This directed cut, which is particularized by its radial point of tack, is controlled perfectly on our last programs C.A.O/F.A.O. 4 zones of orientation of the panels adapt to the diagram of the efforts and the constraints which the sails of front undergo. She is more particularly recommended for the boats of less than 45 '.

This cut offers a radial point of tack to avoid the deformations authorizing a better control of front volume in the low parts. The Z4T brings a very great stability of form thanks to its horizontal splittings. This design allows, the use of roving grammages decreasing standard Sandwich Polyester cd. or Spectra.