parrels

A parrel is a device used in sailing to keep a yard from swinging around uncontrollably when the sails are not drawing. It typically consists of a rope or a strap that encircles the mast and the yard, often with wooden beads or blocks to reduce friction. This allows the yard to pivot freely on the mast for sail trim while preventing it from rotating unnecessarily, especially when sailing off the wind or in changing conditions.

The basic function of a parrel is to create a controlled pivot point. Without parrels, the yard would be free to swing wildly, potentially damaging the mast, sails, or rigging, and making it difficult to steer the vessel. The parrel acts as a flexible but restraining connection, allowing the yard to be adjusted to the desired angle relative to the wind while keeping it aligned with the mast.

Different types of parrels exist, varying in complexity and materials. Simpler designs might involve just a loop of rope, while more elaborate versions incorporate multiple components for smoother operation and greater durability. The specific design often depends on the size and type of sailing vessel, as well as the intended use and the prevailing weather conditions. Parrels are a fundamental piece of rigging on many traditional sailing ships.