Yacht Polar Diagrams You can read the Polar Plot by placing the boat on the C curve and tracing around the concentric arc to determine the speed of the boat. For example, click on 60, this will point the boat so that it is sailing at 60 degrees off from the wind direction. Now trace around the arc to see that the boat is achieving 8 knots.
Yacht Polar Diagrams You can Wiki or Google it to find out more. Basically, a polar diagram is the graphical diagram, consisting of the theoretical maximum boat speeds at various true wind speeds and headings, along with the associated upwind and downwind VMGs (velocities made good). Knowing your boats optimum points of sail with respect to the wind can give you an edge in a race or get your across oceans is a shorter amount of time.
Yacht Polar Diagrams Build your own polar diagram. Mark Mills is a designer well known for winning designs such as Mariners Cove, Tiamat, Alegre, and production designs such as the King 40 and DK 46. Originally from California, Mills studied yacht design at the Southampton Institute, before launching his first design, Aztec, in 1996.
Yacht Polar Diagrams Create Polar Diagram. BEAT VMG: The Velocity Made Good, the speed made directly upwind (always less then boat speed) RUN VMG: The Velocity Made Good, the speed made directly downwind (always less then boat speed) GYBE ANGLES: the best angle to sail downwind with the best VMG, usually around 150 degrees with little wind and potentially 180 degrees in a lot of wind.