Upright Sailing Craft Performance and Optimum Speed to Windward

Abstract

A convenient geometric fnlutinn to the wind Irinnglc rel.alinn\hip\ For a \ailing crafl is de+elr~pcrl whwh is directly related to the armdynamic and hydrodynamic chnrncteriatics of Ihc cralt. Manimitiny rhc \peed made good tu wiiideard is examined, and a relationship between the aerodynarnicr and hgdrodynamic\ nC the craft which bounds !he windward performance and is a necessav conditioir fur ~na~imum speed to windward is developed. A brief discussion of windward perfornunre tradeuffs is induded based vn thiv res~~lt.