Join Date: Nov 2004
Location: New jersey
Thanked 5 Times in 5 Posts
Rep Power: 11
I think the reason we can sail or motor faster than hull speed can be accounted for largely by considering the speed at which the current is moving us at.
I don't know if the asymmetrical shape of a heeled boat affects the formula or if it is only the waterline length, but I think its the latter only.