Rig for a nautical means, comprising: - a reference plane intended to coincide with a symmetry plane extending in longitudinal and vertical direction of the hull of the nautical means; - at least one wing as a sail, that differs from a traditional sail in that it has a wing profile for the generation of aerodynamic thrust also provided with thickness that is influential on the same aerodynamic thrust; - at least one rigid support capable of supporting said wing and transmitting a propulsive thrust to the hull of the nautical means given by the aerodynamic thrust generated by the wing when it takes wind; - the wing comprising a first and a second main face (4a, 4b) opposite to each other, - the rigid support being capable of supporting the wing at least in a first operating configuration in which at least a main portion of the first or second face is facing a first side of the reference plane and in a second operating configuration in which said main portion is facing the opposite side of the reference plane; the rigid support comprising a wing sliding path for switching from the first to the second operating position and vice versa; each support supports a single wing only, the support is capable of supporting the wing (or a main portion thereof) alternately from one side or the other of the reference plane switching from one operating configuration to the other so as to allow the wing itself to take wind always on the same side, which then acts as a tack in both configurations, the rigid support comprises at least one mast with at least two opposed portions with respect to the reference plane and at least one connecting portion of the two opposed portions, where said two opposed portions and the connecting portion define said sliding path to generate the overturning of the wing with respect to said reference plane, wherein said wing comprises a plurality of modules, preferably divided along planes perpendicular to said reference plane, and association means for the association, preferably removable, of each module with an adjacent module, each module being free in rotation, at least by a predetermined angle, with respect to an adjacent module. - a reference plane intended to coincide with a symmetry plane extending in longitudinal and vertical direction of the hull of the nautical means; - at least one wing as a sail, that differs from a traditional sail in that it has a wing profile for the generation of aerodynamic thrust also provided with thickness that is influential on the same aerodynamic thrust; - at least one rigid support capable of supporting said wing and transmitting a propulsive thrust to the hull of the nautical means given by the aerodynamic thrust generated by the wing when it takes wind; - the wing comprising a first and a second main face (4a, 4b) opposite to each other, - the rigid support being capable of supporting the wing at least in a first operating configuration in which at least a main portion of the first or second face is facing a first side of the reference plane and in a second operating configuration in which said main portion is facing the opposite side of the reference plane; the rigid support comprising a wing sliding path for switching from the first to the second operating position and vice versa; each support supports a single wing only, the support is capable of supporting the wing (or a main portion thereof) alternately from one side or the other of the reference plane switching from one operating configuration to the other so as to allow the wing itself to take wind always on the same side, which then acts as a tack in both configurations, the rigid support comprises at least one mast with at least two opposed portions with respect to the reference plane and at least one connecting portion of the two opposed portions, where said two opposed portions and the connecting portion define said sliding path to generate the overturning of the wing with respect to said reference plane, wherein said wing comprises a plurality of modules, preferably divided along planes perpendicular to said reference plane, and association means for the association, preferably removable, of each module with an adjacent module, each module being free in rotation, at least by a predetermined angle, with respect to an adjacent module.