 The PLAN transferred this class to the naval militia for training purposes, and because these boats are kept and maintained on land due to their small size, they are normally in better condition than larger units that are kept in the reserve and mothballed fleets.In addition to naval militia training duties, some of the surviving units have been converted into target drones, and have thus been returned to active service, functioning as minor support auxiliaries.As with the , the drone is controlled by larger converted gunboats such as the , , and classes.