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Composites have captured a large share of the recreational boatbuilding industry for many years. Recent incursions into naval waters include the MAKO patrol boat. Built by Maine Marine Manufacturing LLC (Portland, Maine), its all-composite design solves crew injury problems experienced with the aluminum patrol boat it was designed to replace by attenuating the impact from wave slams. Launched in January 2008, it is currently undergoing trials by the U.S. Navy SEALS. Source: Maine Marne Manufacturing
In a 2007 Freedonia Group study, the recreational boating segment
was expected to rise 5.3 percent annually to $20 billion by 2011. New
boat sales, which hit bottom in 2003, rebounded in 2004 and grew
through 2007 to roughly prerecession rates, according to the National
Marine Manufacturer’s Assn. (Washington, D.C.), thanks in large part to
retiring baby boomers. North America is still the largest recreational
boating market, but Europe is the fastest growing. However, the
combination of the late 2008 housing market meltdown and losses in home
equity, tightening of credit and stock market losses for both retirees
and other leisure activity consumers around the world are likely going
to hit this market hard over the next 12 to 18 months.
Boatbuilders
that work with composites are continuing to move to closed molding to
improve not only workplace safety but efficiency and product
quality/consistency as well. Although the market is dominated by glass
fiber-reinforced polyesters and vinyl esters, boatbuilders are
employing carbon fiber reinforcement not only in sailing yacht rigging
systems (masts, shrouds, stays and spreaders) where it has become the
standard, but in the upper deck structures of megapoweryachts,
primarily in Europe, to decrease topside weight and increase boat
stability. For the same reasons, some observers continue to see growth
potential for carbon in the 20-ft to 40-ft cruiser boat segment.
Additionally, some observers believe that carbon has great potential in
military boats. Estimates of current carbon fiber use range from
450,000 to 590,000 lb (227 to 267 metric tonnes) per year.
A
notable military ship development in 2008 was the announcement that
Northrop Grumman Ship Systems (Pascagoula, Miss.) had awarded SIGMATEX
High Technology Fabrics (Benicia, Calif., 26222) an $11.2 million
contract to supply woven, multiaxial and unidirectional carbon fiber
fabrics the two DDG1000 destroyers that will be built in a Northrop
Grumman Ship Systems and U.S. Navy effort, previously known as the
DD(X). All of the composites fabrication will be performed in
Northrop’s Composite Center of Excellence, located in Gulfport, Miss.