Sailing boat with an inverted U-shaped mast

A mainsail for a sailing boat comprising at least one mast and a mainsail wherein:

• the at least one mast comprises at least one first and one second section projecting upwards with respect to a hull and arranged facing each other in an orthogonal direction to a hull advancement direction, wherein the first and second sections support the mainsail in two mutually specular and alternative operating positions, wherein the sections are connected and spaced out from each other by at least one overturning section located at a top of each section to allow a passage of the mainsail from one specular position to another specular position defining the two mutually specular positions, wherein the sections of the mast define a first sliding guide for the mainsail that extends substantially along the whole extension length of the at least one mast;
• the at least one mainsail is a sail that is deformable so as to adapt to a path of the sliding guide and for a lowering and in operating positions thereof has an extension in a vertical direction;
• the mainsail has a main edge proximal to the mast and slidably fixed for the whole length thereof along a sliding path,
• the mainsail in the operating position is entirely placed aft with respect to the mast with reference to the advancement direction;
• and
• the mast comprises a second sliding guide positioned substantially at the top thereof and placed aft with respect to the at least one overturning section to define a support from below, in the vertical direction, and slidable, to the mainsail during the passage in the overturning section.

A mast for a sailing boat comprising at least one mast and a mainsail, wherein:

• the at least one mast comprises at least one first and one second section projecting upwards with respect to a hull and arranged facing each other in an orthogonal direction to a hull advancement direction, wherein the first and second sections support the mainsail in two mutually specular and alternative operating positions, wherein the sections are connected and spaced out from each other by at least one overturning section located at a top of each section to allow a passage of the mainsail from one specular position to another specular position defining the two mutually specular positions, wherein the sections of the mast define a first sliding guide for the mainsail that extends substantially along the whole extension length of the at least one mast;
• the at least one mainsail is a sail that is deformable so as to adapt to a path of the sliding guide and for a lowering and in operating positions thereof has an extension in a vertical direction;
• the mainsail has a main edge proximal to the mast and slidably fixed for the whole length thereof along a sliding path,
• the mainsail in the operating position is entirely placed aft with respect to the mast with reference to the advancement direction;
• and
• the mast comprises a second sliding guide positioned substantially at the top thereof and placed aft with respect to the at least one overturning section to define a support from below, in the vertical direction, and slidable, to the mainsail during the passage in the overturning section.