Polyester fabric for a boat traction structure

An aerial traction structure for a ship, comprising at least one layer of a coated fabric made of a bare fabric having two surfaces and formed from multifilament continuous warp yarns and weft yarns and coated on one or both of its two surfaces with a polyurethane (PU) as a coating material, wherein the bare fabric has a coverage rate TC of between 1.8 and 4, the TC being calculated according to the formula TC=(number of filaments/cm×diameter of 1 filament in cm)warp+(number of filaments/cm×diameter of 1 filament in cm)weft, the warp yarns and weft yarns are made of poly(ethylene terephthalate) (PET), the bare fabric comprises or is made up of warp yarns and weft yarns having a dtex of between 33 and 470 dtex and has a density of between 20 and 50 yarns/cm, in terms of warp and weft density, the polyurethane is a crosslinked PU that is polyether-, polyester-, or polycarbonate based, and the crosslinked PU is obtained by crosslinking (1) of a single-component polyurethane having a modulus at 100% elongation less than or equal to 5 MPa, according to the standard DIN 53504, used in implementation in organic solvent phase;

• (2) by a crosslinking agent, based on a proportion of dry crosslinking agent relative to the dry elastomer of between 5% and 30% by weight, and the coated fabric has a weight, including coating, ranging from 43 to 250 g/m2.