Polar Diagram Sailing. It normally consists of the right side of a line chart with the radius representing the yacht speed and the angle representing the wind direction blowing from top to bottom. Every type of boat has its polar diagram or vpp velocity prediction program computed from hull shape weight rigging and a sail setup.
5 tips on developing your polar diagrams to improve your boat speed. The polardiagram offers graphs for both upwind and downwind sailing. These diagrams are an asset to understanding relationships between performance sail selection wind speed and wind angle.
Every type of boat has its polar diagram or vpp velocity prediction program computed from hull shape weight rigging and a sail setup.
Click on any twa true wind angle on the right bar and watch. 16 knots 12 knots and 8 knots. 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. Speed guides are available through sailor services on the orc website.
