Aerojet, a GenCorp
Inc. company, played a key role in the successful launch earlier
today of the Lockheed Martin Atlas® V vehicle, featuring two of Aerojet’s
single-structure, 67-foot solid rocket boosters. In addition, Aerojet hardware
supported the launch vehicle, the upper stage, and the spacecraft.

The solid rocket boosters provided 500,000 lbs. of thrust for the launch
vehicle, while the company’s monopropellant rocket engines provided
directional control for the Atlas upper stage. Additionally, Aerojet provided
the arcjets, power processing units and thrusters used for north/south
station-keeping and attitude control of Lockheed Martin’s AMERICOM 16

The Atlas boosted the AMERICOM 16 spacecraft into orbit for use by
EchoStar Communication Corp.’s (EchoStar) DISH Network.

“Aerojet solid propulsion and liquid in-space technology supported today’s
successful Atlas launch,” said company President Michael Martin. “We are
serving the needs of our Lockheed Martin and EchoStar customers with
flight-proven, reliable, advanced hardware.”

Aerojet is a world-recognized aerospace and defense leader principally
serving the missile and space propulsion, and defense and armaments markets.
GenCorp is a leading technology-based manufacturer of aerospace and defense
products and systems with a real estate business segment that includes
activities related to the development, sale and leasing of the Company’s real
estate assets. Additional information about Aerojet and GenCorp can be
obtained by visiting the Companies’ web sites at and .

Forward-Looking Statements

This press release contains forward-looking statements based on current
management expectations. Numerous factors, including those related to market
conditions and those detailed from time to time in GenCorp’s filings with the
Securities and Exchange Commission, may cause results to differ materially
from those anticipated in the forward-looking statements. Many of the factors
that will determine GenCorp’s future results are beyond the ability of GenCorp
to control or predict. These statements are subject to risks and uncertainties
and, therefore, actual results may differ materially. Readers should not place
undue reliance on forward-looking statements, which reflect management’s views
only as of the date hereof. GenCorp undertakes no obligation to revise or
update any forward-looking statements, or to make any other forward-looking
statements, whether as a result of new information, future events or