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Contact the owner at nine seven two-three four two-five seven four six with any questions…Pristine Beneteau 311 Sailboat. Everything is in great condition and clean, inside and out.Well Maintained.Appraised 2017 for $57,445. This is prior to all the new items listed below were added.. April 2019 – Installed New Full Batten Main Sail with the Lazy Bag and New Jib. The sails were manufactured by Neil Pryde Sails Company that makes the sails for the Beneteau boats. New Jib Sheets, New Lazy Jacks, New Upper Reefing Line, New Dock Lines and Front Bumper were installed. March 2019 –All Exterior Woodwork professionally refinished. August 2019 – Installed New Ignition Switch, Start Button, and Starting Battery Additional Features: Custom made foam Padded Cushions for the cockpit seating area. Microwave, 2 burner stove, oven, sink, and refrigerator in the galley. The head is complete with a sink, handheld shower nozzle and toilet. Located at Scotts Landing, Grapevine Lake.
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 vers. draft BU:2.58ft/0.8m, BD:7.08ft/2.15m
Ballast with CB: 3,085 lbs/1,400 kg
Rig dimensions with roller furling mast:
P = 36.29ft/11.06m
Sail area with roller furling mast = 481 sq ft/44.7m
Same as Oceanis 311.
Thanks to Sufian Hamad for corrections and additional specs.
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