There some speed graphs like this online: https://www.catsailingnews.com/2013/07/ac72-polars-penalties.html https://www.catsailingnews.com/2013/07/ac72-polars-

There some speed graphs like this online: https://www.catsailingnews.com/2013/07/ac72-polars-penalties.html https://www.catsailingnews.com/2013/07/ac72-polars-penalties... I think what you re saying is that you can't be at 0 degrees to the wind, which i guess is true