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XRQ-73 ~ US DARPA’s Newest X-Plane

The Series Hybrid Electric Propulsion AiRcraft Demonstration programme, known as SHEPARD, sees it’s hybrid-electric uncrewed aircraft system (UAS) receive its official X-plane designation, XRQ-73 [© DARPA]

The US DARPA SHEPARD programme’s hybrid-electric uncrewed aircraft system has its official X-plane designation ~ XRQ-73.

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Press Release, Arlington VA, 24 June 2024: The SHEPARD programme’s hybrid-electric uncrewed aircraft system has its official X-plane designation.

The Series Hybrid Electric Propulsion AiRcraft Demonstration programme, known as SHEPARD, has received its official X-plane designation: XRQ-73. SHEPARD is an ‘X-prime’ programme, leveraging the series hybrid electric architecture and some of the component technologies from the earlier AFRL/IARPA Great Horned Owl (GHO) project.

“The idea behind a DARPA X-prime programme is to take emerging technologies and burn down system-level integration risks to quickly mature a new missionised long endurance aircraft design that can be fielded quickly,” said Steve Komadina, SHEPARD programme manager. “The SHEPARD programme is maturing a specific propulsion architecture and power class as an exemplar of potential benefits for the Department of Defense.”

The DARPA team includes members from the Air Force Research Laboratory (AFRL), the Office of Naval Research (ONR), and our warfighters. The prime contractor for SHEPARD is Northrop Grumman Corporation’s Aeronautics Systems sector in Redondo Beach, CA. Scaled Composites, LLC is a major supplier, along with Cornerstone Research Group, Inc., Brayton Energy, LLC, PC Krause and Associates, and EaglePicher Technologies, LLC.

The XRQ-73 aircraft will be a Group 3 UAS weighing approximately 1,250 pounds. First flight of the XRQ-73 is expected by year-end 2024.

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