The U.S. Air Force and Northrop Grumman are coming to terms with cost growth in the Global Hawk unmanned aerial vehicle (UAV) program that has occurred during the transition to the larger RQ-4B model, ...

Add Yahoo as a preferred source to see more of our stories on Google. May 10—GRAND FORKS — A new airframe and unit record has been set at Grand Forks Air Force Base following six months of work into ...