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Selling a beautiful AMF Alcort Sunfish sail boat. The Sunfish is in amazing condition and was stored indoors by the original owner for many years. It is complete and ready to sail. The gel coat has a great shine and the hull is dry, light and stiff. No damage or repairs. Mahogany rudder and daggerboard. Classic red and white color combo. The Sunfish just uses two lines and sets up in about five minutes. Easy to car top or put in the back of a truck. $2600. Call (845)-558-5270
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)
Although the earliest models were built of wood and offered as kits, the fiberglass version, first introduced in 1960, became the most popular recreational sailboat in history. As a result, there were many imitators.
Sunfish Builder Chronology
1952 - 1969 Alcort, Inc. (founded 1945)
1969 - 1986 AMF
1986 - 1988 Loveless & DeGarmo, dba, Alcort Sailboats Inc.
1988 - 1991 Pearson Yacht Co.
1991 - 1997 Sunfish/Laser, Inc.
1997 - 2007 Vanguard
2007 - Laser Performance
Change in class rules permitted a new, slightly deeper daggerboard in the mid-1990’s.
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