Originally the timber member rising from the aft end of the keel. It formed the centreline structure for the aft end of the vessel from which the rudder was hung. In the early days of steam propulsion the sternpost became part of the stern frame as modifications were made to accept shaft bearings and propeller apertures. With the introduction of multiple propellers, and rudders supported by separate skegs, the term is now seldom used in shipbuilding or naval architecture.
Subjects: Maritime History — Warfare and Defence.