SA/D Ratio is
the sail area/displacement ratio. This ratio indicates how
fast the boat is in light wind. The higher the number the faster
Cruising Boats have ratios between 10 and 15.
* Cruiser-Racers have ratios between 16-20.
* Racers have ratios above 20.
High-Performance Racers have ratios above 24.
SA / D =
Sail Area / (Displacement in Cubic Feet )2/3
Rousmaniere, J, The Annapolis Book of Seamanship Simon & Schuster,
New York, New York, Chapter 1: The boat p26-35, 1999.
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