A poem praising the dragon

Jiaolong manned submersible is a manned submersible designed and independently developed by China, and it is also a major research project in the 863 Program. 20 10 From May to July, the manned submersible "Jiaolong" made several dives in the South China Sea of China, and the maximum dive depth reached 7020 meters.

The length, width and height of Jiaolong are 8.2m, 3.0m and 3.4m respectively. Its empty weight is no more than 22 tons, its maximum load is 240 kilograms, its maximum speed is 25 knots, its cruising speed is 1 knots, its current maximum diving depth is 7062.68 meters, and its maximum working design depth is 8000 meters. Theoretically, its work scope can cover the whole world.

Achievements of China's deep-sea resources investigation and exploration and development: the application for extension of the exploration contract for polymetallic nodules was approved by the Council of the International Seabed Authority, and the State Oceanic Administration organized five ocean voyage missions, focusing on ensuring the experimental application of the manned submersible "Jiaolong" and the field investigation in the exploration contract area, and the investigation work was continuously expanded.

With the gradual application of deep-sea equipment technology, the ability of deep-sea investigation has been further enhanced. Deep-sea high-tech equipment such as Jiaolong manned submersible, Qianlong series unmanned cableless submersible and Hailong series unmanned cableless submersible provide a strong guarantee for China to carry out resource investigation and fulfill its exploration contract obligations.

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As one of the "three dragons" of the submersible family, Jiaolong is different from unmanned diving dragons and unmanned sea dragons. The advantage of Xiaolong lies in the fixed-point hovering operation. Scientists can take the Jiaolong to directly observe and sample the seabed, and make a detailed study of a certain point on the seabed in the form of "dissecting sparrows". "Three Dragons" can complement each other's advantages and combine points, lines and planes for survey.

In June 2002, the Ministry of Science and Technology officially approved the establishment of the "7000-meter manned submersible" in the "Tenth Five-Year Plan" 863 country. China Ocean Association, as the owner, is responsible for the organization and implementation of the project; The 702nd Research Institute of China Shipbuilding Industry Corporation and Shenyang Institute of Automation of China Academy of Sciences have become the backbone of the project development.

After the successful delivery of Jiaolong, from 2009 to 20 12, Jiaolong successively achieved 1000m, 3000m, 5000m and 7000m sea trials. Diving to 7000 meters shows that the integration technology of Jiaolong manned submersible is mature, which indicates that China's deep-sea submersible has become one of the frontiers and commanding heights of marine scientific investigation.

China News Network-China has made great achievements in the investigation, exploration and development of deep-sea resources.

Baidu encyclopedia-Xiaolong