Stern Spring
A mooring line led from the vessel’s stern area forward to a shore or berth fitting.
It opposes the vessel’s movement astern and, together with head lines, stern lines and a forward spring, controls fore-and-aft position and yaw alongside.
Lead, length, elasticity and load sharing affect performance. Spring lines can carry high loads and create snap-back or crushing hazards, so they must be tended from safe positions and kept clear of propellers.
