The Pentagon's director of operational test and evaluation has once again urged the Air Force to complete follow-on testing of the Global Hawk Block 30 aircraft more than four years after initial operational testing found serious problems with the aircraft's performance and its primary signals intelligence sensor. The Northrop Grumman-built Global Hawk Block 30 program has been under a cloud since that initial testing in 2011, having been terminated in 2012 and then revived in 2014. Despite the troubles, Director...
