Type 927 oceanographic surveillance ship
Class of surveillance ship
From Wikipedia, the free encyclopedia
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] Type 927 has received NATO reporting name Dongjian class,[4][5][6] 东监 in Chinese, meaning East Surveillance, because the West first observed it performing acoustic surveillance missions in East China Sea.
| History | |
|---|---|
 PRC | |
| Status | Active |
| General characteristics | |
| Class & 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 & processing systems | Navigation radar |
| Electronic warfare & decoys | None |
| Armament | Small arms |
| Armour | None |
| Aircraft carried | 1 |
| Aviation facilities | Helipad |
Characteristics
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
The first photos of a Type 927 under construction surfaced in 2017.[7] Two Type 927s were constructed in Huangpu District, Guangzhou, and the third was constructed at the Wuchang Shuangliu shipyard in Wuhan.[1]
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 |