An X372 by X-Yachts, later replaced by the X362 Sport, and similarly a highly effective IRC racing competitive yacht. The Niels Jeppesen X Yacht range have always been competitive under the IRC rating rule, the X332 in the UK becoming so prevalent in the previous decade a one design fleet often numbered over 30 in key regattas such as the HRSC Winter Series, the WSC Spring Series and Cowes weeks. The cored GRP construction adds rigidity without excessive weight, although debonding is a key defect for a marine surveyor to check for, by hammer sounding the hull and deck carefully.