SAN DIEGO, Calif. -- Northrop Grumman completed early delivery of two Global Hawk unmanned aircraft to the U.S. Air Force ahead of schedule. In 2012, three new Global Hawks were delivered to the Air Force and five previously delivered aircraft completed installation of additional sensors that will allow them to gather multiple types of intelligence data during a single mission. A total of 37 Global Hawks have been delivered to the Air Force. Global Hawk has logged more than 80,000 flight hours and has been used over battlefields in Iraq, Afghanistan and Libya. (Source: Northrop Grumman, 01/07/13) Gulf Coast note: Global Hawks are built in part in Moss Point, Miss.