ROCKBOX BLUE Functions:
Starting line distance
•Indicates the perpendicular distance from the RockBox to an infinite starting line that goes through the two marks
•Dedicated buttons on the case make it easy to press the right button when in position to set the marks
•Easily reset one or both marks at any time
•Plus and minus side of line indicator
•The fast update rate of the GPS inside the RockBox really shines here!
•Graphically indicates the difference between a base heading and your current heading
•Allows easy identification of wind shifts while sailing upwind
•Remembering a series of headings to spot wind shifts is not necessary anymore!
•Indicates your current course versus a base course
•Graphically indicates a history of speed or VMG
•Make it easy to see changes in speed or VMG over time, without the need to remember old values
•Spot drop offs in speed to know when a sail or trim change is needed
•After a trim change is made, you can let the boat settle in for a while and see the result