New Chinese Surveillance Ships to Detect Submarines

The type 927 (number 782) closely resembles U.S. ocean surveillance ships (Picture source: Chinese internet) says in its report “Three types of 927 surveillance ships entered China navy in 2018 and 2019” yesterday that according to photos circulated on Chinese internet over the past week, a new Chinese ocean surveillance ship has been completed and commissioned in southern China.

It says other two such surveillance ships are being built in Chinese shipyard. They are allo of SWATH designs extemely quiet especially when outfitted with electric motors. They are“especially useful for hydrographic surveying and research utilizing sonar and other sensitive acoustic equipment, and for locating submarines.”

They resemble U.S. Navy Ocean Surveillance Ships and may be equipped with advanced sonar arrays to detect and track submarines at great ranges. “Some can augment their passive listening arrays with low-frequency active arrays that send sound waves into the water to bounce off submerged submarine hulls to reveal their location,” says the report.

Comment by Chan Kai Yee on’s report, full text of which can be viewed at