Eric Walker updated the time prefix for Northrop Grumman X-47B to be "2011"

Eric Walker updated the time prefix for Northrop Grumman X-47B to be "2021"

Eric Walker updated the time prefix for Northrop Grumman X-47B to be "2023"

Eric Walker added X-47B Stealth Strike Fighter built for the U.S. Navy By Northrop Grumman - YouTube to Northrop Grumman X-47B

Eric Walker added Northrop Grumman X-47B - Wikipedia to Northrop Grumman X-47B

Eric Walker placed Northrop Grumman X-47B under Northrop Grumman

Eric Walker added Northrop Grumman X-47B to Military drones