Type_635_hydrographic_survey_ship
Type 635 hydrographic survey ship
Chinese class of naval diving support vessel
Type 635 hydrographic survey ship is a series of hydrographic survey ships developed by China for its People's Liberation Army Navy (PLAN). More successful than Type 625 of the same era, Type 635 still remains active in PLAN after half a century of service, even after its successor Type 636 has entered service. Type 635 series in PLAN service are designated by a combination of two Chinese characters followed by three-digit number. The second Chinese character is Ce (测), meaning survey in Chinese, because these ships are classified as survey ship. The first Chinese character denotes which fleet the ship is service with, with East (Dong, 东) for East Sea Fleet, North (Bei, 北) for North Sea Fleet, and South (Nan, 南) for South Sea Fleet. However, pennant numbers may have changed due to the change of Chinese naval ships naming convention.