Hanwha Systems Co., the defense arm of Hanwha Group, said Thursday it has launched a 30-ton-class unmanned surface vessel in the southeastern port city of Busan for sea trials to evaluate its operational capabilities. The company said the USV was launched near Gadeok Bridge in early June and has since been conducting sea trials between Busan and Jangmok Port on Geoje Island. The trials will evaluate the vessel's capabilities, including autonomous navigation through narrow waterways, safe operati