Yanjiu-class survey ship

History

PRC
Status| Active
General characteristics
Class and type| Yanjiu
Type| Survey vessel (AGS)
Propulsion| Marine Diesel
Sensors and
processing systems| Navigation radar

The Yanjiu class is a class of little known survey vessel (AGS) built in the People's Republic of China (PRC) for the People's Liberation Army Navy (PLAN).[1] The exact domestic Chinese type designation remain unknown, and this class is identified by its NATO reporting name Yanjiu class,[1] or 研究 in Chinese, meaning research. The Yanjiu class in PLAN service is designated by a combination of two Chinese characters followed by a three-digit number. The second Chinese character is Ce (测), meaning Survey in Chinese. 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, the pennant numbers are subject to change due to the change of Chinese naval ships naming convention, or when units are transferred to different fleets. As of mid 2010s, a total of two ships have been identified:[1][2][3][4]

Type  | NATO designation | Pennant No. | Name
(English)  | Name
(Han 中文)  | Commissioned | Displacement  | Fleet  | Status

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Yanjiu-class survey ship (AGS) | Yanjiu class | Dong-Ce 228 | East Survey 228 | 东测 228 | ? | ? t | East Sea Fleet | Active
Dong-Ce 229 | East Survey 229 | 东测 229 | ? | ? t | East Sea Fleet | Active

## References[edit]

1. ^ a b c "PLANS recognition guide 2015". August 7, 2015.
2. ^ "Yanjiu class AGS" (in Simplified Chinese). January 6, 2021.
3. ^ "PLAN Yanjiu class AGS" (in Simplified Chinese). May 30, 2019.
4. ^ "Chinese navy Yanjiu class AGS" (in Simplified Chinese). Retrieved February 19, 2022.

* v
* t
* e

Active ships of the People's Liberation Army Navy

Submarines

| Nuclear
ballistic missile (SSBN)|

* Type 096*
* Type 094 (Jin class)
* Type 092 (Xia class)

|

Nuclear attack (SSN)|

* Type 095*
* Type 093/G (Shang class)
* Type 091 (Han class)

Conventional
ballistic missile (SSB)|

* Type 032 (Qing class)

Conventional
attack (SS/SSK)|

| Air-independent propulsion
equipped (SSI/SSP)|

* Type 039A/AG/B/C or Type 041 (Yuan class)

|

Hunter-killer (SSK)|

* Type 039/039G (Song class)
* Project 636 (Kilo II class)
* Project 877EKM (Kilo I class)
* ES5E/F and Type 035G/035ET/035B (Ming class)

Medium (SS)|

* ES5C/D and Type 035/035A (Ming class)

Unclassified miscellaneous (IXSS)|

* Chinese sailless submarine
* Olympics Class

Principal surface combatants

| Aircraft carriers (CV)|

* Chinese aircraft carrier programme
* Type 004*
* Type 003*
* Type 002 (Kuznetsov Mod. class)
* Type 001 (Kuznetsov class)

|

Destroyers (DDG)|

* Type 055CG (Renhai class)

* Type 052D (Luyang III class)
* Type 052C (Luyang II class)
* Type 052B (Luyang I class)
* Type 052 (Luhu class)

* Type 051C (Luzhou class)
* Type 051B (Luhai class)

* Project 956EM Sovremenny II class
* Project 956 Sovremenny I class

Frigates (FFG)|

* Type 054B*
* Type 054A (Jiangkai II class)
* Type 054 (Jiangkai I or Ma'anshan class)

* Type 053H3 (Jiangwei II class)

* Type 053H1G (Jianghu V class)
* Type 053H1 (Jianghu II class)

Coastal warfare vessels

| Corvettes (FS)|

* Type 056FF (Jiangdao class)

|

Submarine chasers (PCSC)|

* Type 037-IS (Haiqing class)
* Type 037-I (Haijiu class)
* Type 062-I (Haizhui class)
* Type 037 (Hainan class)
* Project 122bis Kronshtadt class

Armed merchantmen (SP)|

* Type 113
* Type 801
* Type 8105
* Type 8101
* Type 8154
* Type 792 naval trawlers

Missile boats (PCM)|

* Type 22 (Houbei class)
* Type 037-II (Houjian class)
* Type 037-IG (Houxin class)
* Type 021 (Houdong class)
* Type 021 (Huangfeng class or Soviet Osa-I class)
* Type 021 (Hola class)
* C 14 (China Cat class)
* Type 024 (Heku/Hegu/Houku/Hougu class)

Torpedo boats (PT)|

* Type 6625/025/026/026II/R704 (Huchuan class)

Gunboats (PG)|

* Type 062-I (Shanghai III class)
* Type 062 (Shanghai II class)
* Type 062 (Shanghai I class)
* Type 206 (Huludao class)

Patrol boats (PB)|

| Seagoing|

* Type 026H

|

Port security boat (PSB)|

* Huangpu class

Reconnaissance patrol combatant (PGR)|

* Type 528
* Type 865

Amphibious warfare vessels

| Landing helicopter dock (LHD) or
Landing helicopter assault (LHA)|

* Type 076*
* Type 075 (Yushen class)

|

Amphibious transport dock (LPD)|

* Type 071 (Yuzhao class)

Dock landing ship (LSD)|

* Type 072III (Yuting I class)
* Type 072A (Yuting II class)

Landing ship helicopter (LSH)|

* Type 073-III (Yudeng class)
* Type 073A (Yunshu class)

Landing ship tank (LST)|

* Type 072 (Yukan class)
* Type 072-II (Yuting I class)

Landing ship medium (LSM)|

* Type 271IIIA (Yulü class)
* Type 073-I (Yudao class)
* Type 073-II (Yudao class)
* Type 073-IIY (Yudao class)
* Type 074A (Yubei class)
* Type 079-I (Yulian class)
* Type 079-II (Yulian class)

Landing craft (LC)|

| Landing craft tank (LCT)|

* Type 068/069 (Yuch'in class)
* Type 067 (Yunnan class)

|

Landing craft utility (LCU)|

* Type 271III
* Type 074 (Yuhai or Wuhu-A class)

Air-cushioned
landing craft (LCAC)|

* Project 1232.2 Zubr class
* Type 726 (Yuyi class)
* Type 724
* Type 722-II (Jinsha II class)
* Type 722-I (Jinsha I class)
* Type 716-II (Dagu B class)

Mine warfare vessels (MCM)

| Minelayers (ML)|

* Type 918 (Wolei class)

|

Auxiliary minelayers (MMA)|

* Type 8154

Minehunters (MH)|

* Type 081 (Wochi class)
* Type 081A
* Type 082 (Wosao class)
* Type 082II (Wozang class)

Minesweepers (MS)|

* Type 010
* Type 05

Minesweeping
drone (MSD)|

* Type 529
* Type 312 (Futi class)

Auxiliary Minesweepers (MSA)|

* Type 801
* Type 8105
* Type 8101
* Type 8154
* Type 792

Auxiliary vessels

| Ammunition
ships (AE/AEM)|

| Ammunition ship (AE)|

* Type 072 (Yantai class)

|

Ammunition ship, Missile/Rocket (AEM)|

* Yuan Wang 21 (operated by SSF)
* Yuan Wang 22 (operated by SSF)

Buoy tenders (AGL)|

* Type 066 Yuch'in class
* Type 744A Yannan class
* Type 911I Yunan/Yunnan class
* Type 944A Yanni class

Cable layers (ARC)|

* Type 911II Yunan/Yunnan class
* Type 991I
* Type 991II Youdian class

Cargo ships (AK)|

| Reefer ships (AF)|

* Dongleng class

|

Cargo ships (AK)|

* Qiongsha class
* Retired landing ships/crafts

Float-on/float-
off ships (AKF)|

* Modified Hansa Sonderberg class Donghai Island
* Zhen Hua 33

General stores
issue ships (AKS)|

* Type 904 Dayun class
* Type 904A Danyao class
* Type 904B Danyao II class

Roll-on/roll-
off ships (AKR)|

* Bo Sea Pearl class
* Chang Da Long
* China Revival
* China Railway Bo Sea No.3

Container ships (AKX)|

* Converted/militarized container ships

Self-propelled
lighters/barges (YF)|

* 500 cubic meter
* Dongbo 22

Crane ship (AB)|

* Beiqi 384 class
* Unidenified class: Nan-Qi 746

Degaussing /
deperming ships (ADG)|

* Type 911 Dazar class
* Type 912/912I/912III/Type 912IIIA Yanbai class
* Type 912IIIAH Yanci class

Dive tenders (YDT)|

* Longma class ARS/YDT
* Type 904I/904II Yanqian class AGE/YDT

Dredgers (AGD)|

* 8-m3 class
* Beijun 204 class
* Dongjun 417 class
* Dongjun 433 class
* Dongjun 434 class
* Nanjun 610 class
* Dredgers of unknown class/type: Bei-Jun 271, 273, 274, 277 & 278

Engineering
ships|

* Engineering ships of unknown class/type: Bei-Gong 275 & 276

Environmental
research ships (AGER)|

* Dulaji class

Fleet Replenishment
ship (AEFS)|

* Type 901 Fuyu class
* Type 903 Fuchi I class
* Type 903A Fuchi II class
* Type 908 Fusu class

Floating pile drivers (YPD)|

* 36-m class floating pile driver
* Donggong 429 class
* Nangong 681 class

General purpose
research ships (AGE)|

* Dubei class AGT/AGE
* Kandao class YFB/AGE
* Kantan class AGTR/AGE
* Type 904I & Type 904II Yanqian class YDT/AGE
* Type 906 Xiang Yang Hong 9 class YTT/AGE

Harbor utility
craft (YFU)|

* Converted from various retired gunboats such as Type 53 and Type 55A

Hospital ships (AH)|

| Hospital ships (AH)|

* Type 919 Anshen class
* Type 920 Anwei class

|

Medical evacuation ships (AHP)|

* Zhuanghe

Ambulance transports (APH)|

* Qiongsha class

Ambulance craftd (YH)|

* Ankang class

Hydrographic
survey ships (AGS)|

* Type 55 Shantou class
* Type 068/069 (Yuch'in class)
* Type 635 A/B/C & Type 635II Yanlai class
* Type 636A Shupang class
* Type 639A Shupang class
* Type 646 Kanyang class
* Type 8101
* Type 8105/Type 8154/Type 792 FT-14 AIT class
* Yanjiu class

Icebreakers (AGB)|

* Type 272

Museum ships|

* PLANS Heroic Gunboat in the Toumenshan Naval Battle
* PLANS Liberation
* Minquan-class gunboat (replica)
* Project 183 P-6-class torpedo boat
* Type 021 missile boat
* Type 024 missile boat
* Type 031 ballistic submarine (SSB)
* Type 033 submarine (SS)
* Type 051 destroyer (DDG)
* Type 053K frigate (FFG)
* Type 091 submarine (SSN)
* Type 6607 destroyer (DDG)

Oceanographic
research ships (AGOR)|

* Type 639A Shupang class
* Type 645
* Zhang Jian

Oceanographic
surveillance ships (AGOS)|

* Ruili No. 10
* Type 927 Dongjian class
* Type 988

Personnel
transport (AP)|

| Barracks ships (APB)|

* Daguan class AXT/APT/APB

|

Dispatch boat (YFB/YFL)|

* Duchuan class
* Dufei class
* Dukou class
* Duludao class
* Dumujiu class
* Dusso class
* Duzhou class
* Nanjiao 90 class

Transport ships (AP)|

* Type 081 Red Flag class
* Darong class APT/AP

Troopships (APT)|

* Daguan class AXT/APB/APT
* Darong class AP/APT
* Qiongsha class

Range support &
target ships (AGT)|

* Dachou class TR/TWR/AGT
* Dubei class AGE/AGT
* Type 811
* Type 917 Damen class TR/TWR/AGT
* Decommissioned ships

Repair ships (AR)|

| Repair dry
docks (ARD)|

* 120t class
* Dongxiu 912
* Hua Chuan No. 1 class

|

Repair ships (AR)|

* Type 648 Dadao class

Rescue and
salvage ships|

| Heavy-lift ship (YHLC)|

* Type 633

|

Rescue ships (ARS)|

* Datuo class ATR/ARS
* Haijiu 101 class
* Longma class YDT/ARS
* Type 917 Dasan class

Salvage ships (ATS)|

* Type 922II Dalang class
* Type 922III Dalang II class
* Type 922IIIA Dalang III class

Spy ships (AGI)|

* Type 814A Dadie class
* Type 815 Dongdiao I class
* Type 815G/Type 815A Dongdiao II class
* Type 8105/Type 8154/Type 792 FT-14 AIT class

Submarine
support ships|

| Submarine
rescue ships (ASR)|

* Type 930 Hudong class
* Type 946 Dazhou class
* Type 946A Dadong class

|

Submarine tenders (AS)|

* Type 925 Dajiang class
* Type 926 Dalao class

Submersibles (X)|

| Deep-submergence
rescue vehicle (DSRV)|

* Type 7103 DSRV
* LR7

|

Deep-submergence
vehicle (DSV)|

* Harmony class
* Jiaolong class
* Rainbowfish class
* Sea Pole class
* Struggler class

Other
Submersibles (X)|

* Osprey-class submersible
* Mobile diving bell
* QSZ-II submersible

Diver propulsion
vehicles (DPV)|

* QX-50
* QY-18
* QY-40
* QJY-001

Tankers|

| Replenishment tanker (AOR)|

* Hua Chuan

|

Transport oiler (AOT)|

* Fubai class
* Fujian class
* Fushi class
* Type 620 Shengli class
* Type 631 Fuchang class
* Type 637 Fuxiao class

Water tanker (AWT)|

* Fujian class
* Fushi class
* Jinyou class
* Nanshui 701 class
* Type 637 Fuxiao class
* Type 645 Guangzhou class

Technological
research
ships|

| Sonar trials ships|

* Kantan class AGE/AGTR

|

Technical research
ships (AGTR)|

* Mirage Hunter

Unclassified Miscellaneous
Submarine (IXSS)|

* Chinese sailless submarine

Torpedo trials craft|

| Torpedo retrievers
(TR/TWR)|

* Dachou class AGT/TR/TWR
* Type 803
* Type 917 Damen class AGT/TR/TWR

|

Torpedo trials ships (YTT)|

* Type 906 Xiang Yang Hong 9 class AGE/YTT
* Type 907A

Tracking ship (AGM)|

* Type 830 ATR/AGM
* Yuanwang class ARIS/AGM

Training ships (AX)|

| Training ship (AX)|

* Daguan APB)/APT/AXT
* Type 0891A Dashi class
* Type 679 Daxing class
* Type 680 Dadu class
* Yanxi class ATLS/AX

|

Training ship, sail (AXS)|

* Type 2630

Onshore stationary
training facilities|

* Type 033 (Romeo class)
* Type 051/051Z (Luda class)
* Type 053H1Q (Jianghu-IV class)
* Type 6607 (Anshan class)

Tugs (AT)|

| Harbor tug (YT)|

* Beituo 617 class
* Beituo 699 class
* Beituo 702 class
* Beituo 715 class

|

Large harbor tug (YTB)|

* Ducha class
* Duda class
* Duhast class
* Dupo class

Rescue Tug (ATR)|

* Bei-Tuo 739 class
* Datuo class ARS/ATR
* Dong-Tuo 835 class
* Haixiu 121 class
* Daozha class
* Type 830 AGM/ATR

Sea-going Tug (ATA)|

* Type 802 Gromovoy class
* Type 837 Hujiu class
* Type 852 Roslavl class

Tugs of unknown class/type|

* Bei-Tuo 153, 651, 704, 728, Dong-Tuo 845, 861, Nan-Tuo 142, 163, 168, 176, 187, 188

UAV mothershps (ATLS)|

* Fighting Shark No.1
* Yanxi class AGM/AVM/ATLS

Unmanned surface
vehicles (USV)|

* CASIC USVs
* Chinese Sea Hunter
* Sky Journey 1
* HUST USVs
* JARI USV
* JUST USV
* Ostar USVs
* PWT USV
* Shanghai University USV
* Type 80 demolition boat
* VVLAI USV
* WSST USVs
* Yunzhou USVs

Unmanned underwater
vehicles (UUV)|

| Autonomous
underwater vehicle (AUV)|

* CR series
* Explorer series
* HSU-001
* Intelligent Water class
* JUST AUVs
* Micro Dragon Series
* Orange Shark series
* Ostar AUVs
* Poseidon series
* Robosea AUVs
* Sea Clever
* Sea Whale series
* Submerged Dragon series
* THLMT AUVs
* Wukong
* WZODA
* XTDT

|

Benthic landers|

* CAS series
* Rainbowfish series

Bottom crawlers|

* Aquadrobotman series
* CSSC series
* Deepinfar series
* JUST series
* Robosea series
* SBSS series
* Sea Crab
* Sea Star
* THLMT unmanned vehicles#Underwater series
* VVLAI series

Hybrid UUVs (Autonomous remotely
-operated vehicles, ARVs)|

* 7B8
* Arctic series
* Hadal
* Hadal 1
* Rainbowfish ARV

Remotely operated
underwater vehicle (ROUV)|

* 8A4
* 8H4
* Aquarobotman ROUV
* Deepinfar ROUVs
* Discovery
* Dragon Emperor
* Dragon Pearl
* Goldfish series
* JH-01 (Jiao-Hai 01)
* JTD-01 Deep Eel I
* JTML-02
* JTMP series
* JTR series
* JUST ROUVs
* Max ROV
* Oceanxer ROUVs
* Ostar ROUVs
* PWT ROUV
* RECON-IV ROUV
* Robosea ROUVs
* SBSS ROUVs
* Sea Dragon series
* Sea Person (Hai-Ren/HR) series
* Sea Pole
* Sea Star 6000
* Sea Submergence series
* SJT series
* ST-6000
* THLMT ROUVs
* VVLAI ROUVs
* Walrus 1500

Underwater gliders|

* Flying Wing
* Petrel series
* Sea Soar series
* Deepinfar Sea Wing series
* THLMT series

Wave gliders|

* CSSC series
* Hydrovo series
* Ostar series
* THLMT Black Pearl

Weapon trials
ships (AVM/AGM)|

* Type 909 Wuhu-B class
* Type 909A Dahua class
* Type 910 Dahua-II class

* = Under construction or procurement, CG= Classified as guided missile cruiser by NATO, FF= Classified as light frigate by PLAN
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