The U.S. Air Force awarded Northrop Grumman Corp. an indefinite-delivery, indefinite-quantity contract valued at $276 million for operations and maintenance support of the RQ-4 Global Hawk unmanned reconnaissance aircraft. With eight Global Hawks (seven Block 10s and one Block 20) currently stationed at its main operating base at Beale Air Force Base, CA, or deployed in-theater, this sustainment contract calls for continued training and peace-time operations support for fiscal years 2009 and 2010. All work under this contract will be managed and executed by the 560th Aircraft Sustainment Group at Warner Robins Air Logistics Center in Robins Air Force Base located in middle Georgia. Northrop Grumman's Global Hawk teammates performing work under this contract include L-3 Communications (communication system), Raytheon Co. (integrated sensor suite and ground station), and Rolls-Royce Corp. (engine).