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Santana 23D, 1980 sailboat for sale Daggerboard boat draws 5 1/4 ft board down and 10” board up. Fun and lively boat sails well in any condition.
The boats has two mains. One North (fair) FX (Used 6 times) FX 155% ( Used 5or six times) , 105% ( Good), and two old spinnakers.
Painted inside, cushions recovered, new stereo, two new Richie compasses. The lower spreaders need to be replaced, some touch up on the inside paint forward starboard. No trailer or motor. It will need a bottom job if keep in water. Not much under the water with the board. has 26 sq ft more sail area than a J24 and weighs around 350 lbs less. 174 P.H.R.F. rating New bottom put on boat $5000
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
A more accurate formula devised by Dave Gerr in The Propeller Handbook replaces the Speed/Length ratio constant of 1.34 with a calculation based on the Displacement/Length ratio.
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio.311
Hull Speed = Max Speed/Length ratio x √LWL
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64)2/3
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam1.33)
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
This Drop keel version was the first SANTANA 23 (usually referred to as SANTANA 23 D).
Dagger/keel weight: 170 lbs.
A fixed keel version, SANTANA 23 K, appeared somewhat later.
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