The ship's maritime routine patrol boat in Hunan Province sails in the B-level waters of the inland river. It can be used daily as a water safety patrol boat. The ship is designed as a patrol boat sailing on the inland river B-class navigation area. The ship is a single-sole, single-deck steel all-welded structure. It is driven by two marine diesel engines and equipped with high-efficiency propellers, V-shaped round cymbals with short knurls at the crotch, and a keel-shaped ship with a square keel. Wave resistance and maneuverability.