China's manned submersible to take on 10,000-meter dive in Mariana Trench

Source:Global Times Published: 2020/5/25 22:59:53

Photo taken on March 10, 2020 shows the manned submersible Shenhai Yongshi at Nanshan port in Sanya, south China's Hainan Province. China's science ship Tansuo-1 loaded with the manned submersible Shenhai Yongshi, or "deep-sea warrior," set sail Tuesday for the first scientific expedition this year for the missions of ocean resource exploration, geochemistry research and marine organism collection. (Xinhua/Guo Cheng)

China's manned submersible for 10,000-meter deep sea exploration is expected to visit the 11,000-meter Challenger Deep in the Mariana Trench, the deepest point in the ocean in the world.

The 10,000-meter manned submersible will be tested after its all-process tank experiment in March in Wuxi, East China's Jiangsu Province, the Science and Technology Daily reported Monday.

Before trying for the final goal of the 10,000-meter dive, the submersible will first conduct tests in shallower waters, Ye Cong, deputy director of the 702 Institute, was quoted by the Science and Technology Daily as saying.

The submersible was assembled by the China Ship Scientific Research Center, known as the 702 Institute under China Shipbuilding Industry Corporation, China's largest ship and ocean engineering research institute, the report said.

To dive down to the Challenger Deep, the submersible will have to cope with about 1,100 atmospheres, which equals more than 10,000 tons of heavy objects on a 1-square meter space. This brings great challenges in terms of the materials and design of the submersible, according to the report.

"China's manned submersibles show China's deep-sea technologies… the submersible will further upgrade China's capabilities in oceanic detection and research," Ye said.

Ye also expects to visit the deep trench in this submersible designed by himself.

Previously, China's Shenhai Yongshi manned submersible, also built by the China Shipbuilding Industry Corporation, was able to dive underwater to a depth of 4,500 meters. China's first deep-sea manned submersible, Jiaolong, set a world record by diving to a depth of 7,062 meters during tests in the Mariana Trench in 2012.

There are 37 trenches deeper than 6,000 meters in the world, which are the hardest to reach and least known to humans.

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