A high-resolution optical bar camera sensor successfully flew on the high-altitude, unmanned RQ-4 Global Hawk for the first time last week, Northrop Grumman announced this week -- an important step toward integrating the legacy camera onto the aircraft before Lockheed Martin's U-2 Dragon Lady retires in 2019. The company intends to prove the Global Hawk's ability to adapt to several sensors though an open systems architecture that lets the UAV work with a range of legacy and next-generation payloads without...