The first Qing class built for Chinese Navy was launched last year and will be going through the sea trial this month 6/2011 which will include the firing of CJ-10K LACms with a range of 1,500 KM.
The deal was signed between Wuhan-based China State Shipbuilding Industrial Corp (CSIC) and Pakistani Government in April 2011 is for 6 Qing class submarine, These submarines will be double hulled with a submerged displacement of 3,600 tons. It will be equipped with the new Stirling-cycle AIP and will be able to carry upto 3 CJ-10K which could carry nuclear warheds, Other features include hull retractable foreplanes and hydrodynamically streamlined sail. The AIP and the propulsion systems will be all electric and not the diesal electric propulsion system making the submarines very quiet. This propulsion system has already been tested on a number of heavier Chinese submarines.