China's new mother vessel for the manned deep-sea research submersible Jiaolong will be named Shenhai Yihao (Deep Sea No. 1). Jiaolong, which is undergoing a major maintenance check at the base, will start a global deep-sea scientific exploration mission in 2020. The new vessel, to be delivered around March 2019, will have a displacement of approximately 4,000 tons and be able to travel 12,000 nautical miles per journey. Named after a mythical dragon, Jiaolong reached its deepest depth of 7,062 meters in the Mariana Trench in June of 2012. Jiaolong has dived 158 times in the past five years.
Source: CAS news release, May 14, 2018
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