Aerojet Engines on ATV Give Space Station a Big Boost

SACRAMENTO, Calif., July 11, 2011 – Aerojet, a GenCorp (NYSE: GY) company, announced today that the European Space Agency’s ATV-2 (Johannes Kepler) successfully completed a major series of reboost maneuvers on the International Space Station (ISS) using four Aerojet model R-4D-11 110-pound bipropellant rocket engine.

Aerojet Engines Maneuver Space Shuttle on Atlantis Historic Final Launch

SACRAMENTO, Calif., July 10, 2011 – Aerojet, a GenCorp (NYSE: GY) company, announced today that after 30 years of partnership with NASA, its engines have contributed to the final docking of the space shuttle to the International Space Station (ISS). Shuttle Atlantis (STS-135) completed its on-orbit operations and successful docking this morning.

Aerojet Hires Dr. James A. Drakes as Executive Director, Advanced Programs

SACRAMENTO, Calif., July 6, 2011 – Aerojet, a GenCorp (NYSE:GY) company, announced that Dr. James A. Drakes joined Aerojet today as an executive director of Advanced Programs in the Business Development department. Drakes will be responsible for developing new growth opportunities for the company through advanced technologies.

Aerojet, QinetiQ and EADS Astrium Crisa to Jointly Market XENITH(TM) Ion Propulsion System

PARIS, Le Bourget and SACRAMENTO, Calif., June 21, 2011 – Aerojet, a GenCorp (NYSE: GY) company, QinetiQ, (LSE: QQ.L) and EADS Astrium Crisa, an EADS (PAR:EAD) company, announced today that the companies have entered into a joint agreement to supply the XENITH(TM) (Xenon Ion Thruster) ion propulsion system to the worldwide commercial spacecraft market.

Aerojet Hires Bart Graham as Executive Director, Advanced Programs

SACRAMENTO, Calif., June 21, 2011 – Aerojet, a GenCorp (NYSE: GY) company, announced today that Jerry (Bart) Graham has joined Aerojet as an executive director of Advanced Programs in the Business Development department.