NOTES:

Units are in feet and pounds.

The parameter to be computed is always derived and cannot be input. Click the circle in the right column to indicate which parameter to compute from the other values entered.

**CSA**is the maximum cross sectional area of the hull; on a proa this is at the mid point.*******IMPORTANT!!!**If "Use minimum wetted surface" is checked then**CSA**may not be entered manually. Awhere Draft=*semicircle cross section is assumed***BWL**/ 2 and**CSA**=(pi * Draft^2) / 2.If "Use minimum wetted surface" is

**not**checked then**CSA**must be entered manually and**BWL**is used only to calculate "Length-to-Beam ratio"; the shape of the cross section is up to you!**LB**is always derived and cannot be input.If in doubt about the results, use the "Calculate!" button.

Also:Mainsheet Load CalculatorPrismatic coefficient study

Sailing links |
Proa links |