A 20-month-old Philadelphia startup is building 425-pound Ghostfin attack drone submarines for the U.S. Navy and Taiwan inside a former marble showroom.
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Navy Buys Attack Drone Subs Built in a Philly Marble Showroom
A 20-month-old Philadelphia startup is building 425-pound Ghostfin attack drone submarines for the U.S. Navy and Taiwan inside a former marble showroom.