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fighting ships of the world

PEOPLE`S LIBERATION ARMY NAVY (PEOPLE`S REPUBLIC OF CHINA)

SUBMARINES

CHANGZHENG 401 nuclear-powered submarines (project 091, 1974-1990)

Changzheng 405 2010

Name No Builder Laid down Launched Comp Fate
长征 401 <Changzheng 401> 401 Bohai, Huludao 1968 26/12/1970 1/8/1974 stricken 2001
长征 402 <Changzheng 402> 402 Bohai, Huludao 1974 1977 30/121980 stricken 2005
长征 403 <Changzheng 403> 403 Bohai, Huludao 1980 1983 25/12/1984 in service (2017)
长征 404 <Changzheng 404> 404 Bohai, Huludao 1984 1987 27/10/1987 in service (2017)
长征 405 <Changzheng 405> 405 Bohai, Huludao 1987 8/4/1990 12/1990 in service (2017)
 

Displacement standard, t

 

Displacement normal, t

401, 402: 4500 / 5000

403-405: 4800 / 5550

Length, m

401, 402: 90.0

403-405: 98.0

Breadth, m

9.00

Draught, m

7.40

No of shafts

1

Machinery

2 geared steam turbines, 1 nuclear reactor

Power, h. p.

12000

Max speed, kts

12 / 25

Fuel, t

nuclear

Endurance, nm(kts)

practically unlimited

Armament

401, 402: 6 - 533 TT (bow, 20 or 36 mines)

403-405: 6 - 533 TT (bow, 20, inc. Yin Ji-82 SSM (4 C-801) or 36 mines)

Sensors

Flag radar, SQZ-3, SQW-3, SQG-2B sonars, type 921-A ECM suite, CCS

Complement

75

Diving depth operational, m

300

Ship project history: The first nuclear-powered vessels and the first submarines designed and built in China, by the Huludao Shipyard. Considerable help with the powerplant was received from West Germany. They have an Albacore-type teardrop hull. Changzheng 401 underwent prolonged trials, and construction of further units was delayed by powerplant problems. The last three units of the class are longer than the original boats.

Modernizations: late 1990s, all: + new anechoic plating, ability to use wire-guided Yu-6 torpedoes

late 2000s, all survived: sonars were replaced by H/SQ2-262B sonar suite

Naval service: No significant events.

Changzheng 402 1990

Changzheng 404 1996

Ivan Gogin, 2016-17