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"Xiangyanghong 10" ocean-going survey vessel
"Yuanwang" No. 4 space survey ship

The "Xiangyanghong No. 10" Ocean Comprehensive Scientific Research Vessel was designed and built by the China Ship and Ocean Engineering Design and Research Institute and the Jiangnan Shipyard. It was delivered in October 1979. In April 1980, "Xiangyanghong No. 10" participated in China's first launch of a launch vehicle test to the Pacific Ocean: in April 1984, China launched the first synchronous test communication satellite, which assumed the satellite fixed-point regional meteorological forecast and communication and communication tasks. It was a success.

After the successful development of the "two bombs" (atomic bombs and hydrogen bombs) in the 1960s, in order to realize the modernization of national defense and continue the development of satellites, intercontinental missiles and spacecraft, it was necessary to establish a test platform at sea.

In 1965, Premier Zhou Enlai presided over the meeting of the Central Special Committee and decided to establish an offshore survey fleet to undertake the measurement of the seaborne point of the launch vehicle flight test and the salvage and recovery of the data cabin. It was responsible for testing the oceanic and meteorological surveys of the sea area and routes. According to the requirements of the higher authorities, the State Oceanic Administration issued the R&D and design mission of the ocean-going survey vessel in 1971 and named the ship “Xiangyanghong 10”.

The "Xiangyanghong 10" ocean-going survey vessel was designed by Zhongchuan 718, built by Jiangnan Shipyard. After careful design by hundreds of scientific and technical personnel and careful construction of tens of thousands of employees, it has undergone many trials and trials. In the year, the ship was built in October 1979.

Xiangyanghong No. 10 ship was the first large-scale comprehensive marine science survey and ocean-going communications ship developed by China for the long-range flight test of the long-range launch vehicle (code 718 project). Its mission was to survey the sea test range; release of medium- and short-term weather forecasts and dangerous weather warnings in the sea area, hydrology and meteorological support for test fleet and rocket flight tests; investigation of Earth's gravity field, magnetic field, provision of information for ballistic correction; protection of ocean communications and testing Transit and communication frequency forecast; survey ocean sounds, provide marine hydroacoustic data for underwater sounding arrays of rocket data cabins; undertake helicopter telemetry tasks; etc.;

According to the conventional classification of foreign ships, the ship undertaking the above tasks should be three different types of special vessels, such as marine survey vessels, weather vessels and communications vessels. However, due to financial difficulties at the time, the ship combined the three types of ships and was designed as a large multi-purpose ship. The ship has 10 decks, nearly 7,000 tons of steel, nearly 9,000 instruments and equipment, nearly 29 kilometers of pipelines, and more than 190 kilometers of cable laying. The construction amount was equivalent to three 10,000-ton cargo ships. In addition to a general board comprehensive marine survey ship all the various instruments and experimental work outdoors, and:

  • a large ship-borne helicopter systems, can meet a "Super Hornet" helicopter long-term use at sea requires;
  • Meteorological Center can provide short-term weather forecast and dangerous weather alarm;
  • all-weather ocean-going communication system can guarantee multi-network large-capacity all-day data communication and relay special message;
  • high-power ocean water acoustic system can continuously perform ocean water sound for a long time Test and sonar equipment test;
  • deep submersible work boat system.

In many marine survey vessels around the world, it can be said that there was no unique unique ship type similar to this one. Therefore, Japan’s World Ship magazine called it a large special ship when it reported the ship.

The first problem to be solved is the electromagnetic interference and communication test problems. The design team and the collaborative factory work together to ensure that the medium and short-term weather forecasts, communication frequency forecasts, dangerous weather alarms, ship-to-shore communication forwarding, information transmission, hydrographic and gravity surveys, and airborne telemetry in the test area are coordinated. . The evaluation was: "The meteorological support is reliable, the communication is not wrong, and it is 100% accurate."

The second is to overcome the ship stability problem. The survey ship often has to work under the harsh sea conditions, and the stability requirements are particularly high, and it is required to be able to withstand the 12-level wind wave. The design team calculated and compared through various methods, and studied the foreign regulations and calculation methods and their evolution and situation, and found out the appropriate wind pressure calculation value and its calculation formula and the initial heel angle correction.

Also, solve the ship vibration problem. According to the mission requirements, the ship is equipped with a large number of precision instruments and large antennas and tall masts. Any vibration of the ship will cause great harm to the equipment and the installation on board.

After hard work and hard work by the R&D design team, many problems have been solved. It is difficult to obtain such satisfactory results without the use of the unit's experience, the construction technology of the factory, and the tens of thousands of construction teams working hard for several years.

The ship began research and design in February 1971, started construction in July 1975, and delivered the ship in October 1979. After repeated offshore delivery tests and ocean-going professional expansion tests, it proved that the various performances of the ship have met or exceeded the design specifications stipulated in the tactical technical task book, met the requirements for use, and won the overall scientific and technological achievements of the National Defense Science and Technology Commission in 1979 design first prize.

The hull of "Xiangyanghong No. 10" has the bow and the tail of the cruiser. The twin-blade double rudder also has a propeller on the rudder, and the anti-rolling fins in the middle of the ship have excellent maneuverability and seaworthiness. In the 12th grade wind, you can insist on sailing, and in the case of any two tanks entering the water, it will not sink.

"Xiangyanghong No. 10" mainly undertakes investigation and research on oceanic hydrology, meteorology, hydroacoustics, physical chemistry, geophysics, geological features and marine life of the ocean, and serves the development of marine science and development of marine resources. In order to perform the research work, scientific research boat equipped with various equipment:

  1. Helipad and hangar. The apron area was 533 square meters, and the control tower and navigation platform are located at the top of the hangar.
  2. The front deck features a 28-ton crane for hoisting and recycling of deep submersibles.
  3. The complete meteorological system includes: meteorological rocket launching system, air ballooning system, wind and rain radar, satellite cloud image receiving, weather fax and other equipment, which can carry out medium and short-term weather forecasting.
  4. The high-power transmitter communication system and other communication equipment can simultaneously carry out long-distance communication in two directions and general communication of ships, ships, ships and ships. The long-distance communication antenna was elevated at the top of the front and rear sills, and numerous whip antennas are erected around the compass deck and the driving deck.
  5. Equipped with advanced navigation equipment including satellite navigation and positioning system, it can sail safely on a global scale and meet the high-precision positioning requirements of marine surveys. The satellite navigation positioning antenna was placed on the top deck of the hangar.
  6. There are 9 surveying booms on the two sides and the tail of the upper deck for sampling in the sea. 10 sets of cables and cable winches from 1,200 meters to 11,000 meters, water supply physics, water chemistry, hydroacoustic, geological, geomagnetic, biological and other tests and trawling operations.
  7. There are dozens of laboratories and computer rooms in various disciplines on board, which can carry out experiments, analysis and data processing on site.
  8. The fully air conditioned system provides a comfortable working and living environment. When the outside air temperature was -18 ° C to 35 ° C, the indoor temperature was maintained at 20 ° C to 27 ° C.

The ship completed the first launch of a launch vehicle test in the Pacific Ocean, the first Antarctic expedition and the mission of the Antarctic Great Wall Station, and the first South Pacific Ocean scientific mission, and achieved fruitful results.

In April 1980, the "Xiangyanghong 10" ocean-going survey vessel made its first voyage and participated in the full-range flight test of the long-range launch vehicle. The ship carried out high-altitude and sea surface meteorological observations, the weather forecast was accurate, the communication was unimpeded, the navigation operation was accurate, the electromechanical equipment was operating normally, and the ship operation was safe and secure.

In the first launch of the geosynchronous fixed-point communication satellite launch test in China, “Xiangyanghong 10” entered the Pacific Ocean three times, ensuring smooth, accurate and timely communication and information transmission; completed the sea area gravity survey, hydrological survey and test sea area 12 The hourly, 48-hour, and 72-hour weather forecasts have an accuracy rate of over 83% and have been awarded second-class collective merit twice.

In order to realize the grand strategic goal of “clearing the Chinese sea, marching into the three oceans, and boarding Antarctica” proposed by the State Oceanic Administration, “Xiangyanghong 10” sailed to the South Pole many times. In December 1984, the ship sailed to the South Pole, played an extremely important role in the Antarctic investigation and construction. It took 142 days to study in the Southern Ocean. After sailing a total of 26,000 nautical miles, it returned safely to Shanghai and won the first class.

On January 26, 1985, the "Xiangyanghong 10", which was conducting an ocean survey near the Antarctic Circle, encountered a strong storm of 12 or above. The maximum wind speed was 34 m / s, and the sea was like a mountain swell. The waves are as high as 11-12 meters. A burst of spray foam whizzed over the deck above the height of more than 30 meters. The front and rear decks of the inspection ship were covered by huge waves from time to time. When the hull was lifted by the swell, the propeller was exposed to the water surface and the maximum inclination of the hull reached 31°. And produced a lot of vibration and noise. The survey ship has withstood the test of storms above 12, which is the first time in the history of Chinese scientific investigation.

In May 1985, the “Xiangyanghong 10” ocean-going survey vessel was awarded the National Science and Technology Progress Special Award by the National Science and Technology Progress Awards Review Meeting. The award is one of 23 projects including atomic bombs, hydrogen bombs and nuclear submarines since the founding of New China. Its significance is huge, and it indicates that the ship has made a major contribution to the national defense cause; it has spurred the ship's R&D and design personnel to make persistent efforts and rebuild the glory. In 2006, “Xiangyanghong 10” was named one of the “Top Ten Famous Ships in China”.

"Xiangyanghong No. 10"
total length 156.2 meters / 508 feet
width 20.6 meters
draft 7.75 meters
displacement 13,000 tons
cruising speed 20 knots
power 9000 diesel engines 2 sets

"Yuanwang" No. 4 space survey ship

"Xiangyanghong" No. 10 was converted into "Yuanwang" No. 4 space survey ship in 1999. “Yuanwang No.4” was converted from the “Xiangyanghong No.10” scientific research ship for the first maiden voyage of Antarctica. The modification was rebuilt, updated, repaired and specially installed. There are 4 major categories and more than 400 engineering projects, which have undergone major renovations in aerospace surveying, marine meteorology, communication and navigation, hull structure, power plant, deck machinery and cabin. The modification project was undertaken by Jiangyin Chengxi Ship Repair Factory. In July 1999, the technical repair of the mid-repair was completed and officially delivered to the Marine Measurement and Control Department of the China Satellite Launch Measurement and Control System Department.

When experts concerned about the acceptance of the "Yuanwang No.4" ship, they believed that by adding new band large-scale telemetry equipment, they could meet the needs of international networking; by updating communications and computer equipment, the degree of computer networking was improved, and the data transmission rate was increased by hundreds. Times, and increased voice transmission; the ability to acquire meteorological information and weather forecasting has been enhanced, from the original single Pacific region to the three major oceans in the world; combined with technological transformation and renewal, deck antennas and equipment have been adjusted, The layout was more reasonable, which further improves the stability of the ship; its main technical indicators meet the requirements of aerospace measurement and control, and the living security conditions required for long-term operation of the crew at sea have also been significantly improved.

In October 1999, the Yuanwang No. 4 survey ship traveled to the Indian Ocean for the first time, and the first battle of the launch of the Shenzhou-1 spacecraft to launch the sea measurement communication mission was achieved. The ship realized a historical transition from training type to mission type. For more than 10 years, Yuanwang No. 4 has made 12 expeditions to the Pacific Ocean and the Indian Ocean, with a cumulative range of 180,000 nautical miles. It completed 14 times of “Asia Pacific No. 6”, “Xinnuo No. 2”, “Fengyun” and Shenzhou series spacecraft. The major scientific research test maritime measurement communication mission, successfully completed the task rate of 100%, and made outstanding contributions to China's space measurement and control business.

After serious damage caused by an explosion and fire in the engine room, in mid-2007 the ship was decommissioned.

At 5:10 am on August 5, 2007, Yuanwang No. 4 was berthed at the Jiangyin base and was hit by the “Ganghai 666” 10,000-ton coal freighter. The collision point was caused by the No. 4 ship’s oil tank. The fire broke out after 4 hours, but the monitoring equipment on board was seriously damaged and there were no casualties. The ship was then sent to the Jiangyin Shipyard for repair. The State Council attached great importance to the accident and asked the relevant departments to investigate the cause.

The port 666, which was fully responsible, was immediately controlled by two small gunships of the military. The main drivers such as the captain were taken away for information. The National Security Bureau and the headquarters set the incident as a terrorist attack. After the incident, the general assembly army gathered in Jiangyin City , and later found out that it was a port 666 (a shipping company in Tianjin with a ship length of 170 meters, responsible for transporting coal to Zhenjiang wall). The power plant, this voyage about 20,000 tons of coal, the driver on the Jiangyin section to avoid crossing the channel boat, called the left rudder due to the impact of the river can not return to the rudder after the crew wants to continue the left rudder to turn down (think 180 degrees U-turn), However, at this time, the port 666 of the port was not enough for the leeway of the water flow, which caused the port 666 to almost hit the Yuanwang No. 4 parked on the shore and slightly rubbed against Yuanwang No. 1.

Later, after testing, it was found that the main structure of Yuanwang No. 4 was damaged due to the fire and was scrapped.

Later, as the DF-21D target ship, Yuanwang No. 4 was hit by the Dongfeng 21d and then sinked during the towing process, and then dragged to the shallow water area for aground. In 2011, Tianjin Ship Recycling Factory spent tens of millions to buy and disassemble.



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Page last modified: 04-10-2019 18:25:34 ZULU