The U.S. Navy is planning to demonstrate an armed, sensor-equipped, carrier-based unmanned combat aircraft system (UCAS) by 2018, as a follow-on to carrier-suitability and autonomous aerial-refueling demonstrations planned for completion in 2013. A request for information (RFI) will be released this year, according to Rear Adm. William Shannon, program executive officer for unmanned aviation and strike weapons, speaking Feb. 17 at Aviation Week’s Defense Technology and Requirements conference in Washington. The program could be worth as much as $2 billion, with major funding starting in Fiscal 2013. The RFI will be open to all manufacturers, and not automatically an extension...