Dahua-Class - 891 Bi Sheng Overview
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 has also been completed, and in October 1997 Joined active service in October (the ship number is test 970). However, the ship did not have its own name like other naval ships in the five years from its service to 2002. It was not until October 2002 that the ship received the special name "Bi Sheng" and its hull number was changed to 891.
As the first comprehensive maritime test ship of the Chinese Navy, the Bi Sheng ship is designed to realize the maritime debugging, system fusion and live-fire launch test of different weapon systems and radar electronic equipment on a test platform, and can be tested on the ship The system conducts certain analysis and evaluation. In the past, a complete combat system needed to test multiple sub-system functions on multiple different ships. Although possible inter-system compatibility issues have been considered in the installation and testing, and this situation has been avoided as much as possible. However, when the sub-systems are truly integrated into a large system, a series of problems will still occur, which seriously affects the rapid formation of ship combat capabilities. The Bi Sheng can be used as an imaginary new combat ship in the future. Its stable platform and large enough internal space can fully meet the needs of a variety of different weapons, radars, and electronic equipment for separate or joint debugging and testing at the same time.
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 since the 1990s). The ship provides 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 of the bridge to provide for the installation of a variety of weapons systems enough space, the rear of the hull has a length of about 30 meters wide large helicopter landing platform, although there is no set hangar, but large enough to meet the landing platform and medium-sized helicopter.
The power plant of Bi Shengjian is two high-speed diesel engines, which is also the most widely used marine diesel engine on various destroyers built after the 1990s, and its performance is relatively stable. The total output power of the two diesel engines is 14,000 horsepower, with twin propellers and twin rudders. The bow is also equipped with side thrusters to improve maneuverability when sailing at low speeds and when leaving and docking. But relative to its larger displacement, the power of the power system is still significantly lower, making the Bi Sheng ship's top speed only 18 knots. However, as a non-combat ship, the requirements for high-speed performance are not high. A speed of 18 knots can meet the requirements whether it is navigating at sea or testing weapon systems.
After the Bi Sheng ship entered service in the mid-1990s, it began to undertake heavy weapon system test tasks, most of which were related to the construction of domestically produced third-generation destroyers. High-tech weapons with the technological gap between the world's advanced equipment. Whether these weapon systems can finally successfully complete the development, testing, and finalization work is directly related to the construction of the third-generation destroyers that are of great significance to the development of the Chinese Navy. At that time, it was not known what weapon tests Bi Sheng ship undertaken. It was not until the beginning of the 21st century, with the completion of various types of weapon system finalization tests and the beginning of the construction of domestically produced third-generation destroyers, some test projects gradually became apparent. Come out, the most interesting of these are the new ship-to-air missile system, ship-to-ship missile system, and medium and small-caliber naval gun system.
