Type 927 oceanographic surveillance ship

Type 927 acoustic surveillance ship is a type of vessel used by the People’s Liberation Army Navy. There are three known Type 927 ships,[1] plus one predecessor Ruili No.10, which is slightly larger than Type 927 ships, and it was used to test onboard systems such as sonars for the three Type 927 ships.[2] The first Type 927 ship was launched around June 2017 in Guangzhou.[3][4] Type 927 has received NATO reporting name Dongjian class,[5][6][7] 东监 in Chinese, meaning East Surveillance, because the West first observed it performing acoustic surveillance missions in East China Sea.

History
PRC
StatusActive
General characteristics
Class and typeDongjian class
TypeOceanographic surveillance ships (AGOS)
Displacement5,000 long tons (5,100 t)
Length90 m (295 ft 3 in)
Beam30 m (98 ft 5 in)
PropulsionMarine Diesel
Sensors and
processing systems
Navigation radar
Electronic warfare
& decoys
None
ArmamentSmall arms
ArmourNone
Aircraft carried1
Aviation facilitiesHelipad

Characteristics

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Type 927 vessels are twin-hulled, with a displacement of approximately 5,000 tonnes.[1] The ships are 90 meters long and have a beam of 30 meters.[3]

Construction

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The first photos of a Type 927 under construction surfaced in 2017.[8] Two Type 927s were constructed in Huangpu District, Guangzhou, and the third was constructed at the Wuchang Shuangliu shipyard in Wuhan.[1]

Ships

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As of end of 2021,there are a total of four ships, including the predecessor unit:

Type NATO designation Pennant No. Name
(English)
Name
(Han 中文)
Commissioned Displacement Fleet Status
Ruili No. 10 oceanographic surveillance ship ? Rui-Li 10 Rui-Li 10 瑞利十号 2016 5300 t All fleets Active
Type 927 oceanographic surveillance ship (AGOS) ? 780 Beta Ursae Majoris 天璇星 2018 5000 t South Sea Fleet Active
781 Gamma Ursae Majoris 天玑星 2019 5000 t South Sea Fleet Active
782 Eta Ursae Majoris 瑶光星 2019 5000 t South Sea Fleet Active

References

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  1. ^ a b c Tate, Andrew (January 29, 2019). "Acoustic surveillance ship likely to have entered service with PLAN". Jane's Information Group.
  2. ^ "简氏称中国海军第二艘927型海洋水声监视船下水 弥补我国海军反潜短板" (in Simplified Chinese). 观察者. Archived from the original on 2019-04-25. Retrieved 2019-04-25.
  3. ^ a b Tate, Andrew (March 21, 2018). "China launches another acoustic surveillance ship". Jane's Information Group.
  4. ^ Joe, Rick (October 16, 2018). "Chinese Anti-Submarine Warfare: Aviation Platforms, Strategy, and Doctrine". The Diplomat.
  5. ^ "PLANS recognition guide 2018". July 16, 2018.
  6. ^ "PLANS recognition guide 2019". February 19, 2020.
  7. ^ "PLANS recognition guide 2020". February 19, 2020.
  8. ^ Stashwick, Steven. "Photos Reveal Possible New Chinese Sub-Tracking Surveillance Ship". thediplomat.com. The Diplomat. Retrieved 9 September 2019.