Since 2000 foils have been fitted to some racing sailing boats with significant results. Several multihulls as well as high performance dinghies use foils and take benefit from hydrodynamic lift. 2013 America’s Cup was sailed almost entirely over the water by foiled catamarans. Recently foil application has been successfully proposed on mono hull ocean racers with low ballast ratio as IMOCA60 s. The foils used on both racing mono and multi-hulls allow benefits on both motion resistance and transversal righting moment through the exploitation of hydrodynamic lift; the vertical component of hydrodynamic force produced by leeward foil(s) takes place of hydrostatic buoyancy, but differently from Archimede’s static force it increases with square speed. Larger righting moment and resistance reduction due to foils result in higher speed. The paper presents a general review of different foil applications on sailing craft and reports detailed characteristics of the most recent trends.
Contributes to sailing yacht performance by foil hydrodynamic lift / Bertorello, C.; Begovic, E.. - 1:(2016), pp. 339-346. (Intervento presentato al convegno 17th International Congress of the International Maritime Association of the Mediterranean, IMAM 2017 tenutosi a Portugal nel 9-11 October 2017).
Contributes to sailing yacht performance by foil hydrodynamic lift
Bertorello, C.
Writing – Original Draft Preparation
;Begovic, E.Writing – Review & Editing
2016
Abstract
Since 2000 foils have been fitted to some racing sailing boats with significant results. Several multihulls as well as high performance dinghies use foils and take benefit from hydrodynamic lift. 2013 America’s Cup was sailed almost entirely over the water by foiled catamarans. Recently foil application has been successfully proposed on mono hull ocean racers with low ballast ratio as IMOCA60 s. The foils used on both racing mono and multi-hulls allow benefits on both motion resistance and transversal righting moment through the exploitation of hydrodynamic lift; the vertical component of hydrodynamic force produced by leeward foil(s) takes place of hydrostatic buoyancy, but differently from Archimede’s static force it increases with square speed. Larger righting moment and resistance reduction due to foils result in higher speed. The paper presents a general review of different foil applications on sailing craft and reports detailed characteristics of the most recent trends.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
