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The Dufour 385 Grand Large sailboat is a cruising monohull, built by the Dufour Yachts shipyard in France. This fixed keel sailboat, rigged as a fractional sloop, designed by the naval architect Patrick Roso, is 11.36 m long with a maximum draft of 1.76 m.
Equipment: 3 cabin version, this sailboat has never done a charter, and no insurance claim then 3 owners to date and has undergone good upgrades over the last few such as:
Garmin GPS Radar AIS Receiver Transmitter 2023
260 AMP 4 x 6 volt battery change in 2022
Hypalon Zodiak dinghy with 15 hp Yamaha engine complete maintenance done in 2024
Antifouling done in 2024
Spectra 25 l per hour watermaker (on 12 volt) redone all joints in August 2023
Windlass changed in 2023 Lofran 1500 watt Genoa furler change in 2021
Genoa 2018
Mainsail 2018
Standing rigging changed in 2023 by Caribes marine
Sailboat ready or almost ready to set sail with a new team for other great adventures. Canadian-flagged sailboat and taxes not paid for Canada
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)
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