The Northrop Grumman XRQ-73 SHEPARD (Series Hybrid Electric Propulsion AiRcraft Demonstration) is an tailless flying wing hybrid-electric Group 3 unmanned aerial vehicle (weighting about 1,250 lb (570 kg)) developed by Northrop Grumman.

[1][2] The prime contractor will be Northrop Grumman's Aeronautic Systems, with Scaled Composites,[2] Cornerstone Research Group, Brayton Energy, PC Krause and Associates, and EaglePicher Technologies as suppliers.

[1] The XRQ-73 is an evolution of the XRQ-72A Great Horned Owl (GHO).

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