Looking to move my family aboard a boat in the next year or two. Still looking for the "ideal" 3 cabin blue water cruiser. Wish there were an easier way to search for details like that within this database. I've seen a few in the $50 - $75K range. Just nothing yet that has really got me saying that's the boat.
Also, can someone decipher the SA/D logic? I understand that it means Sail Area to Displacement. Having sailed primarily day sailors or One Design dinghies, am I accurate in saying I want a lower # for a higher Displacement and smaller Sail area? Will this even come into play with storm sails and reefing the sail ??
How many people in your family? What ages?
What's your max price to buy & outfit?
Do you intend to cruise extensively or just looking for accommodations with benefits?
How much sailing experience in your family?
SA/D is a means of indicating how much sail area is on a boat compared to other boats and it is a rough indication of speed potential in moderate conditions. For similar boats the boat with the higher SA/D will likely be faster than the other boat in MODERATE wind conditions. In moderate winds at moderate speeds (at or near hull speed) the wave making component of drag is the dominant part of total drag.
In light wind conditions SA to Wetted surface area is a better indicator of relative speed potential as total drag is dominated by the friction drag portion. A boat with a higher SA/D probably has a high SA/WSA ratio to, but that is really dependent on hull shape.
In high winds a whole bunch of factors come into play including whether the boat is stable enough to continue carrying enough sail, how heavy the boat is and whether the hull is shaped to surf or plane. A lower Displacement to Length Ratio and higher SA/D ratio would indicated better speed potential but probably also a boat that takes more attention to sail acceptably let alone well.
In general a higher SA/D indicates better speed potential but there are a lot of modifiers.