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Type 033G Wuhan-class Trials Submarine

The single unit Wuhan-class Trials Submarine is a Modified R-class submarine with YJ-1 (CSS-N-4) anti ship missiles launchers. The six YJ-1 missiles have active radar homing to 40 km (22nm) at 0.9 mach sea-skimming and has a 165kg war head. It's also armed with 533mm torpedoes with passive homing to 15 km at 40 knots and has warhead of 400 kg. The sub can also carry 20 mines in lieu of torpedoes. The six missile tubes are built into the casing abreast the fin and elevate to fire much as in the Soviet Juliett class. To provide target acquistion an additional radar mast (snoop tray) is mounted between two periscopes.

This sub was built as a trials SSM platform, and at one time it was thought other R-class submarines might be converted in due course, but they were not. In 1976, No.701 Institute (later Wuhan Ship Development and Design Institute) experimentally added the YJ-8 (C-801) anti-ship missile system and its associated Type 358G fire-control radar to the Type 033 submarine. But the boat had to surface to launch missiles, and it lacked any over-the-horizon targeting.

While mass production of the 033 submarine, China also opened in the mid 1970s the 033G submarine launches Eagle Strike 8 anti-ship missile 033G submarine launches Eagle Strike 8 anti-ship missileExhibition of the strengthening of 033 submarines at sea attack improved design, namely 033 modified (domestic type known as 033G, and abroad referred to as "Wuhan" level). The most important anti-ship weapon of the Type 033 submarine is the imitation of the old Soviet direct torpedo.

In 1976, Li Jiangqiu and Yang Huansheng of No.701 Institute, as the engineers in charge, made improved design for adding anti-ship guided missile in the improved version conventional-powered submarine, and Feng Yunlong as the engineer in charge, designed the ship board pressure-resistant missile storage and launching tube of the submarine. The retrofit work began in Wuchang shipyard in 1980, and in 1985, the retrofitted submarine successfully made the missile sea launch test.

Although it is fast, it had a short range and poor accuracy. The submarine's own safety during combat is not ideal. At this time, the new attack submarines of the world's major naval equipment (whether conventional or nuclear) have the ability to launch anti-ship missiles (some also have the ability to launch underwater), so that the submarine's ability to attack sea Improved quality.

According to the combat mission that the Chinese Navy faced at the time, the Chinese Navy also needed a new attack submarine capable of launching anti-ship missiles. Therefore, the development of the 033G submarine is a correct decision to conform to the new development trend of the world's conventional submarines. Due to technical limitations, 033G does not use underwater033G submarineFor launch technology, anti-ship missile launchers and related hydraulic launchers are arranged in the superstructure on both sides of the hull of the 033 submarine. In combat, after the submarine surfaced, the launch tube was raised to a 15-degree elevation angle by the hydraulic device, and the anti-ship missile was launched . Three launchers are arranged in series on both sides of the hull, and a total of six anti-ship missiles are available. The ship can still carry torpedoes of the same number as 033 submarines, and its overall ability to attack the sea was very strong at the time.

The anti-ship missile used by 033G is China's first small solid anti-ship missile "Eagle Strike 8", which was successfully developed in the late 1970s. Compared with the previous "Upstream" series and "Sea Eagle" series, the "Eagle Strike 8" "It has the characteristics of small size, light weight, high power, strong anti-interference ability, and sea-skipable flight.033G submarineInstallation is less technically difficult. And the small size can minimize the influence of the hull line shape change on the submarine's navigation performance.

Compared with the 033 submarine, the displacement of 033G has increased by more than 300 tons (water displacement of 1,650 tons and underwater displacement of 2,000 tons). The anti-ship missile launcher has been added to the outside of the submarine, but the navigation resistance of the submarine has also increased. Speed and maneuverability are reduced compared to Type 033 submarines (15 knots on water and 13 knots on water).

The construction of the 033G submarine started at the Wuchang Shipyard in 1980, and was launched in 1983. The first live missile launch test of the maritime missile in 1985 was successful. In the following months, two live-fire launches were also successful, and the new radar, fire control and firing commander equipped on the boat also showed a stable state. In the mid-to-late 1980s, researchers also adopted some noise reduction measures for the submarine, which reduced the noise of the submarine by 12 decibels, improved the concealment of the submarine, and increased the sonar on board. After further improvement, the 033G submarine passed the national design finalization in June 1986, and its technical performance fully complied with the original design indicators.

033G did not build a follow-up boat. Due to the backward way of launching anti-ship missiles, the boat not only destroyed the good streamlined hull of the original 033 submarine, increased navigation resistance and noise, but also failed to achieve the lack of underwater launch missiles. Greatly reduced their viability. At the time, the new submarines developed by the Soviet Union and European countries had achieved the ability to launch anti-ship missiles underwater (vertical launch or launch through torpedo tubes), with strong attack concealment and suddenness. Relatively speaking, 033G technology was already lagging behind, and it was difficult to adapt to the development of submarine technology and the requirements of the maritime combat environment in the mid-to-late 1980s. reported in 2009 that Boat 351 may have been out of service since the late 1990s, though Haze Gray reported it in service as of 2001.

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Page last modified: 25-12-2019 18:42:43 ZULU