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Standard features
For sale is a 1993 Catalina 320 deep draft version named Colette that is currently in storage at Crowleys Yacht Yard south of Chicago, IL. A great value in overall fair condition with many extras including working AC, autopilot, two multifunction GNX displays, racing head sail. Boat represents an excellent deal for someone looking for a lower priced entry point, with onboard extras, who doesnt mind putting in a little work to bring into excellent condition. Boat has been in storage for previous 2 summer sailing seasons 2020 and 2021 but has had maintenance checkswork performed by yacht yard while in storage. Owner is looking to sell due to covid related relocation. Features Inboard engine Perkins 100 series M30 27 HP, 1 head, galley, two burner stove with oven, Alder Barbour airwater cold machine refrigeration, air conditioning SSIG-16 Complete 16,000 self-contained unit with digital thermostat, Raymarine EV 100 p70 wheel pilot, Garmin wind transducer bundle GNX, GND10, two GNX displays, rigging, main sail, head sail genoa, and more.
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)
Draft for winged keel vers: 1.3m/4.25’
Updated MARK II version introduced in 1999.
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