design mathematics practical

Dear All, To add to a Maxi Racer 90 foot. L= 4.06 X V^2 X S X Cl or the Faugh.. calculation 1/2 length of boat to calculate. Basically AC 75 s are almost 80 and 90 Maxi Racer S/Y Milene is 12 tons not 7 ! The Keel is 10 tons that has to be changed to a torpido still to have some balance...

already read a lot of reference books about yacht/sailboat design. Find a lot of beautiful designs and very high level explanation of the drawings on paper. but failed to get design mathematics expained for 3d design. Seems to be forgotten, only reference to spline, nurbs, polynominals...