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1986 O’Day 40’,a 3 owner cruising sailboat. Originally from Boston and was dry docked and stored every winter season. Brought to St. Croix, US Virgin Islands in 2023 and has remained. Designed by C. Raymond Hunt and Associated and Phillip Briand as a Cruiser. Originally designed as the Sun Fizz for Jeanneau with the addition of a sugar scoop transom, and a revised interior. Internally mounted spade rudder, controlled by a wheel, and a fixed fin keel. Fitted with a Westerbeke 46 Hp. diesel engine with only 3350 original hours. Sleeping accommodations for up to seven people, with a double “V” berth in bow cabin, a large “U” shaped settee around a drop-down table and a straight settee in the main cabin, and a aft cabin on the starboard side with a double berth. Main cabin head room of 6’5”. Galley has a “U” shape with a three burner Force gimbal stove/oven, and a top lid Sea Frost 12 volt cold plate refrigerator, double stainless steel sink. Navigation station is opposite the galley on is on starboard side. Head is located aft of the forward bow cabin on the port side, includes a shower with heated hot water(with a separate hot water holding tank). Both mainsail and roller furling head sail are in good condition, with a Sheafer Furling Headsail. All lines run into the cockpit for single handed sailing. The design has a hull speed of 7.76 knots for fast cruising.
Equipment: Water capacity: 45 X 2 Holding Tank: 20 gallons Electronics: Raymarine Hybrid Touch, Chart Plotter, Depth, Color Radar VHF Radio, Epirb, Flares, Lifejackets Batteries: 4-12 volt deep Cycle A.G.M.- 2022 Solar:1-100 watt Flex panel with Xantrex controller Propeller: 2 Blade, self feathering Sail area: 699.00 FT 2 Ballast: 6600 lbs. Hull type: fin keel with spade rudder Anchor: 35 lbs. Rocna Stainless Steel with 200 ft 7/8 galvanized chain Windlass: Loranse Electric Canvas: Bimini top and dodger Outdoor grill: Magna S/S propane rail mount Dinghy: 8 ft. Walker Bay
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)
Based on the SUN FIZZ 39 > O’DAY 39 by Briand, with modifications by Hunt Associates. Differences from the O’DAY 39: Extended ‘suger scoop’ stern, different interior layout.
Shoal draft version:
Draft: 4.90’ / 1.49m
Displacement: 18500 lbs./ 8392 kgs.
Later models (> hull #135) have taller rig.
I: 52.00’ / 15.85m
J: 15.25’ / 4.65m
P: 46.00’ / 14.02m
E: 13.25’ / 4.04m
See O’DAY 40 +135 for some slightly different specs on later boats.
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