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WEST WIGHT POTTER 15 ft, 2009 sailboat for sale Swing keel North Sails (white and red) with sail bags: main and furling jib in good condition with no rips or tears mainsail cover (red) jib cover (white) fiberglass rudder with wood tiller handle tiller cover tiller clutch bimini top (red) cockpit side rails bow rails boat hook (extendable) paddle (extendable) Danforth anchor with chain and rode cabin and cockpit cushions in great condition cabin windows crank open and have screens New battery in 2022 New electrical switches with fuse block and battery power cutoff in 2022 All light bulbs replaced with LED’s in 2022 New rub rail 2022 New cowl vent with snap on deck plate 2022 New main sheet halyard 2023 All exterior lights and cabin light and fan work 2009 2.0 HP Honda outboard motor starts on the second or third pull Pacific trailer has bearing buddies, a spare tire, and a mount for the outboard Gudgeon mounted mast crutch for trailering The most recent photo is the one with the tarp over it taken in Nov 2023 during winterization Boat is located on the hard at Lake Manawa in Council Bluffs, Iowa or phone 712-545-0-five-five-nine
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)
aka POTTER 19.
An earlier version was the HMS 18.
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