This study presents an integrated analysis of the seakeeping data collected during full-scale trials of a medium-size planing pleasure-boat in mild weather conditions. The present work is part of a more general project whose aim is to investigate the correlation between the sea state and the performance of a planing hull in terms of seakindliness, safety and powering. Full scale heave and pitch transfer functions, derived from the proposed general integrated analysis, are compared to results obtained from model scale tests in regular head waves. A focal point in the consistency of the results is found in the influence of the quality of the reconstructed directional wave spectrum derived from a standard directional wave buoy, in particular for the mild weather conditions here assumed as target for standard end-users of the boat.
