Rudder: The rudder is a movable vertical plate located at the rear (stern) of a ship beneath its hull. By directing water flow, it controls the vessel's steering by changing its course.
Propulsion: Propulsion refers to the mechanism or system that drives a ship forward. It can include sails, oars, or engine-powered mechanisms like steam engines or propellers.
Draft: The draft of a ship is the vertical distance between the waterline and the deepest part of its hull. It affects maneuverability as ships with shallow drafts can navigate in shallower waters.