Aerojet Engine Launches New Global Positioning Satellite Into Orbit

'Modernized' GPS Satellite Marked for Military and Civilian Use

SACRAMENTO, Calif., March 20 /PRNewswire-FirstCall/ -- Aerojet's liquid second-stage engine helped power the United Launch Alliance (ULA) Delta II launch vehicle and its Global Positioning System (GPS) satellite into orbit on March 15th for the U.S. Air Force from Cape Canaveral Air Force Station in Florida.

Aerojet's Delta II second stage engines are among the world's most reliable, and this launch marks the 263rd successful Delta launch to date using Aerojet's second-stage engines. Aerojet, a GenCorp (NYSE:GY) company, has provided second stage engines for the Delta II since 1982. Aerojet also provides 16 thrusters for the GPS satellite's in-space maneuvering requirements.

Aerojet's second stage liquid rocket engine owes its longevity to a robust design and the use of proven components that have evolved over the engine's lifetime to enhance performance and meet customer requirements. Aerojet second stage engine support of ULA's Delta II vehicles will continue through at least 2010.

Aerojet's satellite thrusters have successfully flown on every GPS mission to date ensuring the United States has GPS navigation capability vital to both the commercial and military communities.

This satellite is the sixth successful modernized navigation satellite launched to aid military and civilian users. The spacecraft provides critical upgrades to GPS navigation services by adding an additional civilian signal as well as robust military channels that are less susceptible to jamming.

Aerojet is a world-recognized aerospace and defense leader principally serving the missile and space propulsion and armaments markets. GenCorp is a leading technology-based manufacturer of aerospace and defense products and systems with a real estate segment that includes activities related to the entitlement, sale, and leasing of the company's excess real estate assets. Additional information about Aerojet and GenCorp can be obtained by visiting the companies' Web sites at http://www.aerojet.com/ and
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Source: Aerojet

CONTACT: Glenn Mahone, +1-202-302-9941, Glenn.Mahone@Aerojet.com, or
Kristin Conner, +1-916-355-2143, Kristin.Conner@Aerojet.com, both of Aerojet;
or Linda Cutler of GenCorp, +1-916-351-8650, Linda.Cutler@GenCorp.com

Web site: http://www.aerojet.com/
http://www.gencorp.com/

2008-03-20 18:06:19 0317671 PRNEWSWIRE