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China - People's Liberation Army Navy
Type 091 (09I) Han class Attack Submarine - SSN
type 091 09i han class attack submarine ssn people's liberation army navy china plan 02x 
Unit / Name Name (Han) Builder Launched Commissioned STATUS
SSN 401 PLANS Changzheng 1 长征1 Bohai - August 1, 1974 decommissioned
in 2000
SSN 402 PLANS Changzheng 2 长征2 Bohai - December 30, 1980 decommissioned
in 2005
SSN 403 PLANS Changzheng 3 长征3 Bohai - December 25, 1984 ACTIVE
SSN 404 PLANS Changzheng 4 长征4 Bohai - October 27, 1987 ACTIVE
SSN 405 PLANS Changzheng 5 长征5 Bohai - December 1990 ACTIVE
China Shipbuilding Industry Corporation (CSIC) - Bohai Shipbuilding Heavy Industry Co., Ltd. (BSHIC), Huludao, Liaoning Province, China
5000 tons (submerged)
98 meters (321 feet 6 inches)
Beam: 10 m (32 ft 10 in)
Draft: 7.4 m (24 ft 3 in)

Speed: 25 knots (46 km/h)
Range: unlimited
Complement: 75

Nuclear propulsion
1 pressurized water reactor (PWR), 90 MW
2 steam turbines (12000 shp)
1 shaft / 1 propeller

6 x 533mm torpedo tubes
for a mix of
YU-1/3/4/6 heavy-weight torpedoes
YJ-82 anti-ship missiles (SSM)
naval mines
DUUX-5 sonar
Type 921A radar warning receiver

The Type 091 (Chinese designation: 09-I; NATO reporting name: Han class)
... is a first-generation nuclear-powered attack submarine produced by China. It was the first nuclear submarine employed by the People's Liberation Army Navy Submarine Force, and the first indigenously-produced nuclear attack submarine in Asia.

The Chinese naval nuclear power program started in July 1958 when the Central Military Commission gave approval to start the Type 091 submarine project. Mao Zedong declared that China would build nuclear attack submarines "even if it took ten thousand years." Peng Shilu was the first chief designer of this project. The first submarine in the class, Changzheng 1 ("Long March 1"), was commissioned in 1974; the last was launched in 1990. In 1983, Peng moved to the civilian development of nuclear power plants, and he was succeeded at the nuclear submarine project by Huang Xuhua.

The Type 091 has operated mainly in local waters, and has been involved in several incidents. One submarine shadowed the Kitty Hawk carrier battle group in October 1994, provoking a stand-off. Another entered Japanese territorial waters near Ishigaki Island (part of Okinawa Prefecture) near Taiwan in November 2004, causing the Japan Maritime Self-Defense Force to go on alert for the second time since the Second World War; China apologized for the trespass and blamed "technical reasons" on the submarine.

The boats have received major upgrades and numerous refits since commissioning. They have six 533 mm (21 in) torpedo tubes and carry 20 torpedoes. Alternatively, they can carry 36 mines in their tubes. It is capable of firing sub-launched variants of the C-801 anti-ship missile as well as a range of indigenous and Russian torpedoes or mines. All remaining hulls have been refitted with new sonars, with Type H/SQ2-262B sonar manufactured by No. 613 Factory replacing the original Type 603 sonar on board. Anechoic tiles were added later to reduce noise levels.

source: wikipedia

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