Systematic Series of the IACC yacht "Il Moro di Venezia": Heel and Yaw analysis

"Il Moro di Venezia" was the challenger for the XXVIII edi- tion of the America's Cup in San Diego, 1992, and it has be- P come the first non-English European challenger in the his- tory of the cup. Due to the change in class rules at that time, a great effort was spent in the research of the more favorable design in terms of displacement and sail area: to this aim, a large experimental campaign has been produced. The end of the confidentiality agreement for the experimental data produced in that time allows now a deep analysis into the section CP prismatic coefficient CR residuary resistance coefficient: CR = RR/(0.5?v2SC ) CT total resistance coefficient: CT =RT/(0.5?v2SC) CT? total resistance volumetric coefficient: C =R /(0.5?v2?2/3) different designs still available at INSEAN. The large size T?TC of the models (with scale ratio of 1:3) makes this data set nearly unique in the filed. A first approach to this analysis has been produced in [1]: here the results for the unappended tests have been pre- sented. This first data analysis has been revised in [3], and the fully appended configurations, still in upright condition, have been included. Two different strategies for the develop- ment of a correlation for the data have been also presented. In this paper, the heeled and yawed experiments will be analyzed. A revision of the standard methodologies for the consideration of the heel and yaw angles will be performed. Than, a statistical analysis of the influencing quantities will be applied, identifying a suitable set of design parameters, and their effect on the performances of a sailing yacht.