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Sea Dragon Unmanned Submersible Commentary

2026-04-16 02:21
2026-04-16 05:05

The Hailong unmanned submarine was an underwater robot independently developed by China. It occupied an important position in China's ocean resource survey submarine equipment system. There were many models of the Sea Dragon, which formed a powerful family. The "Big Brother" Sea Dragon set a diving record of 3200 meters in the 21st voyage of China's oceanic scientific research mission in 2009. This feat made China use an RV to obtain a living black chimney sample for the first time. Hailong II ROVs used hydraulic power, with a maximum diving depth of 3500 meters. It was equipped with seven thrusters, an acousto-optical detection system, and two manipulators. It also developed independent technologies such as virtual monitoring, hovering positioning, and active heave compensation, marking the entry of China's deep-sea ROVs into the practical engineering stage. The Sea Dragon III has an operating depth of 6000 meters. It has the ability to patrol the seabed independently and operate heavy equipment. It can carry a variety of survey equipment and heavy sample tools, effectively improving the deep-sea exploration operation capability and efficiency. The Sea Dragon 11000 was powered by electricity and carried seven types of robotic arms and a variety of work tools. It could sail underwater and explore independently. With different power, size, deployment methods, and power forms, these Sea Dragon unmanned submarines covered different working depths from 3500 meters to 11000 meters. They could carry out light and heavy operations and played an irreplaceable role in various marine exploration missions. They had made outstanding contributions to China's marine exploration and marine resource survey. The novel "Flood Dragon" is equally exciting. Everyone is welcome to click and read it!

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