::Sea anchor


Anchor::anchors    Waves::water    Vessel::drogue    Heavy::provide    Vessels::under    Lehmann::title

A simple sea-anchor or drogue. It is meant to slow forward motion of vessel when being driven before the wind.
Drawing of a conical sea anchor, with a tripline (at top). Based on an illustration in The Sailors Handbook by Halsey C. Herreshoff.

A sea anchor (also known as a drift anchor, drift sock, para-anchor or boat brake) is a device used to stabilize a boat in heavy weather. Rather than tethering the boat to the seabed, the sea anchor increases the drag through the water and thus acts as a brake. When attached to the stern of a vessel, a sea anchor can prevent the vessel from turning broadside to the waves and being overwhelmed by them.

Often similar in design to the sea anchor is the usually smaller drogue, which is attached to the stern and intended to slow the boat for better control.

Sea anchor sections
Intro  Design  Use  See also  Notes  References