Jean-Baptiste R. G. Souppez
Senior Lecturer in Yacht Design and Composite Engineering
British Conference of Undergraduate Research
COMBINING MODERN HYDROFOILS AND
CLASSIC WOODEN YACHTS
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Alvaro Guell
BEng (Hons) Yacht and Powercraft Design
British Conference of Undergraduate Research 2018 2
CONTENTS
▪ Background
▪ Stability
▪ Dynamic Stability System
▪ Towing Tank Testing
▪ Performance
▪ Conclusion
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THE BOAT
▪ Traditional design inspired by Spirit Yachts
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MAKE IT MODERN: HYDROFOILS
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DYNAMIC STABILITY SYSTEM (DSS)
HEELING MOMENTS (SAILS)
RIGHTING MOMENTS (FOIL)
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DYNAMIC STABILITY SYSTEM (DSS)
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TANK TESTING
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TANK TESTING
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PERFORMANCE PREDICTION UPWIND (LEFT) AND DOWNWIND (RIGHT)
0
1
2
3
4
5
6
Speed (
knots
)
Spirit 50 Spirit 50 with foil
▪ Result: Faster boat with DSS!
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CONCLUSIONS
▪ Towing tank testing and velocity prediction undertaken
▪ Demonstrated better performance with DSS foils
▪ The designed also showed the feasibility of the installation on classic wooden yachts
