Aerojet Rocketdyne Propulsion Supported United Launch

Alliance Successful Atlas V Mission for the National Reconnaissance Office

Aerojet Rocketdyne

(SACRAMENTO) - Aerojet Rocketdyne, a GenCorp (NYSE:GY) company, played a significant role in successfully launching a national security payload into orbit for the U.S. government. The mission was launched from Cape Canaveral Air Force Station in Florida aboard a United Launch Alliance (ULA) Atlas V rocket, with an Aerojet Rocketdyne RL10A-4-2 upper-stage engine, four AJ60 solid rocket boosters, five helium pressurization tanks and a dozen Centaur upper-stage thrusters used for roll, pitch, yaw and settling burns.

"Today's successful launch demonstrates the reliability of Aerojet Rocketdyne propulsion and the trust our customers place in our ability to propel critical payloads to orbit," said Steve Bouley, vice-president of Space Launch Systems at Aerojet Rocketdyne. "Aerojet Rocketdyne remains committed to offering the safest, most dependable propulsion on the market."

With the help of four AJ60 solid rocket boosters providing more than 1.5 million total pounds of thrust, the Atlas V rocket lifted off the pad. Once in space, the ULA Centaur upper stage, powered by a single RL10A-4-2 engine, ignited to place the payload into orbit, helped by the Centaur thrusters and other Aerojet Rocketdyne-provided hardware for both the booster and upper stage. The workhorse RL10A-4-2 engine delivers 22,300 pounds of thrust to power the Atlas V upper-stage, using cryogenic liquid hydrogen and liquid oxygen propellants during its operation. ARDe, a subsidiary of Aerojet Rocketdyne based in New Jersey, provides the pressure vessels on the first and second stages on the launch vehicle.

Twelve Aerojet Rocketdyne monopropellant (hydrazine) thrusters in four modules on the Atlas V Centaur upper stage provided roll, pitch and yaw control as well as settling burns for the upper stage.

Aerojet Rocketdyne is a world-recognized aerospace and defense leader providing propulsion and energetics to the space, missile defense and strategic systems, tactical systems and armaments areas, in support of domestic and international markets. GenCorp is a diversified company that provides innovative solutions that create value for its customers in the aerospace and defense, and real estate markets. Additional information about Aerojet Rocketdyne and GenCorp can be obtained by visiting the companies' websites