Aerojets Huntsville Office Hosts Expansion Groundbreaking Ceremony

HUNTSVILLE, Ala., March 25, 2011 – Aerojet, a GenCorp (NYSE: GY) company, announced today that in partnership with Huntsville City Mayor Tommy Battle and Chamber of Commerce executives, it held a groundbreaking ceremony, marking the launch of Aerojet’s new office expansion project. The event began at 4 p.m. and was held at Aerojet’s future location at 7047 Old Madison Pike in Huntsville.

Aerojet Propulsion System Inserts Mercury MESSENGER Spacecraft into Mercury Orbit

SACRAMENTO, Calif., March 21, 2011 – Aerojet, a GenCorp (NYSE: GY) company, announced today that NASA’s MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) spacecraft has successfully achieved the first-ever orbit around the planet Mercury using Aerojet’s propulsion system. MESSENGER was launched aboard a Delta II on Aug.

Aerojet Earns Energy Efficiency Incentives for its Ultraviolet Technology Project

SACRAMENTO, Calif., March 15, 2011 – Aerojet, a GenCorp (NYSE: GY) company, today was recognized by Sacramento Municipal Utility District (SMUD) for the company’s installation of a more energy-efficient ultraviolet (UV) treatment system in one of its environmental groundwater remediation facilities.

Aerojet Receives San Fernando Valley Engineers Council Award for U.S. Navy Coyote Program

SACRAMENTO, Calif., Feb. 28, 2011 – Aerojet, a GenCorp (NYSE: GY) company, announced today that the company, along with its partner Orbital Sciences Corporation (Orbital), has received the San Fernando Valley Engineers’ Council’s Distinguished Engineering Project Achievement Award for work done on the ramjet engine development for the U.S.

Aerojet, Orbital and NASA Hot Fire Aerojets AJ26 Flight Engine for Taurus® II Space Launch Vehicle

SACRAMENTO, Calif., Feb. 8, 2011 – Aerojet, a GenCorp (NYSE: GY) company, along with NASA and Orbital Sciences Corporation (NYSE: ORB) (Orbital), conducted the acceptance hot-fire test of the second AJ26 flight engine that will power the first stage of Orbital’s Taurus® II medium-class launch vehicle.