ATK's Unique Rocket Motor Design Key to Meeting Performance Criteria

Flight Tests Met or Exceeded All Test Parameters

MINNEAPOLIS, Oct. 6 /PRNewswire-FirstCall/ -- Alliant Techsystems (NYSE: ATK) has successfully demonstrated an innovative propulsion system for the Non Line-of-Sight Launch System (NLOS-LS) Precision Attack Missile (PAM). Three successful tests have been conducted at the White Sands Missile Range, New Mexico. ATK is under contract to Raytheon (NYSE: RTN) Missile Systems for the system design and development (SDD) phase of the program.

The Non Line-of-Sight Launch System provides precision fires for the Army's Future Combat Systems and the Navy's Littoral Combat Ship (LCS). It is platform-independent, self-contained and compatible with current and future command and control systems. NLOS-LS comprises the container launch unit (CLU) and a precision attack missile (PAM) all-up-round (AUR). NLOS-LS is one of the first systems developed for the Army's Future Combat System and is planned for initial fielding in 2011. The U.S. Army currently plans to procure more than 25,000 NLOS-LS PAM missiles. The missiles will be primarily used against moving as well as stationary targets, both ground and at sea.

The successful Controlled Test Vehicle (CTV) missile flight tests included ATK rocket motors that feature the latest innovations in rocket motor design to meet insensitive munitions requirements. ATK has combined a set of composite and energetic technologies into a propulsion system that maintains the desired high energy ballistic performance, while at the same time improving the overall propulsion system insensitive munitions response to potential battlefield stimuli.

During the tests, the missile demonstrated safe egress from the container launch unit (CLU), transitioned to a steady, controlled flight through the boost and sustain phases, and performed preplanned aerodynamic maneuvers. The success of the CTV tests set the stage for beginning guided flight test, to further validate system level maturity.

'We are very pleased to be part of the U.S. Army's NLOS-LS PAM program,' said Bart Olson, Vice President and General Manager of ATK's Tactical Propulsion and Controls Division. 'The successful tests validated a breakthrough technology that will give the warfighter access to affordable and reliable, high-performance propulsion systems that offer additional safety for the user because of the insensitive munitions characteristics.'

The PAM is a 7-inch diameter, 60-inch long, 118-pound, modular missile that is effective against moving and stationary targets. The PAM has a 40-kilometer maximum range and uses a GPS/inertial navigation system to guide to the target area. Once in the target area, the PAM uses its dual mode uncooled imaging infrared (UCIIR)/semi-active laser (SAL) seeker to acquire and perform terminal guidance on high-value targets. In addition, a GPS/inertial mission can also be executed to deliver the PAM's warhead to a requested target position. Following launch, targeting data can be updated (in-flight target updates [IFTU]) and sent to the missile via PAM's onboard radio system. The missile will be deployed from the platform independent multi-missile Container Launch Unit (CLU) which can house up to fifteen missiles.

ATK is a premier aerospace and defense company with more than 17,000 employees in 21 states and approximately $4.6 billion in revenue. 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: the challenges of developing insensitive munitions, 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:                             Investor Contact:
     Tom Van Leunen                             Steve Wold
     Phone:  703-412-3218                       Phone:  952-351-3056
     E-mail:  thomas.vanleunen@atk.com          E-mail:  steve.wold@atk.com

SOURCE ATK