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Ac75 vmg. Maybe its just the changing wind direction that it cant make changes quick enough but its really annoying. Link to post Share on other sites. Similarly the optimum angle to produce the best VMG to windward is shown and can be used in similar manner to calculate tacking angles.

Module 5 prepares you for the shotgun of jargon that will be delivered in module 7. Take the optimum mode or VMG. We have been reliably told that the upwind VMG of the AC75s has increased by a couple of knots up to the end of the Final.

Its more obvious downwind. Stick a fork in it this comparison is done. Head to the Foiling AC thread for discussion.

The first point the AC75 must fly as soon as the wind allows the start of the regatta. Anyone know what is going on with VMG in the AC75 series. EVERYTHING IS CONNECTED ON AN AC75 The subtle points of the 36th Americas Cup from the eyes of a sail designer.

Graphic of AC75 yachts racing on a course on the outer Waitemata Harbour off North Head. Especially upwind when we reach 35-36 knots with VMG close to 30 we are amazed. Good comparison of how the boats stack up.

Upwind these AC75s are hitting 30 knots in 12 knots of wind. On the curve for each wind speed there is a crossover where the headsail is changed from a jib to a spinnaker. But the Kiwi boat goes upwind with a slightly higher VMG.