Multiple Orbital ATK Technologies Support United Launch Alliance
Atlas V Launch
DULLES, Va.Oct. 8, 2015--
Orbital ATK, Inc. (NYSE: OA), a global leader in aerospace and defense
technologies, supported today's successful launch of a United Launch
Alliance Atlas V rocket from Vandenberg Air Force Base, California. The
rocket launched a classified satellite, designated NROL-55, for the U.S.
National Reconnaissance Office in support of a national defense mission.
Orbital ATK-produced structures and components on the ULA Atlas V
launch vehicle contributed to another successful launch today, said
Scott Lehr, President of Orbital ATK s Flight Systems Group. Our
products play a vital role in delivering on mission commitments critical
to national security.
Using advanced fiber placement manufacturing and automated inspection
techniques, Orbital ATK produced the 10-foot diameter composite heat
shield on the ULA Atlas V rocket, which provides essential protection
for the first stage of the launch vehicle from engine exhaust
temperatures in excess of 4,000 degrees Fahrenheit. The large composite
structure was fabricated at Orbital ATK's Iuka, Mississippi, facility.
This is the 58th Atlas V launch using Orbital ATK-built
composite structures.
This flight marked the 23rd successful flight of the Orbital
ATK retro motors. Eight of these solid motors provided thrust for
separation of the spent first stage. The ULA Atlas V retrorocket is
built at Orbital ATK's Elkton, Maryland, facility.
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
Orbital ATK
Media Contact:
Bryan Warren, 801-775-1233
Sr.
Communications Manager
Orbital ATK Aerospace Structures
bryan.warren@orbitalatk.com
or
Investor
Contact:
Barron Beneski, 703-406-5528
Public and Investor
Relations
barron.beneski@orbitalatk.com