Chronicle of the Salty Dogs: The X-47B
By Roger Connor Retired in April 2015, the U.S. Navy’s two Northrop Grumman X-47B unmanned air vehicles – known by their call signs as Salty Dog 501 and Salty Dog 502 – represent the most significant progress in Unmanned Combat Aerial Systems (UCAS) to date. Among a number of achievements, …