe for reliable and affordable access to space.

Alliant Aerospace Propulsion Company is part of ATK's Aerospace group, which comprises the company's space and strategic propulsion and Utah- and Mississippi-based composite structures operations. The group employs approximately 1,700 people in California, Florida, Mississippi, New York, and Utah. Sales in fiscal year 1999 were $395 million. The GEM-60 motors are manufactured at the group's Utah Composites Center in Clearfield, Utah, and Utah Propulsion Center in Magna, Utah.

ATK is a $1.1 billion aerospace and defense company with leading market positions in munitions, solid propulsion, composite structures, and precision electronic fuzes. The company, which is headquartered in Hopkins, Minn., employs approximately 6,400 people and has three business segments: Conventional Munitions, Aerospace, and Defense Systems. ATK news and information can be found on the Internet at http://www.atk.com/

SOURCE: ATK

Contact: Media, Rod Bitz, 612-931-5413, rod_bitz@atk.com, or Investors,
Melanie E.R. Miller, 612-931-6921, melanie_miller@atk.com