Dark Harbor
(Original Gaff Sail-plan)
The 'Sailplan Ratios' below were calculated using a Computer software iprogram.
The initial inputs required were the location of the corner points in, 'Decimal Foot', dimension format. The dimensions were taken from Dark Harbors Sail-Plan drawing shown below.
The below Charts shows the Hull Characteristics that were also required and can be found in the previously posted Static Hydrostatics.
However the 'Righting Moment at 20 degrees' is estimated, since I have yet to make that calculation. Four Thousands Pounds (4,000) will suffice for now. I will update later.
The following drawing is a screen plot of the above Sail points and Hull Characteristics in graphic form. Shown are the Center of Effort of the Sail-plan and the Location of the Center of Laterial resistance.