Class overview Name: Yuan-class Builders: Wuchang Shipbuilding, Wuhan Operators: People's Liberation Army Navy Preceded by: Type 039 (Song-class) Succeeded by: Type 039C In commission: 2006-present Planned: 20[1] Building: 5[1][2] Completed: 15[1][2] Active: 15[1][2] General characteristics Type: SSK Displacement: 3,600 t (3,500 long tons) (submerged) Length: 77.6 m (254 ft 7 in)[3] Beam: 8.4 meters[3] Draft: 6.7 meter square.[3] Propulsion: Diesel-electric, 1 shaft, AIP Speed: 20 knots (37 km/h; 23 mph) Test depth: 400 m Complement: 38 Armament: 6 × 533 mm (21 in) torpedo tubes, Anti-Ship missiles