Characteristics of minesweeper

Since 1970s, some countries have successively developed minesweepers with FRP hull structure, remote-controlled minesweepers and air-cushion minesweepers, which greatly improved the safety of sweeping highly sensitive mines. Country: USA

Type: hunting/minesweeper

Name of ship: Avenger class hunting/minesweeper.

After World War II, the US Navy once neglected the construction and use of anti-mine ships, resulting in heavy losses in local naval battles and conflicts. In the late 1970s, the US Navy decided to strengthen the development of anti-mine ships, and the Avenger class hunting/minesweeper was one of them.

The first ship of this class started construction in June 1983, and was launched in June 1985 and September 1987 & 127. Joined active service in June. As a relatively new type of deep-water anti-mine ship, Avenger has many unique features. First of all, the ship's hull is made of multi-layer wood structure, and the surface of its outer plate is covered with multi-layer glass fiber impregnated with epoxy resin. The hull has high strength, impact resistance and&127; Friction resistance and other characteristics. Many equipment and parts on board are made of non-magnetic materials such as aluminum alloy and copper. Secondly, mine detection equipment is more advanced. The ship is equipped with L part AN/SQQ-0 variable depth sonar (the last five ships are equipped with AN &；; 127; SQQ? Type 2 sonar). This type of sonar is a unit structure, which can meet the latest requirements of data processing, display and pattern formation. Third, the mine-clearing system is relatively perfect. The An /SLQ-48 anti-mine system on the ship is mainly composed of EX-l 16MOD-O mine-extinguishing submersible. & amp 127; The working depth of the submersible is over 100 meters, and it is driven by a motor with a speed of 6 knots. The operator on board realizes power supply and control through1500m cable. In addition, the head of the mine fire extinguisher is equipped with sonar, the head and tail are equipped with cameras, as well as lighting lamps and explosives. In addition, the ship is also equipped with a mechanical minesweeper and a /SLQ? 7(V)2 magneto-acoustic induction minesweeper, etc. Fourth,&; 127; The ship navigation system has high precision. This ship is equipped with Los Angeles /SSN? Integrated sonar, Los Angeles /WSN gyro compass and echo detector. An/SNN-2V & 127; The accuracy of integrated navigation system in processing and sending navigation data and target indication data is several meters, which can ensure high-precision determination of ship mine position coordinates.

In order to ensure the slow operation and keep the ship basically motionless when searching for mines, the ship is equipped with two low-speed propulsion motors, an L-shaped propulsion device and a pitch control propeller. Avengers are 68.3 meters long, l 1.9 meters wide and 3.5 meters draught. The full-load displacement is 13 13 tons; The power plant is equipped with four waxa L-l6 16 diesel engines, with a total power of 600 HP and a maximum speed of 14 knots. The ship is equipped with two 12.7 mm machine guns. Pioneer Shipbuilding Co., Ltd. is the largest shipbuilding enterprise in Karelia, Russia, and the only national strategic enterprise in the region. It is mainly responsible for the joint development of various ships with the Navy, Ministry of Finance, Ministry of Economic Development and Trade, Federal Shipyard and Brother Shipyard, and is also the only manufacturer of 12650 Gem Base Minesweeper manufactured and maintained by the Russian Navy in the Northwest Federal District.

Karelia * * * and People's Republic of China (PRC) Chairman Tarnum Doff emphasized that with the joint efforts of local governments and business leaders in Karelia, the production scale of Pioneer Shipyard was greatly improved in 2003, with an increase of 70%, and the proportion of military ship manufacturing and maintenance business increased from 28% in 2002 to 54%. In June 2003, Commander-in-Chief of the Russian Navy Admiral of the fleet decided to expand the basic maintenance and manufacturing scale of warships in this factory. In the national defense procurement plan of 2004-2005, Pioneer Shipyard obtained the maintenance business of two base minesweepers, two minehunters, 16 motorboat, 1 teaching boat and the manufacturing business of various military ships.

"Pioneer" Shipyard has also actively strengthened contact and coordination with potential customers at home and abroad, participated in the bidding activities for the manufacture of various military ship equipment, and obtained the export license of the base minesweeper. The Enterprise Information Office announced that 90% of a 12650 "Gem" base minesweeper under construction in the factory has been completed, and the national procurement payment has been put in place. The factory leaders decided to complete the construction work as soon as possible and deliver it to the Federal Security Agency Border Service on schedule. The value of the minesweeper delivered by the factory to the federal border guards is usually around130,000 rubles, and the value of this new minesweeper has reached 400 million rubles.

In 2003, Pioneer Shipbuilding Co., Ltd. won the bid for the special diving speedboat рвм-376 of Zeiske Hydropower Station of Russian Energy and Power Company. At the same time, it is also studying the possibility of building an ocean diving ship рв- 14 15 for the navy, and it is the flagship of the naval maritime fleet.

12650 Minesweeper in Gemstone Base is mainly used to discover, identify and destroy all kinds of submerged mines, anchor mines and drifting mines in ports, routes and offshore waters, and to protect the safety of submarines, surface ships and various auxiliary ships when they go to sea and return. It is 50 meters long and 9 meters wide, with a standard displacement of 430 tons, a maximum displacement of 460 tons, an average draught of 2 meters, a maximum speed 14 knots, a maximum voyage 1500 nautical miles, a cruising time 15 days and a crew of 45 people. It is equipped with diesel power plant, contact and towed minesweepers, various electromagnetic minesweepers and so on.

The Republic of Karelia is located in the northwest of the European part of Russia, between the White Sea, Lake Radoga and Lake Onega. The territory is 650 kilometers long from north to south and 250 kilometers long from east to west. Karelia borders Finland in the west, Leningrad and vologda in the south, Arkhangelsk in the east, Murmansk in the north, the White Sea in the east, and Lake Ladoga and Lake Onega in the south. Since its appearance at the beginning of the last century, mine-sweeping ships have been widely used in wars. Since 1970s, some countries have successively developed minesweepers with FRP hull structure, remote-controlled minesweepers and air-cushion minesweepers, which greatly improved the safety of sweeping highly sensitive mines.

After more than two months of maritime mine-clearing operations, none of the mines of the originally formed East China Navy Minesweeper Brigade were swept. Moreover, because the horsepower of the 25-ton landing craft is too small and the minesweeping rope is too thin, three of the four minesweeping ropes are broken, and the minesweeping is forced to stop.

1in June, 953, China purchased the technical data and equipment of 254K and 254M minesweepers from the Soviet Union. This type of minesweeper is also called T43 minesweeper. The domestic imitation number of this class ship is 6605, with a standard displacement of 520 tons and a full displacement of 590 tons. 66 10 is an improved model of 6605, and the first batch of four ships started construction in July 1956. In the early days of the founding of the People's Republic of China, the maritime patrol, the anti-American aid to Vietnam, and the Sino-Vietnamese Xisha naval battle, these two types of minesweepers not only participated in the war every time, but also performed well in actual combat.

The 170-ton 057K harbour minesweeper suitable for mine clearance in Danshui port is a 170-ton 057K harbour minesweeper suitable for mine clearance in Danshui port. It is the largest number of minesweepers in the mine-clearing force of China Navy, and its first boat was delivered in 1962. Since 1967, China Navy has developed a low-magnetic steel hull structure minesweeper for magnetic mines, which is the origin of 058 Li Anyun class minesweeper.

In 1976, China Navy proposed to develop a new generation of harbor minesweeper with integrated boats and tools. The first boat was completed in 1987 and entered active service in 1988. This is the 082 minesweeper, which is called Wosao class in western countries. This type of boat can be controlled not only by the centralized control room, but also by the 3 12 remote minesweeper on the podium.

In the new century, at least two new types of minesweepers have appeared in China. The first thing that appeared was a western minesweeper named "Wozang Class". This class ship has a full displacement of 575 tons, a total length of 55 meters, a width of 9.3 meters and a draft of 2.6 meters, and is equipped with 1 type double 25mm guns. After the "Wozang" class, it was quickly confirmed by foreign countries, and another new minesweeper "Wochi" class appeared. This class ship is about 65 meters long, which is the largest known ship in China.

A new breakthrough in the performance of minesweeper

In a certain sea area of the East China Sea, a minesweeper brigade conducted more than 50 minesweeping trainings in one training day by using the self-developed "real-time monitoring system for minesweeping". It is reported that after adopting the new achievements, four problems that have long plagued the troops, such as mine fuze easy to close, mine clearance result difficult to check, mine clearance process difficult to monitor, and repeated salvage time-consuming and laborious, have been effectively solved, and the training efficiency has been improved nearly five times. Traditional mine-clearing training is intensive, mine-laying and salvage efficiency is low, and mine-clearing effect is difficult to monitor. Since last year, a mine-sweeping brigade equipped with our army's new mine-hunting and minesweeper has achieved breakthroughs such as real-time mine clearance of a certain mine, first-time mine clearance of various fuzes, first-time real-time remote mine clearance and first-time real-time mine clearance monitoring through independent innovation. They also rely on the independent innovation of the information platform to improve the mine fuze by using modern information technology, which makes the training effect more intuitive. By analyzing the test data, the success rate of mine clearance has been greatly improved, which indicates that our army's maritime mine clearance ability has jumped to a new level. How to fight, how to practice. 12 after the training, they offered to train the new minesweeper with "whole process, whole content and all elements" to fully grasp the performance characteristics of the new equipment in the actual combat environment, so that the theoretical data of the new minesweeper can be fully tested in actual combat and the operational potential of the new equipment can be further tapped. During the training, they also gathered wisdom to tackle key problems, explored and formed a series of effective intelligent mine clearance methods, and conducted strict comparison tests on the task grouping and mine clearance routes of ships, accumulating a large number of first-hand data, which provided important reference for future maritime operations.