Design of a 30 ft high-performance racing yacht

Abstract

This Master’s Thesis presents the conceptual design of a small high-performance racing yacht, focusing on maximizing performance and compliance with regulations. The design methodology integrates hydrodynamic and aerodynamic analysis, structural optimization, and material selection to balance speed, stability, and durability. A market study identifies correlations between the main dimensions of similar yachts, later analysing the impact of changing the different dimensions on the resistance and stability of the vessel. A chine is introduced, and its effect on stability is also analysed. The sail set and appendages are optimized using a VPP, with comparisons made to similar yachts to refine the design. From this point forward, the objective of the project is to obtain a more accurate VPP (based on the weight estimation and position of the centre of gravity) and understand the reason behind the discrepancies with similar boats. The study of the propulsion system, including resistance analysis and propeller dimensions, leads to engine selection. The design and placement of onboard systems ensure peak performance and crew well-being while complying with the requirements. A hotel load of the consumers on board guides battery selection. Lastly, all these systems and equipment are organised so the general arrangement is designed. The structure is scantled per ISO-12215, including keel and mast supports. Weight estimations in several conditions are used to refine the VPP, and the results are again compared with similar vessels. Finally, the rating and stability of the yacht are analysed to understand performance discrepancies with these designs.