Tricing

Tricing is a term used in rigging and sailing to describe a method of adjusting the tension of a spar, typically a boom or gaff, using a system of ropes. The primary purpose of tricing is to control the angle of the spar relative to the mast or other supporting structure.

In sailing, tricing is most commonly associated with the gaff rig, where a tricing line is attached to the peak of the gaff. By hauling on this line, the angle of the gaff can be adjusted, which in turn affects the shape and efficiency of the mainsail. This adjustment allows sailors to fine-tune the sail's trim for different wind conditions, optimizing performance.

The term can also be applied in other rigging contexts where a similar adjustment is needed. For example, in some theatrical rigging setups, tricing might be used to position scenery or lighting elements. The fundamental principle remains the same: using a rope system to control the tension and angle of a suspended spar or object. The specific names and configurations of tricing lines can vary depending on the type of rig and the desired control. Understanding tricing is essential for those involved in sailing, traditional rigging, or stagecraft where precise control of suspended elements is required.