ATK Completes Third Space Act Agreement Milestone for Liberty under NASA's Commercial Crew Program

ATK's Liberty Launch System Designed to Provide Safe, Reliable Crew Transportation to the ISS

Jan 24, 2012

SALT LAKE CITY, Jan. 24, 2012 /PRNewswire/ -- ATK's (NYSE: ATK) Liberty program successfully held its Launch System Initial Systems Design (ISD) Review, which completes the third of five milestones in the company's unfunded Space Act Agreement (SAA) with NASA for the Commercial Crew Development Program.

The SAA enables NASA and the Liberty team to share technical information related to the Liberty Transportation System during the Preliminary Design Review phase of the program. During this meeting ATK presented the status of Liberty's systems level requirements, preliminary design and certification process.

"This unfunded partnership with ATK on its Liberty systems brings expertise from around the globe and we are glad to contribute our more than 50 years of human spaceflight experience to this effort," said Ed Mango, NASA's Commercial Crew Program manager.

"With the SAA in place we have been able to work closely with NASA's Commercial Program and receive valuable feedback as we develop the Liberty Transportation System," said Kent Rominger, ATK vice president and program manager for Liberty. "We continue to develop Liberty with the goal of providing the safest, most reliable, cost-effective and capable launch vehicle for crew transport."

The current SAA continues through at least March 2012. The two milestones met earlier included a Requirements Status Briefing and a Technical Interchange Meeting for the Liberty Transportation System. The ISD Review included Liberty team members from ATK, Astrium (an EADS Company), their subcontractors, and representatives from NASA's Commercial Crew Office at Kennedy Space Center and NASA representatives from other centers.

Prior to the signing of the SAA, the Liberty team successfully conducted a System Requirements Review and a System Development Review. All efforts to date have been supported exclusively by internal funding.

The commercial crew Liberty Transportation System combines two of the world's most reliable propulsion systems. ATK is the prime, providing the human-rated five-segment solid rocket motor as the first stage.  Astrium is providing the core stage from the Ariane 5 rocket, including the Vulcain 2 engine, as Liberty's upper stage. The launch vehicle has the capability to lift 44,000 pounds to low-Earth-orbit.

"Liberty not only has the highest pounds-to-orbit of any other vehicle currently working under commercial agreements, it also is the only vehicle that was originally designed for human rating," said Rominger.

The five-segment motor is derived from the human-rated Space Shuttle and Ares solid rocket motors, and the core stage for the Ariane 5 was originally slated to lift the Hermes Space Plane. The current goal is to begin test launches in 2015, with a crewed flight in 2016.

ATK is an aerospace, defense, and commercial products company with operations in 22 states, Puerto Rico, and internationally, and revenues of approximately $4.8 billion. News and information can be found on the Internet at www.atk.com.

NASA CCP Media Contact: Candrea Thomas, 321-867-2468, candrea.k.thomas@nasa.gov

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: the challenges in developing a new commercial launch vehicle; 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.

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Phone: 952-351-3056

E-mail: trina.patterson@atk.com

E-mail: steve.wold@atk.com

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