'Qianlong III' submersible to undergo first sea test

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Chinese research vessel "Dayang Yihao" (Ocean No. 1) has set sail from Xiamen, Fujian Province, on Sunday, carrying the newest Chinese unmanned submersible, the "Qianlong III," to the South China Sea to conduct its first sea tests, reports the Xinhua News Agency.

Chinese research vessel "Dayang Yihao" (Ocean No. 1) leaves Xiamen, Fujian Province, on April 15, 2018, to test China's newest unmanned submersible, the "Qianlong III," for the first time in the South China Sea. [Photo: Xinhua]

"Qianlong III," which can dive to a depth of 4,500 meters, is the newest member of China's unmanned submersible family.

"'Qianlong III' is an updated version of 'Qianlong II,' with better endurance capacity and lower noise. It is designed to meet the need of China's deep-sea resources exploration," said Liu Jian, chief designer of Qianlong II and III with the Chinese Academy of Sciences.

Officials with the China Ocean Mineral Resources R&D Association suggest the "Qianlong III" will mainly be used in complex underwater terrain for resource exploration.

The "Dayang Yihao," which just recently returned to China after a series of deep sea tests in the western Pacific, will also be carrying out a wide range of scientific surveys during its mission in the South China Sea.

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