Anchor

An anchor is an essential device used to restrict the movement of a vessel on the water. In modern yachting, anchors fall into two main functional categories: seabed anchors and sea anchors (drift anchors). Traditional seabed anchors hold a boat by digging into the bottom substrate, aided by the weight and scope of the anchor chain. For safe riding at anchor, a scope ratio between 3:1 (in calm conditions with full chain) and 5:1 or 7:1 (in strong winds or with rope rode) relative to water depth is standard practice.

As described in Wikipedia, a sea anchor operates through hydrodynamic drag rather than seabed contact. Deployed from the bow, this parachute-like fabric device stabilizes the vessel during heavy weather in deep water, keeping the bow turned into the wind and waves to prevent broadside capping or overwhelm. It differs fundamentally from a stern drogue, which is streamed from the aft to slow progress in overtaking seas.

Choosing the correct equipment and respecting safe distances in crowded anchorages are core elements of proper seamanship. Following proper yacht etiquette ensures fair swing room for all vessels in a bay. When choosing between staying in an anchorage or seeking shelter, skippers should understand how options differ, particularly when evaluating a yacht marina versus open anchoring.