Northrop Grumman is working on two separate challenges to wide-scale global operations of the Global Hawk/Triton unmanned air systems, Tom Vice, president of the company’s Aerospace Systems segment, said in Washington Aug. 20. The more recent is the U.S. Navy’s issue of a stop-work order to ITT Exelis, which was developing the sense-and-avoid radar for the MQ-4C Triton maritime UAV. A sense-and-avoid capability, Vice says, is “vital” to the MQ-4C, which is designed to operate in oceanic ...


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