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Type 815 Dongdiao-class Electronic Reconnaissance Ship (AGI)

The Chinese naval electronic reconnaissance ship is often named after a planet or large star. The electronic reconnaissance ship is a naval service ship used for electronic technology reconnaissance. Radio receivers, radar receivers, terminal demodulation and recording equipment equipped with various frequency bands. Type 815 was initially named as Dong-Diao (meaning East Investigate) 232, but subsequently, the name was changed to Beijixing [North Star] after a new naming convention adopted by PLAN.

The main task of this type of ship is to monitor and analyze the electronic signal intelligence, and may also include missile trajectory measurement and tracking in the tactical ballistic missile test.

The 815 reconnaissance ship and the improved 815G have been manufactured since the late 1990s. The 815/815G reconnaissance ship has a displacement of 6,000 tons, a hull length of 130 meters, a width of 16.4 meters, and a draught of 6.5 meters. It is equipped with a diesel engine and a double-shaft twin-rudder propulsion device with a maximum speed of 20 knots. In addition, it has generators that power shipboard radio electronics. The defensive weapons of the 815/815G reconnaissance ship are relatively weak, and the basic configuration is a double-mounted 25mm and 37mm gun. Since the Uranus, the reconnaissance ship has begun to have a more advanced 30mm gun that can cope with several air threats as well as attacks from enemy light surface ships. In order to carry out the tasks of transportation and reconnaissance, the 815/815G reconnaissance ship can carry a helicopter, and the hangar and take-off and landing positions are all at the stern.

The Gulf War shocked the Chinese military. The US military’s methods of warfare subverted the traditional military thinking of the Chinese military. At that time, the Central Military Commission set up a special working group to conduct research and argumentation and discuss China's military development path. The investigation team of the Military Commission went to many units to investigate. A lot of projects have been born, especially military projects in electronics. But the investment at that time was still too little. Some of the research results were not completely translated into military achievements at the time. The 815 electronic reconnaissance ship is produced in this context. The plan at the time was to build six 815 reconnaissance ships. After the completion of the first construction, the subsequent construction was stopped because there was no funding support.

The "North Star" electronic reconnaissance ship, number 851, was China's second latest generation of dedicated intelligence gathering ships. The ship has added helicopter decks and hangars, making China's intelligence gathering ships the first to have helicopter capabilities. It is supposed to be commissioned in the second half of 1999 and was built by Hudong Shipbuilding (Group) Co., Ltd. It used the name "East Tune 232" and is now the 851 "North Star" ship.

Type 815 was formerly named as Dong-Diao (meaning "East Investigate") (Pennant #232), but subsequently, the name was changed to Polaris after new naming convention adopted by PLAN. The reconnaissance ship "EAST-232" was China's newest dedicated intelligence-gathering ship, supposedly commissioned in the second half of 1999, with an obvious exterior feature - an eye-catching mainmast and three satellite communication antennas. From the ball antenna and a variety of electronic equipment to see the characteristics of the ship's main task may be to carry out electronic signal intelligence monitoring and analysis. It may also include missile trajectory measurement and tracking during tactical ballistic missile testing. "East 232" ship increased helicopter deck and hangar, making China's intelligence gathering ship for the first time with the ability of helicopter use.

"East 232" electronic reconnaissance ship full load displacement of 6,000 tons, 130 meters long, 16.4 meters wide, 6.5 meters draft, fitted with two diesel engines, biaxial propulsion, the maximum speed of about 20, the ship also fitted with a 37 mm Cannon and two 25mm guns.

The ship has a long main-deck, which extends to the helicopter deck, which increases the height of the freeboard and increases the space inside the ship. The first part has a slight sheer and the front section also has a fender wall. These measures are designed to reduce the waves on the deck and make the ship suitable for ocean navigation. The superstructure is long and concentrated in the middle of the hull. It is based on a deckhouse with bridges, chimneys and hangars arranged from front to back. The bridge is taller, with three floors on the deckhouse, and a tall four-legged plaque on it. The ship's distinctive features - a striking main mast and 3 satellite communications antennas. A parabolic antenna and pedestal are located on the top of the bridge, at the top of the chimney and at the top of the superstructure at the back of the chimney. There is also a dome-shaped device similar to the observatory in front of the bridge, which is estimated to be equipped with photoelectric tracking and observation equipment. The upper deck of the stern is a helicopter flight deck.

Judging from the arrangement and equipment of the ship, the ship can be used for missile tracking in addition to traditional intelligence gathering, that is, it has certain functions of an aerospace survey ship. The large masts on the ship can be installed with many radar antennas and reconnaissance equipment. The three parabolic antennas for tracking are small in diameter, and only the tactical missile tracking is the main task. Some self-defense weapons were installed, a double-mounted 37mm gun was placed on the upper deck in front of the superstructure, and two double-mounted 25mm guns were located on the left and right sides of the hangar. From the model exhibited at the Maritime Exhibition, it is also visible that the front end of the helicopter flight deck is also provided with a 324 mm torpedo tube.

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Page last modified: 19-07-2021 18:26:47 ZULU