Space

ATK Receives $1.8 Billion Contract to Develop and Support Test Flights for NASA's Ares I Crew Launch Vehicle First Stage

ATK's Expanded Role on the Ares I Project Highlights the Company's Technical Depth
Multi-year Contract Runs Through 2013

MINNEAPOLIS, Aug. 13 /PRNewswire-FirstCall/ -- The National Aeronautics and Space Administration (NASA) announced today that Alliant Techsystems (NYSE: ATK) has received a $1.8 billion contract for the design, development, test and evaluation (DDT&E) of the first stage of the agency's next-generation human space flight vehicle - the Ares I. The multi-year development contract extends through June 2013 and includes flight tests beginning in 2009. Follow- on human flights are scheduled for no later than 2014, and production hardware for those flights will be developed under a separate contract expected after 2010.

Ares I is a major element of the new space transportation infrastructure being developed by NASA to carry out the next steps in America's space exploration roadmap. It will replace the Space Shuttle as NASA's human spaceflight workhorse and will launch a new generation of human explorers to the International Space Station (ISS), the Moon, and eventually to Mars.

"Our entire team is fully committed to supporting NASA as we work together to build this new launch vehicle for the future," said Ron Dittemore, President, ATK Launch Systems Group. "Ares I has tremendous capabilities for cargo and human transportation to low earth orbit, and with the built-in heritage of the Apollo and Shuttle programs, it will be the most reliable launch vehicle ever developed."

In December 2005, NASA named ATK as the prime contractor to design and develop the Ares I first stage. Ares I will launch NASA's new Orion crew exploration vehicle which carries a crew of up to six astronauts on missions to and from the ISS. Orion is capable of carrying a crew of four on lunar missions.

The first stage consists of a five-segment solid rocket booster, similar to the four-segment boosters used for Space Shuttle launches. The fifth segment increases the thrust of the launch vehicle, but has been designed to fire for a similar timeframe as the space shuttle solid rocket boosters -- approximately two minutes. The DDT&E contract also includes systems engineering and related stage elements such as: structures, thrust vector control, avionics, ordnance, the separation system, and deceleration system.

Major project milestones include:

• An early flight test in 2009 utilizing a modified four-segment Space Shuttle Solid Rocket Booster with a fifth segment simulator (designated Ares I-X)


• Five ground tests of the new five-segment RSRM in 2009-2011


• Three Ares I flight tests utilizing the new five-segment first stages in 2012 and 2013

"Over the past year, ATK and NASA have worked closely to achieve significant program milestones and we are pleased to announce that the project is right on track," said Mike Kahn, Vice President, ATK Space Launch Systems. "At the project level, we have completed the System Requirements Reviews (SRR) and have made excellent progress toward the Ares I-X test flight."

The first stage of the Ares I crew launch vehicle is being designed and developed by ATK at its facilities in Utah, with the assistance of a nationwide subcontractor team.

ATK is a $4.0 billion advanced weapon and space systems company employing approximately 16,500 people in 21 states. News and information can be found on the Internet at http://www.atk.com/.

Certain information discussed in this press release constitutes forward- looking statements as defined in the Private Securities Litigation Reform Act of 1995. Although ATK believes that the expectations reflected in such forward-looking statements are based on reasonable assumptions, it can give no assurance that its expectations will be achieved. Forward-looking information is subject to certain risks, trends and uncertainties that could cause actual results to differ materially from those projected. Among those factors are: changes in governmental spending, budgetary policies and product sourcing strategies; the company's competitive environment; the terms and timing of awards and contracts; and economic conditions. ATK undertakes no obligation to update any forward-looking statements. For further information on factors that could impact ATK, and statements contained herein, please refer to ATK's most recent Annual Report on Form 10-K and any subsequent quarterly reports on Form 10-Q and current reports on Form 8-K filed with the U.S. Securities and Exchange Commission.

Media Contact:
Bryce Hallowell
Phone: 952-351-3087
E-mail: bryce.hallowell@atk.com

Investor Contact:
Steve Wold
Phone: 952-351-3056
E-mail: steve.wold@atk.com