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1988 island packet 27. Bluewater cruising yacht. Outfitted for handicap “One hand” sailing. All lines lead to cockpit. 2016 yanmar diesel 500 Hr. New North sales. Fully battened Main, furling Genoa Furling Staysail, Storm jib, Spinnaker. Carbon fiber Mast. Boom Roller furling Main. AIS. Raymarine Auto pilot. Sugar scoop transome. Swim Ladder. Max Prop. Radar. B&G and Raymarine Electronics. Central air conditioning and heat. Hot and cold running water in galley and Cockpit. Electric anchor windlass. Electric Winch in Cockpit.Cell 631 255 2777
Equipment: Bluewater cruising yacht. 2016 yanmar diesel 500hr. Furling jib and Dutch furling Main. AIS. Auto pilot. Swim platform and ladder. Central air conditioning. Hot and cold water. Refrigerator and freezer. Dinghy davits. Cell 631 255 2777
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)
A SUNFISH on steroids.
Designed by a group of Island Packet employees headed by Bob Johnson. Built at the Island Packet plant in Largo, FL, USA.
Designed for easy setup and appeal to novice sailors.
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