Preprint Article Version 1 This version is not peer-reviewed

A Passively Morphing Trailing Edge Concept for Sailing Hydrofoil

Version 1 : Received: 10 June 2017 / Approved: 16 June 2017 / Online: 16 June 2017 (12:01:56 CEST)

How to cite: Hueber, F.; Caponnetto, G.; Poloni, C. A Passively Morphing Trailing Edge Concept for Sailing Hydrofoil. Preprints 2017, 2017060080 (doi: 10.20944/preprints201706.0080.v1). Hueber, F.; Caponnetto, G.; Poloni, C. A Passively Morphing Trailing Edge Concept for Sailing Hydrofoil. Preprints 2017, 2017060080 (doi: 10.20944/preprints201706.0080.v1).

Abstract

Sailing sports are experiencing a period of radical innovations. Traditional displacing monohulls have always been the reference for yachting in the past, but the continuous quest for performances has generated many variations and many convergences with surprising results. On the aerodynamic side conventional soft sails have been sometime replaced by rigid wings, but the biggest innovation has been the use of traction kites as a propulsion device. On the hydrodynamic side we have seen the rapid growth of hydrofoils, an old concept that is having a rebirth. Probably the most remarkable expression of innovation and integration between concepts having different roots is the hydrofoil kite-board, point of encounter of the traditional wave surfing, the traction kite innovation and the hydrofoil technology. Hydrofoil kite-board can reach speeds up to 3 times the wind speed, are at least one order of magnitude cheaper than any boat with comparable performances, easy to manage and races are spectacular. Hydrofoil are object of investigation trying to further improve performances as well as to increase the stability and the “sailability". In the following we will present a concept that extends the range of efficiency of the foil through a completely passive morphing of the wing.

Subject Areas

sailing; hydrofoil; kite-board

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