This solution has two operating modes: one mode for use on the open water and another mode to use for short periods of time in close quarters. In the open water operating mode, DPS will use only the engines to keep the boat in its target position. It is ideal for short-handed crews, allowing the captain to step away from the helm to tend to mooring lines and fenders before entering a marina. In the close quarters operating mode, DPS uses both the engines and bow and stern thrusters in concert to keep the vessel in its target position.