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1986 Pearson 33-2 sail boat currently located in Duluth, Minnesota. A great boat ready to cruise or do the Wednesday night race series. This boat has only lived in fresh water. Currently in the water through late September.Highlights: Spinnaker car with aluminum whisker pole (2014) North Sails furling genoa 155% (2015) North Sails main (2015) Rocna 15 kg anchor w/30′ chain Raymarine i50/i60 wind, speed, depth Xantrex Freedom inverter/charger (2023) 2 deep cycle batteries (2023) Sail cover & wheel/pedestal cover (2023) Cruiser air conditioner Adler-Barber refrigerator Yanmar 2GM engine Custom steel cradle Marine VHF w/remote mic (2014) 2 piece custom winter cover Autohelm Swim ladderOnly been in fresh water. Fresh coat of VC-17 most years we owned it.
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)
Keel/cb version:
Draft - BU:3.6’ BD:7.0’; Disp.:11750 lbs; Bal.: 4650 lbs.
Wing keel version:
Draft - 4.17’
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