True Wind The direction the wind is coming from when the boat is at rest.
Vaka A Polynesian term for the primary, or center hull, of a trimaran.
Wave-Piercing
Hull A hull that drives through chop and waves, allowing the sail to create more consistent
power and permitting a more gentle motion. WindRider uses wave-piercing hulls.
Wind Rose A diagram describing points of sail in terms of their relationship to points on a
compass.
Windward The side of the boat onto which the wind blows.