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Herreshoff 12½ (keelboat)
The Herreshoff 12½ Footer is a one-design keelboat. History Nathanael Greene Herreshoff designed the 12½ footer in 1914. It has been in continuous production since then, and is nearly universally acclaimed as one of the finest small boats of all time He was 66 years old by then, and had all the experience from a full and legendary career of designing and building yachts. He had already accumulated 5 of the never-matched record of 6 consecutive America’s Cup defenses, and 6 consecutive victories. The Herreshoff Manufacturing Company took the first orders for the 12½ footer in 1914 and built 364 wooden hulls through 1943. Following the closing of HMC production, the Quincy Adams Yacht Yard was licensed by HMC to build the design. Quincy Adams used the Herreshoff builder’s plate, and built 51 hulls from 1943 through 1948. The Quincy Adams boats had hull numbers in the 2000s, and were planked with mahogany rather than the white cedar used by HMC. They also have something o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monohull
image:monohull.svg, right A monohull is a type of boat having only one hull (watercraft), hull, unlike multihulled boats which can have two or more individual hulls connected to one another. Fundamental concept Among the earliest hulls were simple logs, but these were generally unstable and tended to roll over easily. Hollowing out the logs into a dugout canoe doesn't help much unless the hollow section penetrates below the log's center of buoyancy, then a load carried low in the cavity actually stabilizes the craft. Adding weight or Sailing ballast, ballast to the bottom of the hull or as low as possible within the hull adds stability. Naval architects place the center of gravity substantially below the center of buoyancy; in most cases this can only be achieved by adding weight or ballast. The use of stones and other weights as ballast can be traced back to the Ancient Rome, Romans, Phoenicians and Vikings. Modern ships carry tons of ballast in order to maintain their stabil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |