Dahua Class (NATO : Wuhu-B)
Based on the ardent demand for test ships in various fields, the Chinese Navy began to build a multi-functional comprehensive test ship in the 1990s, and the first Type 909 specially designed weapon equipment test ship was launched in December 1997. The second unit, Type 909A 892 Hua Luogeng, entered service after an interval of 15 years, and was modified by the addition of an enclosed aft mast, and the substituion of an aft weapons test platform for the stern helicopter deck. Two more units of the kindred Type 910 class soon followed, with the stern area mofified to support ASW testing.
After entering the 1990s, with the development of a series of new weapon systems in China and the design of third-generation destroyers and frigates, the design of the first comprehensive test ship of the Chinese Navy was also completed. The appearance of these ships is simple and refined. In order to increase the internal volume, a long bow ship type is adopted. Its task is to conduct sea tests on the shipboard equipment under development-including missiles, naval guns and electronic equipment, and conduct corresponding analysis and analysis. Evaluation. The ship is equipped with various weapon system test platforms, which can simultaneously carry out the test and appraisal of many types of naval weapons and equipment such as missiles, naval guns, radars, and electronic jamming. There is also a special cabin for scientific research and experiment personnel, which improves the working conditions of the experiment.
In order to provide a stable offshore test platform for new weapons and ensure sufficient internal space for installing various systems, the Bi Sheng ship carried out a new design in terms of appearance. The hull adopts a large oblique bow, a small aspect ratio, and a long bow design. The front part of the hull is obviously floating (this type of ship is also a design commonly used by new ships in the world after the 1990s). The ship provided strong seaworthiness, stability and maneuverability against wind and waves. The superstructure of the hull is relatively tidy and can be roughly divided into three parts: front, middle and rear. The front part of the hull provides enough space for the installation of various weapon systems.
Hualuogeng No. 892 and Bi Sheng No. 891 tested a large number of naval weapons and electronic equipment of the Chinese Navy. Including YJ-62” (YJ-62), CTF-1 long-range strategic cruise missile, Changjian-10 cruise missiles, Haihongqi-7, Haihongqi-9, Haihongqi-16 and other air defense missiles, YJ-83 missile anti-ship missiles, etc. At the same time, the navy tested Sea search radar, air search and alert radar, including active phased array radar equipped with 052C, roof multi-function guidance radar imitating Russia, music station radar, etc. At the same time, the latest navy command system was tested. The mission also includes testing The Navy’s short-range defense weapons, such as the 730 near-defense gun and 1130 near-defense gun, as well as the 87-type anti-submarine deep bomb, electronic countermeasure systems, satellite communications equipment, etc. It can also test the helicopter training activities of naval aviation.
James C. Bussert, employed at the Naval Surface Warfare Center in Dahlgren, Virginia, is the co-author of “Peoples Liberation Army Navy Combat Systems Technology, 1949-2010”, nted that the obvious benefit of studying the technologies that appear on 891-893 is to preview next-generation systems. The anomaly of finding systems installed after they already have been on active warships points to another benefit. When China copies imported systems, it needs to test these reverse- engineered models, and that would be done on 891-893. This reveals which foreign systems have been copied, or reverse engineered, that require at-sea testing. For example, the imported Russian radars usually have slight but discernible physical differences in the antenna structure or identification friend-or-foe from the Chinese copies.
891 Bi Sheng comprehensive test ship
The 891 Bi Sheng comprehensive test ship was the first specially designed equipment comprehensive test ship of the Chinese Navy. It was commissioned in December 1997. The lead Dahua class ship frequently changed hull numbers. Bi Sheng ship (AEI891) service, the original hull number 909, has also been using the number 970, then in accordance with the ship service regulations changed to 891, was only the hull number, no ship name, the Navy until 10 October 2002 before the ship entered service. On October 10, 2002, the Navy officially approved the designation of the "Bi Sheng" ship.
With a light displacement of 4,630 Tons, it included the Eagle 62 attack ship missile, Haihongqi 9 and Haihongqi 16 air defense missiles, etc., were all marine weapons that had been tested and verified by the ship.
Bi Sheng, Xian No. 891, the People's Liberation Army Navy (PLAN) comprehensive test ship was equipped with various weapon system test platforms, which can simultaneously carry out various types of naval weapon equipment test and appraisal such as missiles, naval guns, radars, and electronic jamming. In recent years, the ship has played an irreplaceable role in the finalized production of certain types of shipborne electronic countermeasures systems, new general-purpose supersonic ship-to-ship missiles, new ship-to-air launchers, and a new generation of fleet air defense radars.
The rear part of the hull had a large helicopter take-off and landing platform about 30 meters long. Although there is no hangar, the platform is sufficient for taking off and landing large and medium-sized helicopters.
In addition to weapon systems, Bi Sheng ship is also a test platform for a new generation of ship-based combat command systems and integrated electronic warfare systems. Since a variety of different types of ship-based weapons can be installed on the ship, it can be integrated and integrated with the new generation of combat command systems. Test, so the test results have obvious advantages compared to previous tests on different platforms, and at the same time, it can quickly find problems in system integration.
Type 909A Hua Luogeng (AEI892)
The construction and use of the Bi Sheng ship greatly accelerated the development of new weapons and equipment of the Chinese Navy, and played an extremely important role in the equipment of the third-generation destroyers and frigates and the new generation of main battle ships. It is foreseeable that the ship will continue to have an important and positive impact on the modernization of the Chinese Navy and the development and development of new generation shipborne weapons. What is even more surprising is that the construction of another sister ship of the Bi Sheng ship has begun and will become the second comprehensive maritime test ship of the Chinese Navy. The construction of the second test ship fully demonstrated that the development and test projects of the Chinese Navy’s new weapon system are very arduous, the tasks and time are relatively urgent, and a Bisheng ship can no longer meet the requirements. It is believed that after the "Hua Luogeng" comprehensive test ship with string number 892 entered service, the development of new weapons of the Chinese Navy will undoubtedly be greatly accelerated, and the modernization of the Chinese Navy's ship-borne weapon system will be improved.
Hua Luogeng (AEI892) is a type 909A marine weapon comprehensive test ship of the Chinese People's Liberation Army Navy (PLAN). At this stage, the mission difference between the ship and the Bisheng ship is that the former is responsible for the test and verification of the vertical launch system and the cluster missile, and the latter is responsible for the test and verification of the single launch box and launcher. On it, the FL3000N short-range air defense missile was tested and finalized. All newly developed naval attack ships or anti-aircraft missiles will be tested on this ship first, and only the verified missiles will be put into production and deployment; this ship was delivered in 2012 The ship is in service, and the details of its performance are not clear to the outside world. Of course, the two ships also undertake major verification tasks for the new-generation ship’s reconnaissance system, data link and command and control system.
The emergence of the 892 ship aroused great interest among military observers. The most eye-catching was the integrated so-called "invisible mast". However, one thing is certain, that is, the degree of electronic informationization of this ship will be extremely high (a lot of places are left to be installed). Its mast adopts a mast design similar to that of the American DDG-1000 and the American Antonio-class landing ship. Because it is a test ship, it shows that its technology was likely to be applied to China's new naval ships.