Lockheed Martin, Aerojet Achieve Joint Air-To-Ground Missile (JAGM) Rocket Motor Breakthrough

ORLANDO, FL, April 6, 2010 – Lockheed Martin [NYSE:LMT] and Aerojet, a GenCorp [NYSE:GY] company and teammate on the Joint Air-to-Ground Missile (JAGM) program, achieved a technological breakthrough by successfully completing full temperature range testing and validation to support a single rocket motor solution for all JAGM fixed-wing and rotary-wing platforms.

Aerojets Advanced Third Stage Technology Demonstration Motor Successfully Tested by Air Force

SACRAMENTO, Calif., March 25, 2010 – Aerojet, a GenCorp (NYSE: GY) company, and the U.S. Air Force conducted a successful static test of Aerojet’s Advanced Third Stage (A3S) technology demonstration motor in support of the U.S. Family of Motors for military and commercial applications.

Aerojet and Orbital Complete Main Engine Lifetime Testing for Taurus II Space Launch Vehicle -- Russian Tests of Heritage NK-33 Rocket Engine Confirm Performance and Durability -- Engine Completes Two Times Normal Firing Duration of a Taurus II Launch Pro

SACRAMENTO, Calif., March 15, 2010 – Aerojet, a GenCorp (NYSE: GY) company, and Orbital Sciences Corporation (NYSE: ORB), along with Aerojet’s Russian partner, SNTK, announced today that a series of NK-33 rocket engine tests conducted in Samara, Russia were successfully completed in support of the development of Orbital’s Taurus® II space launch vehicle.

Aerojet Supports Launch and Orbital Placement of GOES-P

SACRAMENTO, Calif., March 10, 2010 -- Aerojet, a GenCorp (NYSE: GY) company, played a key role in the successful launch of United Launch Alliance's (ULA) Delta IV rocket from Cape Canaveral, Fla., carrying the Geostationary Operational Environmental Satellites-P (GOES-P) satellite built by The Boeing Company [NYSE:BA] for this NASA and NOAA cooperative mission.

Aerojet Engines Maneuver Discoverys Docking to International Space Station

SACRAMENTO, Calif., Feb. 28, 2011 – Aerojet, a GenCorp (NYSE: GY) company, announced today that its engines contributed to Space Shuttle Discovery’s (STS-133) on-orbit operations and successful docking to the International Space Station (ISS). Discovery lifted off Feb. 24 from NASA’s Kennedy Space Center in Florida and docked with the ISS on Saturday.