(nautical) The curved wooden top of the stern of a sailing man-of-war or East Indiaman, usually carved or decorated. / (nautical) The rail around the stern of a ship.

plural of taffrail

(nautical) A mechanical device dragged from the stern of the vessel that indicates the vessel's speed through the water; usually consists of a propeller, a reading unit and a stiff line connecting them.

plural of taffrail log