Type 639 research ship

Last updated
Class overview
BuildersWuchang Shipyard
OperatorsNaval ensign of China.svg  People's Liberation Army Navy
General characteristics
Class and typeKanhai-class
TypeOceanographic research ship (AGOR) and Oceanographic surveillance ship (AGOS)
Tonnage1500 ton
Propulsion Marine Diesel
Electronic warfare
& decoys
None
ArmourNone
Aircraft carriedNone
Aviation facilitiesNone

Type 639 is a type of ocean surveillance ship is a type of oceanographic surveillance ship developed by China for its People's Liberation Army Navy (PLAN) to replace earlier Type 595. A single unit of Type 639 with pennant number Bei-diao 992 is currently in service as an oceanographic research ship and five more modified version serving as hydrographic survey ships are designated as Type 639A. Type 639 has received NATO reporting name Kanhai class, [1] [2] [3] [4] 勘海 in Chinese, meaning Surveying Sea.

Type 639 is a SWATH design of 1500 tons of displacement with three anchors. In addition to the SWATH hull form, another unique feature of Type 639 oceanographic research ship is the adaptation of integrated electric propulsion system. Developed by China Shipbuilding Industry Corporation (CSIC), the subsystems are developed by various subsidiaries and divisions of CSIC. The ship is jointly developed by 701st (中国船舶重工集团公司第七零一研究所) and The 702nd Institute of CSIC (中国船舶重工集团公司第七零二研究所). The ship was built by Wuchang Shipbuilding Industry Co. Ltd (武昌船舶重工有限责任公司) of CASIC. The integrated electric propulsion system was the result of work of several CASIC subsidiaries and divisions, including Wuhan Machinery Plant Co. Ltd (武汉船用机械有限责任公司), Henan Diesel Engine Industry Co. Ltd (河南柴油机重工有限责任公司), Shanxi Fenxi Heavy Industry Co. Ltd. (山西汾西重工有限责任公司), Chongqing Huayu Electrical Instrumentation Plant (重庆华渝电气仪表总厂) Archived 2016-03-04 at the Wayback Machine ,Beijing Great Wall Electronic Equipment Co. Ltd. (北京长城电子装备有限责任公司) Archived 2014-05-25 at the Wayback Machine , and the final integration of various subsystems of the integrated electric propulsion system is The 712th Institute of CSIC (中国船舶重工集团公司第七一二研究所). To meet the strict requirement, nearly a dozen new technologies were incorporated, most of them were for the first time in China. The most obvious visual feature of Type 639 oceanographic surveillance ship is that there is a well in the center to lower acoustic or other scientific equipment. [5]

Type 639/639A series ships in PLAN service are designated by a combination of two Chinese characters followed by three-digit number. The second Chinese character is Shui (调), meaning research, or Ce (测), meaning survey, because these ships are classified either as oceanographic or hydrographic research. The first Chinese character denotes which fleet the ship is service with, with East (Dōng, 东) for East Sea Fleet, North (Běi, 北) for North Sea Fleet, and South (Nán, 南) for South Sea Fleet. However, the pennant numbers are subject to change due to changes of Chinese naval ships naming convention, or when units are transferred to different fleets.

TypePennant #BuilderLaunchedCommissionedStatusFleet
639Bei-Diao 992Wuchang ShipyardAfter 20002009Active North Sea Fleet
639ABei-Ce 901Wuchang ShipyardAfter 20002015Active North Sea Fleet
639ABei-Ce 902Wuchang ShipyardAfter 2000After 2010Active North Sea Fleet
639ADong-Ce 232Wuchang ShipyardAfter 20002013Active East Sea Fleet
639ADong-Ce 233Wuchang ShipyardAfter 20002015Active East Sea Fleet
639ANan-Ce 429Wuchang ShipyardAfter 20002013Active South Sea Fleet
639ANan-Ce 430Wuchang ShipyardAfter 20002013Active South Sea Fleet

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References

  1. "PLANS recognition guide 2018". July 16, 2018.
  2. "PLANS recognition guide 2019". February 19, 2020.
  3. "PLANS recognition guide 2020". February 19, 2020.
  4. "PLANS recognition guide 2015". August 7, 2015.
  5. "Type 639". Archived from the original on 2014-08-12. Retrieved 2014-05-28.