Aerojet Solid Rocket Motor Propels Successful PAC-3 MSE Flight Test Intercept

SACRAMENTO, Calif., April 13, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that it provided the advanced Solid Rocket Motor (SRM) propulsion that propelled Lockheed Martin Missiles and Fire Control’s (LMMFC) successful PATRIOT Advanced Capability-3 (PAC-3) Missile Segment Enhancement (MSE) Guided Test Flight – 1B (GTF-1B).

Aerojet Awarded Contract for Research and Technology in Aerospace Propulsion

SACRAMENTO, Calif., April 13, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced today that NASA Glenn Research Center has awarded the company a five-year Indefinite-Delivery, Indefinite-Quantity (IDIQ) contract to provide NASA with its space propulsion system technologies, including cryogenic and electric propulsion for spacecraft.

ARIES Biodiesel System Delivered to Naval Base Ventura County

April 8, 2010 - PORT HUENEME, California – The first ARIES biodiesel production system has been delivered to Naval Base Ventura County. ARIES is the result of a collaborative effort by the U.S. Navy, Biodiesel Industries and Aerojet to produce a sustainable and reliable renewable fuel, biodiesel, using local resources.

Aerojet Engine Test Demonstrates Engine Design for NASA's Orion Crew Exploration Vehicle

SACRAMENTO, Calif., April 8, 2010 – Aerojet, a GenCorp (NYSE: GY) company, successfully completed 100 hot-fire test sequences of its R-1E 25-pound, thrust-bipropellant engine. The test included more than 27,389 starts with 6,298 seconds of total burn time under a broad variety of conditions expected for NASA’s Orion service module.

Aerojet Engines Maneuver Discoverys Docking to International Space Station

SACRAMENTO, Calif., April 7, 2010 – Aerojet, a GenCorp (NYSE: GY) company, announced that its engines contributed to Space Shuttle Discovery’s (STS-131) on-orbit operations and successful docking to the International Space Station (ISS). Discovery lifted off on April 5 from NASA’s Kennedy Space Center in Florida and docked with the ISS today.