_:naf68670888904b2bbd8faad45b99ff2bxb0
<http://schema.org/description>
"The U.S. Navy spent $744 million to develop and build its two Northrop Grumman X-47B unmanned combat air system-demonstrators (stealthy, carrier-launched drones)."
<https://www.foxbusiness.com/markets/lockheed-looks-to-eliminate-northrop-grummans-lead-in-drones>