Wishbone rig
A wishbone rig, sometimes also known as fishbone ketch, is a type of rigging on sailboats. This rigging is most popular on heavy two-masted vessels. The rig gets its name from the wishbone, a V or Y shaped bone similar to the rig's gaff. A ketch rigged in this fashion is called wishbone ketch. Examples of wishbone-rigged boats include the "Zawisza Czarny" and the "Norda". Definition. A wishbone ketch rigged vessel is a vessel that is rigged as a ketch where a permanent splitting gaff is mounted between two masts. Contrary to the gaff rig  (where the gaff is hoisted together with the sail) the gaff stays in the mast. The gaff is typically fixed on the first mast (the one closer to the front) and fixed via a line to the aftmost mast. These lines allow the sail to be trimmed to suit the wind. Advantages and disadvantages. Advantages: Disadvantages: