Contract Supports Research, Design and Development Work for Sub-, Super- and Hypersonic Vehicles

DULLES, Va.Sep. 21, 2015-- Orbital ATK, Inc. (NYSE: OA), a global leader in aerospace and defense technologies, announced today it has been awarded a Research and Technologies for Aerospace Propulsion Systems 2 (RTAPS2) contract by NASA to provide advanced space propulsion system technologies. NASA developed the RTAPS2 contract as part of aerospace research activities at the agency s Glenn Research Center in Cleveland, Ohio.

RTAPS2 makes it possible for qualified industry partners to develop, demonstrate and verify advanced propulsion system technologies as part of NASA s aerospace research programs. Research and development efforts in these technologies will address a wide variety of propulsion issues for subsonic, supersonic, hypersonic and rotorcraft transportation vehicles, as well as addressing issues pertaining to aviation safety and space exploration missions. The award was made to Alliant Techsystems Operations LLC, a wholly-owned subsidiary of Orbital ATK.

This effort reflects our continued commitment to be a key partner in NASA s pioneering space endeavors, said Mike Kahn, President of Orbital ATK s Defense Systems Group. Orbital ATK has a rich history as a technology partner, and we are continuing to develop advanced solutions in space access and hypersonics propulsion.

The Orbital ATK team consists of more than a dozen established technology partners and small businesses. Under Orbital ATK s direction they will research and develop space propulsion technologies that enable higher mission performance, reduced cost, improved operability and reliability, and greater safety. Elements of the space propulsion award include liquid engine systems, propellant systems, electric propulsion and rocket-based combined cycle.

Orbital ATK s Defense Systems Group is an industry leader in providing innovative and affordable precision and strike weapons, advanced propulsion and hypersonics, missile components across air-, sea- and land-based systems, ammunition and related energetic products.

About Orbital ATK

Orbital ATK is a global leader in aerospace and defense technologies. The company designs, builds and delivers space, defense and aviation systems for customers around the world, both as a prime contractor and merchant supplier. Its main products include launch vehicles and related propulsion systems; missile products, subsystems and defense electronics; precision weapons, armament systems and ammunition; satellites and associated space components and services; and advanced aerospace structures. Headquartered in Dulles, Virginia, Orbital ATK employs more than 12,000 people in 18 states across the U.S. and in several international locations. For more information, visit www.orbitalatk.com.

Source: Orbital ATK, Inc.

Media Contact:
Orbital ATK
Bryan Kidder, 410-864-4932
Defense Systems Group Communications
bryan.kidder@orbitalatk.com
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Barron Beneski, 703-406-5528
Public and Investor Relations
barron.beneski@orbitalatk.com