Speed guides

The ORC Speed Guide puts the power and accuracy of the ORC VPP to work for you, the boat owner. Use of the Speed Guide can help your team improve their performance on the water by giving you target boat speeds to achieve for any wind strength and any wind angle and with any sail combination. This package collates and displays in both tabular and graphical form the theoretically predicted boat speed, in knots, of any boat measured for ORC International or ORC Club. The data is given for a wide variety of true wind speeds (6, 8, 10, 12, 14, 16, & 20 knots) and true wind angles, including optimal upwind and downwind VMG angles. The data is also provided for a variety of sail combinations: headsails set on the forestay, headsails set flying, symmetric and asymmetric spinnaker.