The objectives for this thesis were to design a modern stern for the series 60 (0.60 CB) Model, to compare the resistance characteristics of the original and modern sterns, and to analyze the wake patterns of the models to determine their effect on propeller induced vibrations. The modern stern was designed to closely represent sterns built today. Analysis of resistance and wake survey results showed that the modern stern made a significant improvement in resistance, hull efficiency, shaft bearing vibrations, hydrodynamic vibrations, and cavitation performance.