The Series Hybrid Electric Propulsion AiRcraft Demonstration program aims to develop a novel long endurance unmanned aircraft, with first flight expected by the end of 2024. The Defense Advanced ...
The US Defense Advanced Research Projects Agency (DARPA) revealed the XRQ-73 Series Hybrid Electric Propulsion Aircraft Demonstration (SHEPARD) unmanned aerial vehicle (UAV) programme. The 1,250 lb ...
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