Spring Line

In maritime context, a spring line is a mooring line that is used to prevent a vessel from moving forward or aft while docked or anchored. It is attached to the bow or stern of the vessel and led ashore to a fixed object such as a dock or a bollard. The spring line is used to keep the vessel from surging forward or aft due to wind, waves, or current. It is also used to pivot the vessel around a fixed point, such as when turning the vessel in a narrow channel or when maneuvering in a tight space. The spring line is an important tool for safe and efficient vessel handling in port.
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