This photo of X-47B combat drone taking fuel from tanker proves we are one step closer to unmanned aerial refueling

On Apr. 16, “Salty Dog 502?, one of the two Unmanned Carrier Air Vehicle demonstrator (UCAS-D) aircraft of the X-47B program performed autonomous aerial refueling (AAR) test, plugging the in-flight refueling (IFR) probe into the hose of a Omega Air tanker off the coast of Maryland.

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