Type 636 hydrographic survey ship


The Type 636 and its successor Type 636A hydrographic survey ships are Chinese survey vessels currently in service with the People's Liberation Army Navy and Chinese Coast Guard.

Type 636

Type 636 hydrographic survey ship and its successor Type 636A are both designed by of the 708th Institute of China State Shipbuilding Corporation, which is also more commonly known as nowadays. Special attention was given to vibration reduction measures and the internal noise generated by the ship itself was much lower than other ships of similar size. The ship was built by Wuhu Shipyard and entered service in August 1998. On November 16, 2011, it was transferred to Chinese Coast Guard. Specification:
Type 636A is the successor of earlier Type 636. Construction of the first ship of Type 636A began at Wuhu Shipyard in May 2003 and there are more than two dozen surveying systems installed on board. Originally named as Ocean 20, but subsequently changed to Zhu Kezhen. The second ship of Type 636A was originally named as Ocean 22, but subsequently changed to Qian Sanqiang. Specification:*
Type 636 and 636A ships are named as contemporary Chinese scientists.
TypePennant numberNameBuilderLaid downCommissionedStatus
636871Li SiguangWuhu Shipyard―Oct 1998Decommissioned
636A872Zhu KezhenWuhu ShipyardMay 2003―Active
636A875Qian SanqiangWuhu Shipyard―1 May 2008Active
636A873Qian XuesenWuhu Shipyard―26 December 2015Active
636A874Deng Jiaxian――2 February 2016Active
636A876Qian Weichang――25 July 2016Active