Another ‘marvel’ of Chinese engineering

2011-07-21 09:56

Beijing – A Chinese submersible conducted the country’s deepest manned dive ever today in the latest milestone for China’s deep-sea ambitions as it seeks to exploit the vast resources of the ocean floor.

The Jiaolong undersea craft – named after a mythical sea dragon – reached 4 027m below sea level in a test dive in the northeastern Pacific, the State Oceanic Administration said in a statement.

“The success of this test dive has laid a solid foundation for completing the mission of diving to 5 000m,” it said.

The craft carried three people today’s test and will attempt to reach 5 000m in another dive tomorrow.

Chinese technical capabilities have gathered pace in recent decades, exemplified by a fast-growing space programme that in 2005 made China just the third nation to conduct manned space flight.

The Jiaolong’s range theoretically gives China access to nearly all of the world’s deep-sea areas, and state news agency Xinhua quoted the administration’s director Li Cigui as saying the vessel was a “marvel” of Chinese engineering.

The craft is designed to reach a maximum depth of 7 000m and in a dive in the South China Sea last year it made China only the fifth country to go deeper than the 3 500m mark, according to previous Chinese reports.

The deepest dive ever conducted was by the US Navy, which reached the bottom of the Mariana Trench – the deepest point in the world’s oceans at 11 000m – in 1960 in a manned undersea craft.

China has pushed hard in recent years to obtain oil, minerals and other natural resources needed to fuel its growth.

It has said its development of submersible technology is aimed at scientific research and the peaceful exploration and use of natural resources.

But China’s appetite for resources, rapid expansion of its military capabilities and increasingly strident territorial claims in the ocean have caused concern.

During the vessel’s dive to the bottom of the disputed South China Sea last year it planted a Chinese flag in the sea floor in what was seen by some as a provocative act.

The South China Sea, which is believed to be rich in oil and gas, is claimed in whole or in part by China, Taiwan, the Philippines, Vietnam, Brunei and Malaysia.

Tensions in the region have spiked in recent months after several incidents at sea involving China and its neighbours.

Scientists say the ocean’s floors contain rich deposits of a range of potentially valuable minerals.

However, some concerns also have been raised that deep-sea vessels could be used to tap into or sever communications cables.

China’s official Xinhua news agency has quoted officials saying the Jiaolong’s crew would conduct tests in the Pacific, including taking photos, shooting video, surveying seabeds and taking samples from the ocean floor.

It also would examine possible sites for a potential future test dive to its maximum depth of 7 000m, Xinhua said, giving no timetable.

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