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J80

Posted:
17.11.2009 - 13:30:21 (GMT)
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j80
Events: Match Race France
Designer: J Boats
Builder: J Europe

Background

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Marseille International Match Race 2009 (Photo credit: © Gilles Martin-Raget)
The history of J/Boats dates to 1976, when Rod Johnstone designed the ground breaking J/24, a fast, easy-to-sail racer that attracted sailors frustrated with the vagaries of MORC and PHRF handicapping systems. Rod formed the company with brother Bob, who came aboard to handle marketing. They hired Everett Pearson of Tillotson-Pearson, now TPI Composites, to construct the boats. In the ensuing 20 years, more than 5,200 J/24 's were produced, and the fleet became the second largest one-design keel boat class in the world, behind the Starclass. By the early 1990's, the company was a fixture in the boatbuilding business.

Foll owing the successful launch of the J/105, the company unveiled the J/80, which is carving a niche in the marketplace with a broad customer base. Measuring 26' 3", it is a versatile performer designed to have market appeal among those entering the performance arena for the first time, dinghy sailors stepping up to a keel boat, big boat racers seeking a simpler method of going around the buoys, and daysailors.

At a glance, the boat's low profile and soft chine are aesthetically appealing. A spacious 12' cockpit offers plenty of room for a four-person race crew, and its decks are uncluttered by ankle-knocking hardware. More than 1300 boats have been built since hull #1 was launched in April, 1993.

Construction

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Marseille International Match Race (Photo credit: © Gilles Martin-Raget)
The J/80 hulls are cored with 3/8" AL-600 over which are laid layers of fiberglass chop and bi-directional and unidirectional mat. Three-ounce mat is used to reinforce the keel sump, and 6" wide strips of ¾-ounce mat are used to reinforce deck flanges.

The use of vinylester resin has inspired the company to offer a 10-year blister warranty.

The hull-deck joint is bonded with Plexus, a high strength adhesive Johnstone says is stronger than the laminate itself. The company says it has no reported hull-deck leaks since it began using Plexus. (We do know of one Lagoon catamaran that sprung a hull-deck leak, not because the adhesive failed, but because a worker had failed to fill the entire seam.)

The keel, which is cast from ceramic molds, is attached to a 12"-deep stub using seven, ¾" J-shaped stainless steel bolts. The 1,400-pound lead keel is coated with four coats of epoxy primer.

As on most J/Boats, the mast step is an aluminum "I" beam tabbed to the hull on both sides of its base. Transverse aluminum webs welded to each end are through-bolted at the aft end into the main bulkhead and forward to another bulkhead. The mast is attached with four bolts attached to a plate that allows fore and aft adjustment at the base.

The retractable bowsprit is located to starboard.

The fiberglass rudder is molded in two halves that are cored with balsa before being married and wrapped with fiberglass at leading and trailing edges.

Specifications
LOA - 8m
LWL - 6.71m
Beam - 2.51m
Draft - 1.49m
Displacement - 1,315kg
Ballast - 635kg
100% SA - 31.40m
I - 9.60m
ISP - 10.06m
J - 2.90m
P - 9.14m
E - 3.81m
J/Sprit - 1.91m
DSPL/L - 122
SA/DSPL - 27

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