The fixing point of the maneuver lines is usually placed between two stands (from the 3rd to the 5th "stand") in a battery of mechanisms called "piano". In addition to the ropes that act as stays,.Video: Patí Català: Que, Qui, Com. there is a halyard to hoist the sail along the mast, and another rope whose actuation shapes an area of the foot of the sail known as "dovetail ", when pulled or released lightly, makes an appreciable variation to the flatness of the sail surface.Video: Patí Català Patí a Vela.
