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Along with the "Xiangyanghong 09" mother ship whistling, the Chinese manned submersible "Jilong" 5000 meters sea trial (China's Ocean 25th voyage) set sail from the Sunan International Terminal in Jiangyin, Jiangsu Province on the 1st.
At the starting ceremony, the members of the "Zhenlong" swear to the bright five-star red flag, remembering the people of the motherland and resolutely completing the sea trial mission. Liu Zhigui, director of the State Oceanic Administration, awarded the flag to the "Dragon" sea test team.
In the next 47 days, it will carry the scientific dream of the Chinese people to "catch the moon in the past nine days, catch the squad, climb the scientific peak, and explore the deep sea", and go to the northeastern Pacific Ocean, diving into the deep sea of ​​5,000 meters.
"This time it will impact the target of 5,000 meters in depth, and carry out operations tests and applications such as underwater photography, videography, seabed topography measurement, measurement of marine environmental parameters, seabed fixed-point sampling, etc." Secretary-General of China Ocean Association, leader of manned sea trial Jin Jiancai, deputy head of the group, said.
This will comprehensively assess the design function and performance of the “Zhenlong†at a depth of 5,000 meters, and train and cultivate the Chinese manned deep diving technical ability. The design depth of this "Chinese Dragon" is 7,000 meters.
Last summer, the "Zhenlong" dive to 3,759 meters in the deepest test of the 3,000-meter sea, marking that China has become the fifth deep-dive technology with a depth of more than 3,500 meters after the United States, France, Russia and Japan. country.
"This year's 5,000-meter mission will be more challenging." The relevant person in charge of the Ministry of Science and Technology said that the first test is about 10,000 kilometers from the mainland of the motherland, and it takes one month to travel back and forth. Second, the test environment in the sea area is complex and variable. The third is that the 5,000-meter dive target is a new test for China’s manned diving.
Jin Jiancai said that in the past year, all the R&D personnel have completed technical improvement work such as operating system, insulation detection system and video system upgrade for the problems reflected in the 3,000-meter sea trial. "China Xiaolong" has been fully tested, repaired and maintained. At the same time, the applicability of the "Xiangyanghong 09" mother ship and surface support system was further improved. The supporting capacity of the "Xianlong" submarine operation and sea trials was further improved, which provided a strong guarantee for the sea trial.
Deep-sea manned submersibles are equipment that can quickly and accurately reach a variety of deep-sea complex environments for efficient exploration, scientific investigation and offshore operations. It is an important technical means for the peaceful development and utilization of deep-sea resources.
In 2002, the Ministry of Science and Technology listed the development of the “Zhenlong†deep-sea manned submersible as a major project of the “863†program. Through its own design and independent integration, it created an authentic “Chinese Dragonâ€.
This year's 5000-meter sea trial is still organized and implemented by the State Oceanic Administration.
"In the spirit of trial, application and improvement, the sea trial chose to carry out the Northeast Pacific polymetallic nodules exploration contract area signed by the China Oceanic Association and the International Seabed Authority." Jin Jiancai said.
On the 1st, nearly 100 members from the 702 Research Institute of China Shipbuilding Industry, the Shenyang Institute of Automation and the Institute of Acoustics of the Chinese Academy of Sciences, etc., confidently set foot on the "record journey" of China's manned dive.
Chinese manned submersible "Jilong" set sail