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Composite Design for a Foiling Optimist Dinghy

Department of Industrial and Materials Science, Division of Material and Computational Mechanics, Chalmers University of Technology, 41296 Gothenburg, Sweden
SSPA Sweden AB Research, Box 24001, 40022 Göteborg, Sweden
Author to whom correspondence should be addressed.
Presented at the 12th Conference of the International Sports Engineering Association, Brisbane, Queensland, Australia, 26–29 March 2018.
Proceedings 2018, 2(6), 252;
Published: 12 February 2018
(This article belongs to the Proceedings of ISEA 2018)
PDF [1193 KB, uploaded 23 March 2018]


In April 2017, a foiling Optimist dingy designed entirely by students, was successfully tested under standard sailing conditions in the waters outside Gothenburg. In order to achieve take of wind speeds as low as 6 m/s, a stiff and lightweight design of the dinghy and its foiling components was necessary. There have been few successful attempts to make an Optimist foil in a stable manner, as such there were no standards or recommendations available for the design. Therefore, a simulation driven structural design methodology for hydrofoils, centreboards, centreboard-to-hull connections, and necessary hull reinforcements using sandwich structures was adopted. The proposed design was then manufactured, allowing for a significantly stiffer hull and a 20% decrease in weight over a conventional Optimist. Excluding the rig and sail, the final weight came to 27 kg.
Keywords: carbon fibre reinforced polymer design; Optimist dinghy; foiling carbon fibre reinforced polymer design; Optimist dinghy; foiling
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Oddy, C.; Blomstrand, E.; Johansson, D.; Karlsson, N.; Olofsson, N.; Steen, P.; Fagerström, M.; Asp, L.E.; McVeagh, J.; Brown, M.; Finnsgård, C. Composite Design for a Foiling Optimist Dinghy. Proceedings 2018, 2, 252.

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