| History | |
|---|---|
 PRC | |
| Status | Active |
| General characteristics | |
| Class and type | Dongjian class |
| Type | Oceanographic surveillance ships (AGOS) |
| Displacement | 5,000 long tons (5,100 t) |
| Length | 90 m (295 ft 3 in) |
| Beam | 30 m (98 ft 5 in) |
| Propulsion | Marine Diesel |
| Sensors and processing systems | Navigation radar |
| Electronic warfare & decoys | None |
| Armament | Small arms |
| Armour | None |
| Aircraft carried | 1 |
| Aviation facilities | Helipad |
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, 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. The first Type 927 ship was launched around June 2017 in Guangzhou. Type 927 has received NATO reporting name Dongjian class, 东监 in Chinese, meaning East Surveillance, because the West first observed it performing acoustic surveillance missions in East China Sea.
Characteristics
Type 927 vessels are twin-hulled, with a displacement of approximately 5,000 tonnes. The ships are 90 meters long and have a beam of 30 meters.
Construction
The first photos of a Type 927 under construction surfaced in 2017. Two Type 927s were constructed in Huangpu District, Guangzhou, and the third was constructed at the Wuchang Shuangliu shipyard in Wuhan.
Ships
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
- ^ Tate, Andrew (January 29, 2019). "Acoustic surveillance ship likely to have entered service with PLAN". Jane's Information Group.
- "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.
- ^ Tate, Andrew (March 21, 2018). "China launches another acoustic surveillance ship". Jane's Information Group.
- Joe, Rick (October 16, 2018). "Chinese Anti-Submarine Warfare: Aviation Platforms, Strategy, and Doctrine". The Diplomat.
- "PLANS recognition guide 2018". July 16, 2018.
- "PLANS recognition guide 2019". February 19, 2020.
- "PLANS recognition guide 2020". February 19, 2020.
- Stashwick, Steven. "Photos Reveal Possible New Chinese Sub-Tracking Surveillance Ship". thediplomat.com. The Diplomat. Retrieved 9 September 2019.
