Stern Port. Opening in stern of ship for gun, ventilation, admission: of light, or for loading cargo.
Stern Post. Vertical member at after end of hull. In single-screw J vessels it usually carries rudder and forms part of stern frame. In wooden vessels, is a vertical timber resting on after end of keel.
Stern Sheets. That space, in a boat, abaft after thwart; or between after thwart and backboard.
Sternson. Stern knees.
Stern Tube. Watertight cast-iron tube through which propeller shaft is passed for attachment of propeller.