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The trimaran configurations has also been used for both passenger ferries and warships. The Australian shipbuilding company, Austal, investigated the comparative merits of trimaran ships, catamarans and monohulls. It found that there was an optimum location for the outer hulls in terms of minimizing wave generation and consequent power ...
The relationship between monohulls & multihulls. A multihull is a boat or ship with more than one hull, whereas a vessel with a single hull is a monohull.The most common multihulls are catamarans (with two hulls), and trimarans (with three hulls).
Catamarans have two distinct primary performance characteristics that distinguish them from displacement monohull vessels: lower resistance to passage through the water and greater stability (initial resistance to capsize). Choosing between a monohull and catamaran configuration includes considerations of carrying capacity, speed, and efficiency.
catamaran = two symmetric hulls; proa = two asymmetric hulls, reverse-shunting (interchangeable bow/stern) trimaran = three hulls; quadrimaran = four hulls;
The following is a partial list of sailboat types and sailing classes, including keelboats, dinghies, and multihull (catamarans and trimarans). Olympic classes [ edit ]
Traditional sailboats are monohulls, but multi-hull catamarans and trimarans are gaining popularity. Monohull boats generally rely on ballast for stability and usually are displacement hulls. This stabilizing ballast can, in boats designed for racing, be as much as 50% of the weight of the boat, but is generally around 30%.
Multihulls offer tradeoffs as cruising sailboats, compared with monohulls. They may be catamarans or trimarans. They rely on form stability—having separate hulls far apart—for their resistance to capsize. [14] Their advantages include greater: stability, speed, (for catamarans) living space, and shallower draft.
Displacement hulls - Monohull boats frequently ride deeply in the water, this is known as a displacement hull. Planing hulls - Hulls that ride on top of the water are called planing hulls, because when they reach speed, the hulls are substantially lifted above the water; this is known as planing (to plane).