Layline

Part of speech: noun

Definitions

1. A navigational reference in sailing that delineates the ideal route to utilize the wind's force for efficient travel towards a destination
2. A guidance line used in sailing that indicates the optimal path to harness wind power effectively while reaching a specific location
3. A strategic sailing guideline that marks the best course to maximize wind effectiveness and ensure efficient travel to a target point

Etymology: Built from "lay," a sailing term for bringing a vessel to a particular point, and "line," this term describes a course that reaches a destination without an extra change of direction. To "lay" a mark is to sail straight to it. A sailing boat cannot head directly into the wind, so it zigzags, or tacks, toward an upwind destination. The laylines are the two boundary lines drawn from the mark at the angles the boat can hold while sailing close-hauled. Any course that stays between them reaches the mark. A skipper who sails to the edge of one line knows the next tack will bring the boat to the destination.