Sailing features ContentsChart app — Racing modeLaylinesIn sailing; Laylines are COG vector lines showing the course the boat will take when sailing at the optimum angle to the wind, on either tack. The laylines will show whether the boat will reach the intended destination on the current tack, or if another tack is required to meet the destination. Sailing to the target wind angle maximizes your Velocity Made Good (VMG) resulting in your boat traveling along the layline.Wind shift barWhen sailing, wind direction is very important, but does not remain constant in either strength or direction. To use the wind to your best advantage, when the wind direction shifts, the vessel heading should be adjusted accordingly, in order to follow a close-hauled course. LightHouse 4 automatically calculates the mean wind direction, allowing the Wind shift bar to provide an indication of changes in True Wind Direction (TWD) compared with the average TWD recorded over a specified time period.Sail plan recommendationsSail plan recommendations published by your vessel’s manufacturer can be displayed onscreen to help select the correct sail configuration for the prevailing wind conditions. The recommendations are updated in real time as Apparent Wind Speed (AWS) and Apparent Wind Angle (AWA) change.Sailing data pageSailing data and dials are available for display alongside laylines to help indicate which direction to turn in order to maximize your VMG (Velocity Made Good) to windward.Steer to wind modesSteer to wind modes use your autopilot’s Wind vane mode to steer your vessel to the wind. You can steer either to the Apparent Wind Angle (AWA), True Wind Angle (TWA) or to a target wind angle from a polar table.Race start line (SmartStart) and Race timerThe Race start line and Race timer features can help you achieve a better racing start. The features assist you in approaching the race start line at the optimum speed, angle and time.Route rounding directionEach waypoint within a route can have a Rounding direction applied which indicates whether you should leave the waypoint to port or to starboard.Previous topic: Chart app — Anchor modeNext topic: Fishfinder app