Abstract: A rig for a sail-carrying boat comprises a mast having an axially-extending luff track, a sail having a bead-shaped luff formed by a longitudinally folded flat ribbon sewn to the front edge of the sail cloth, the bead-shaped luff being inserted in the luff track, and a boom secured to the mast by a pivotable joint, the boom including a tubular body and a rod rotatably mounted in the tubular body and to which the bottom edge of the sail is secured, such that rotation of the rod during reefing causes the sail to be wrapped therearound.