GenCorp Inc. engages in the manufacture and sale of aerospace and defense products and systems in the United States. The company operates in two segments, Aerospace and Defense, and Real Estate. The Aerospace and Defense segment offers defense system products, including liquid, solid, and air-breathing propulsion systems and components for applications in missile defense systems, maneuvering propulsion systems, precision war-fighting systems, and specialty metal products, as well as for use in strategic, tactical, and precision strike missiles. This segment also provides composite and metallic aerospace structural components, and warhead and armament systems for precision tactical and long range weapon applications. In addition, it provides liquid, solid, and electric propulsion systems and components for space systems, such as expendable and reusable launch vehicles, transatmospheric vehicles, manned and unmanned spacecraft, separation and maneuvering systems, upper stage engines, satellites, solid boosters, and integrated propulsion subsystems. This segment serves military, civil, and commercial space customers; Department of Defense; National Aeronautics and Space Administration; aerospace, defense, and commercial prime contractors; and various agencies of the United States government. The Real Estate segment engages in the re-zoning, entitlement, sale, and leasing of the company’s excess real estate assets; and owns approximately 12,200 acres of land in the Sacramento metropolitan area. GenCorp Inc. was founded in 1915 and is headquartered in Rancho Cordova, California.