History of catamaran evolution

/History of catamaran evolution
History of catamaran evolution 2017-11-19T18:04:15+00:00

History of catamarans

What is a Catamaran

A catamaran is a multi-hulled watercraft featuring two parallel hulls of equal size. Catamarans were designed to be fishing boats though their use has increased and widened manifold in today’s times. It is a geometry-stabilized craft, deriving its stability from its wide beam, rather than from a ballasted keel as with a monohull sailboat. Being ballast-free and therefore lighter than a monohull, catamarans often have a shallower draft (draught) than comparably-sized monohulls. The two hulls combined also often have a smaller hydrodynamic resistance than comparable monohulls, requiring less propulsive power from either sails or motors. The catamaran’s wider stance on the water can reduce both heeling and wave-induced motion, as compared with a monohull, and can give reduced wakes.

The catamaran was first created by the fishing community ‘Paravas’ in Tamil Nadu in the 17th century. The main feature of these boats was the fact that they had two hulls which offered a lot of stability and balance as compared to the other fishing boats of that era. This concept of two-hulled boats was adopted by the British and then made popular across the world.

Catamarans range in size from small (sailing or rowing vessels) to large (naval ships and car ferries). The structure connecting a catamaran’s two hulls ranges from a simple frame strung with webbing to support the crew to a bridging superstructure incorporating extensive cabin and/or cargo space.

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A Polynesian catamaran

Catamaran-type vessels were first developed as early as 1500 BC by the Polynesian peoples. These early examples were likely related to outrigger canoes and consisted of two canoes bound together with a wooden frame, sometimes accompanied by a sail. Despite their simplicity they were nonetheless effective, allowing seafaring Polynesians to voyage to distant Pacific islands.

Asian catamaran

Catamarans were seldom constructed in the West before the 19th century, but they were in wide use as early as the 5th century by the Tamil people of Tamil Nadu, South India. The word “catamaran” is derived from the Tamil word, kattumaram, which means “logs bound together. The 17th-century English adventurer and privateer William Dampier encountered the Tamil people of southeastern India during his first circumnavigation of the globe. He was the first to write in English about the primitive watercraft he observed in use there. In his 1697 account of his trip, A New Voyage Round the World, he wrote.

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Development

The first documented example of double-hulled craft in Europe was designed by William Petty in 1662 to sail faster, in shallower waters, in lighter wind, and with fewer crew than other vessels of the time. However, the unusual design met with skepticism and was not a commercial success.

The design remained relatively unused in the West for almost 160 years until the early 19th-century, when the Englishman Mayflower F. Crisp built a two-hulled merchant ship in Rangoon, Burma. The ship was christened Original. Crisp described it as “a fast sailing fine sea boat; she traded during the monsoon between Rangoon and the Tenasserim Provinces for several years”.

Later that century, the American Nathanael Herreshoff constructed a double-hulled sailing boat of his own design (US Pat. No. 189,459). The craft, Amaryllis, raced at her maiden regatta on June 22, 1876 and performed exceedingly well. Her debut demonstrated the distinct performance advantages afforded to catamarans over the standard monohulls. It was as a result of this event, the Centennial Regatta of the New York Yacht Club, that catamarans were barred from regular sailing classes, and this remained the case until the 1970s.

In 1936 Eric de Bisschop built a Polynesian “double canoe” in Hawaii and sailed it home to a hero’s welcome in France. In 1939, he published his experiences in a book, Kaimiloa, which was translated into English in 1940.

The Prout Brothers, Roland and Francis, experimented with catamarans in 1949 and converted their 1935 boat factory in Canvey Island, Essex (England), to catamaran production in 1954. Their Shearwater catamarans won races easily against the monohulls. Yellow Bird, a 1953-built Shearwater, raced successfully by Francis Prout in the 1960s, is in the collection of the National Maritime Museum Cornwall.

In the mid-twentieth century, beachcats became a widespread category of sailing catamarans, owing to their ease of launching and mass production. In California, a maker of surfboards, Hobie Alter, produced the 250-pound (110 kg) Hobie 14 in 1967, and two years later the larger and even more successful Hobie 16. As of 2016, the Hobie 16 was still being produced with more than 100,000 having been manufactured.

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Cruising

Cruising sailors must make trade-offs among volume, useful load, speed, and cost in choosing a boat. Choosing a catamaran offers increased speed at the expense of reduced load per unit of cost. A cruising monohull may be as short as 30 feet (9.1 m), whereas Howard and Doane put the threshold for a cruising catamaran at 40 feet (12 m), to achieve the same accommodation of cruising accommodation for crew and supplies. In addition to speed, catamarans draw much less water than do monohulls, often as little as 3 feet (0.91 m); this allows avoidance of shoals and ease beaching the boat to work on the bottom. However, the added beam of a catamaran may cause problems for docking or hauling out by a boatyard. Cruising catamarans entail added expense for having two engines and two rudders. These boats can maintain a comfortable 300 nautical miles (350 mi; 560 km) per day passage, with the racing versions recording well over 400 nautical miles (460 mi; 740 km) per day. In addition, they do not heel more than 10-12 degrees, even at full speed on a reach.

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