Type 091 was the first Chinese nuclear-propelled submarine design. Type 091 also known as Han class were produced by the Huludao Shipyard in Liaoning Province.First two submarines Han class may no longer be operational while remaining boats underwent an extensive upgrade and are fully operational with the People's Liberation Army Navy (PLAN).
China started the construction of the water-drop shaped 1st Type 091 SSN started in 1968. First of these double-hulled submarine was launched in December 1970 and entered the PLA Navy Service in August 1974.
Upgraded Type 091 nuclear submarines were fitted with the acoustic tiles to reduce the submarine's acoustic signature. These upgrade also allowed these submarines to use latest Chinese wire-guided anti-submarine torpedo and YJ-82 anti-ship missiles from the submarine’s 533mm torpedo tubes.
General Specifications of Type 091 Han Class Nuclear-Powered Submarine
Surfaced: 4,500 t
Submerged: 5,550 t
403-405: 106 m
Beam: 10 m
Draught: 7.4 m
surfaced: 12 kts
submerged: 25 kts
Six 533 mm (21 in) torpedo tubes
Total weapon load: Upto 20 torpedoes/anti-ship missiles