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SAN DIEGO– Two Navy researchers last month outlined some major limitations on adding and using hypersonic weapons., focused on physics limitations combined with expense. “So there is an advantage to speed. They also help survivability, [but also] they're very expensive,” David Kiel, director of the Directed Energy Warfare Office at the Office of Naval Research, said during a Feb. 14 panel discussion at the West 2023 conference, sponsored by AFCEA International and the U.S. Naval Institute. Kiel underscored news reports…
