Type 917 torpedo retriever/target ship

Type 917 torpedo retriever (TR/TWR) / range support vessel / target ship (AGT ) is a type of little known auxiliary ship built in the People's Republic of China (PRC) for the People's Liberation Army Navy (PLAN). As a successor to earlier Type 803 torpedo retriever, Type 917 TR/TWR/AGT has received NATO reporting name Damen class, or 大门 in Chinese, meaning "big gate". As with its predecessors, once these have retired from their original torpedo-retrieving duties, they are converted into range support vessels/target ships, until finally sunk as targets. Specification: Length: (m): 63.68 Beam (m): 9 Draft (m): 2.8 Standard displacement (t): 720 Full displacement (t): 742.5 Speed (kt): 13 Propulsion: 8300CZ marine diesels @ 1100 hp x 2 Type 917 AGT/TWR/TR in PLAN service is designated by a combination of two Chinese characters followed by a three-digit number.