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Hercules 2000 User Manual Part 2 - Operating Information 2.9.49 VMG to Waypoint Menu heading: Function text: Update rate: Units: WAYPOINT VMG WPT Provided by the position fixer Knots This is another function which is directly calculated by the position fixing system. This can be a very important function on free legs, particularly if you are a long way from the mark, since the greatest VMG to Waypoint is not necessarily obtained by sailing straight at the mark. In Fig 2.6 we can see how this works. True Wind Direction Direction of Next Mark Direction for Maximum VMG to Next Mark Polar Curve Fig 2.6 - Optimum VMG to a Mark HB-0845-04 2-44