(Editors note: This story has been updated to include comments from a Lockheed Martin executive and convey the correct number of Global Hawks in the service's inventory, which is 33.) The cost of operating the RQ-4 Global Hawk fell by 38 percent to $14,876 per flight hour in 2014, according to a source familiar with the program. The Northrop Grumman-built unmanned surveillance aircraft cost about $24,000 per flight hour to operate in 2013 and $32,000 in 2012, according to...
