Stern Spring
A mooring line that runs diagonally from the stern of a vessel to a point further forward on a dock or another vessel to help control fore-and-aft movement.
A stern spring is an essential mooring line used to prevent a vessel from surging forward or aft while docked. It is secured at the stern of the vessel and runs diagonally forward to a fixed point on the dock, often a bollard or cleat. This line works in conjunction with other mooring lines, such as the bow spring, breast lines, and head and stern lines, to keep the vessel stable and properly positioned.
The stern spring is particularly useful when docking in tidal areas or locations with strong currents, as it helps counteract the forces acting on the vessel. It also plays a crucial role when manoeuvring in tight spaces, allowing for controlled movement when departing or berthing. By adjusting the tension on the stern spring, a vessel can be moved forward or aft without using propulsion, which is especially useful in confined harbours or when docking alongside other vessels.
Proper use of a stern spring enhances the safety and security of a moored vessel, reducing strain on other mooring lines and preventing excessive movement that could cause damage to the vessel or dock.
