Winch

A mechanical device used on boats to haul in or let out heavy loads, typically consisting of a drum or spool around which a rope, cable, or chain is wound.

A winch is an essential piece of equipment on many vessels, particularly sailboats and larger motorboats, where it is used to manage the tension and movement of lines, such as sheets, halyards, or anchor chains. The basic structure of a winch includes a rotating drum or spool, around which a rope, cable, or chain is wound. By turning the drum, either manually or with the aid of a motor, the winch can pull in or release the line, allowing for precise control over sails, anchors, or other heavy objects. 

On sailing yachts, winches are commonly used to adjust the tension of the sheets. This enables sailors to trim the sails effectively and harness the wind’s power. Winches can be operated manually, using a handle inserted into the top of the winch, or they can be powered by electric or hydraulic systems, especially on larger vessels where the loads are too heavy to manage by hand.

The winch design often includes a ratchet mechanism, which prevents the drum from unwinding unintentionally and ensures that the line remains securely in place once tension is applied. Winches come in various sizes and strengths, depending on the specific requirements of the vessel and the tasks they are intended to perform.