Boat Design Comparison

Chose a category from the left to compare all designs in that category. To compare individual designs of interest select them from the menu to the bottom left, then hit "Compare" at the bottom of the menu


Drawings Body Plan Drawing
Simple Simple Wood Strip Kayak Side View Drawing Simple Strip Planked Kayak Plan View Simple Strip Built Kayak End View
Night Heron Double Night Heron Tandem Sea Kayak Profile Drawing Night Heron Tandem Sea Kayak Top Plan Lines Night Heron Double Sea Kayak Bow View Drawing


Length (Ft) Beam (In) Beam Gunnel (in) Waterline Length (Ft) Waterline Beam (In) Design Displacement (Lbs) Draft (In) Waterplane Area (Sq Ft) Wetted Area (Sq Ft) Surface Area (Sq Ft) Volume (Cu Ft)
Simple 15.50 26.00 14.60 24.30 260.10 3.50 20.30 22.50 57.00 15.50
Night Heron Double 21.00 25.00 19.40 24.70 499.00 3.80 28.60 34.10 91.00 21.40

Secondary Measurements

Prismatic Coefficient Block Coef Midship Area Coefficient Waterplane Area Coefficient Lateral Plane Coef Sinkage Moments to change trim 1 inch Righting Moment at 1 degree Vertical Center of Gravity above DWL
Simple 0.60 0.41 0.69 0.69 0.82 96.00 80.10 2.47 6.50
Night Heron Double 0.61 0.51 0.84 0.72 0.68 136.00 151.10 1.92 5.90