Corbin 39 Aft Cockpit Pilothouse Cutter Rigged Sloop
“JOINT EFFORT”; HIN# J000690680.…………BOAT COMMISSIONED; 1984 AT SCITUATE MA.
Hull finished in 1980 at Corbin bateaux in Montreal. Fitted out and commissioned in 1984. Fitting out by EUROPEAN CUSTOM YACHTS
This boat is ready for world travel, the ocean rig has been recently re-rigged with 316 wire with Staylock fittings. Two “Profurl” roller furlers. All mast and boom fittings are installed with “tufgel” anti seizing.
Boat has 8 stainless steel self-tailing winches, an Edson mount for outboard, a Force 10 BBQ, dodger with side curtains, 3 dorades for ventilation and two large bow lockers. There are 8 opening hatches topside, all have hand fitted screens for letting in the breeze, and foam inserts to keep the beating sun out. The custom boom gallows is made of stainless steel/mahogany and has the name of the SV “Joint Effort” inscribed with gold leaf paint. The cockpit has two lockers. The portside cockpit locker is set up so you can climb down into the aft part of the engine room allowing ease of working on water heater, hydraulic steering, mechanics, wiring, and such. All exposed wood on exterior has new Sunbrella covers except the cap rails
All sails are in excellent condition., the mainsail (Doyle-Boston), genoa (Griner-North), staysail (De Mattia). Main sail is setup with a lazy jack system. Genoa and staysail have ProFurl roller furlers.
Boat’s interior was finished by Kaz Zatec (European Custom Yachts). All joiner work is mahogany, finished in the old world fashion. The interior of this boat is unsurpassed. This craftsmanship is of the highest boat building quality. “JOINT EFFORT” is a very dry boat, no leaks, no condensation because of the insulated hull. There is no hull moisture. Boat’s bottom has 6 coats of INTERLUX 2000, there has never been a blister on this boat.
“JOINT EFFORT” was completed as number 001, by “European Custom Yachts.” “JOINT EFFORT” was highly regarded while sailing on the east coast by her original owners/builders. Gene and Irene Whitney are the second owners of “JOINT EFFORT.” For the last 17 years, “JOINT EFFORT” has been seen cruising in the Great Lakes, the North Channel, and Georgian Bay. Home ports have been on Grosse Ile, MI. GIYC & FYC, and Cheboygan, MI at the Duncan Bay Boat Club (DBBC). This is a very special yacht, designed and built for a couple to sail the waters of the world in comfort and safety.
LISTING OF EQUIPMENT:
Perkins 4-108 approx. 1400 Hours . New engine installed 1995 New ZF transmission V-drive 170 amp CS 144 alternator.(new 2010) Balmar 3 stage voltage regulator (new 2010) Two steering stations, both hydraulic 12 volt refrigerator: w/freezer: Port side, long and deep, well insulated, w/shelving which makes it easy to work with Seafrost Freezer, Starboard side under Bar w/stained glass Cetrex hydraulic auto helm Raytheon radar Kiss wind generator Microwave: Starboard w/carousel Prosine Inverter/charger: Pilot House Starboard (new 2010) Trojan T145 batteries (6) new 2010, (1) separate battery dedicated to START Engine Hot & cold pressure water ….three (3) tanks, 145 gallons SIMPSON/LAWRENCE Manual windless Anchor wash down Two anchors, 45 lb CQR. With all chain manual windlass, Danforth with 150 ‘ rode with chain 12000 B.T.U. A.C. and electric heat EMON II Battery Monitor System: Pilot House aft. VHFs + hard wired and 1 handheld (new 2010) AM/FM: Main Cabin Starboard (new 2010) Two aluminum fuel tanks..72 gals total Newer RIB with 15 hp Mercury. Ob Leather seating inside, all berths are newly recovered Two (2) heads All interior flooring is custom finished oak parquet. Many more features not mentioned here …
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 √LWLA 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)
In 1977 Marius Corbin commissioned Robert Dufour of Montreal, Quebec to design him a sailboat based on a one-off 39-foot Dufour design named Harmonie. Mr. Corbin asked Mr. Dufour to increase the freeboard and flush the deck. In 1979, the first Corbin 39 came out of the resulting mold, and the Canadian manufacturer produced 129 Corbins until 1982. Most were sold as kits in varying degrees of completion. In 1982, a fire destroyed the deck molds, but because of continued strong demand, they decided to update the molds and continue production. The last Corbin 39 produced, hull number 199, was launched in 1990.
The Corbin 39 is a double ender in the classic Scandinavian lineage of serious offshore cruisers like the Westsail 32. She features a long fin keel of 6′ draft, high freeboard, and a blunt bow. Corbin produced various deck molds including flush, pilot, center cockpit, and aft cockpit variations.
Corbins have have an impressive 11 layer schedule of mat and roving with a 16mm Airex core. The deck is a 3/4″ core of marine grade mahogany early on but later Airex foam. The ballast is 9,000 pounds lead encapsulated with extra layers of fiberglass around the keel for protection. Most spars are by Everett Bastet of E.B. Spars Inc. in Quebec. Early ones had either a 46′ single spreader main or a 51′ turbo charged double spreader. Later most had 49′ double spreader rigs. All rigs are deck stepped.
Corbins with their fin keel and skeg rudder combination are better sailing than their 26,000 pounds displacement might suggest. They are meant as Marius Corbin writes to take someone, “safely and comfortably around the world…We get postcards from all over the world…what better recommendation is there for a strong and seaworthy vessel.” The cutter rig with a reefed main is a safe and seaworthy combination.
Of the 199 hulls, 184 were owner finished. These owner finished hulls were shipped in varying degrees of completion out of the Corbin yard. In 1982, a fire destroyed the molds. Post-1982 Corbins have larger cockpits and a further forward mast step to lessen weather helm. Corbin 39’s with bowsprits also sail more balanced. Look for a Corbin 39 with a double spreader spar.
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