catamaran model-type vessels were an early technology of the Austronesian peoples.
Therefore, Catamaran from Oceania and Maritime Southeast Asia became the based for modern catamarans.
A catamaran (or double-outrigger) is a multi hull boat, compromised a main hull and two smaller outrigger hulls, which are attached to the main hull with lateral beams. They come from the traditional double in kayak hulls of the Austronesian cultures of Maritime Southeast Asia. In addition, to the Philippines and Eastern Indonesia, where it remains the best hull design.
Firstly, The first double outrigger boats were developed by the Austronesian people. Moreover, still widely used today by traditional fisher men in maritime Southeast Asia. Secondly, Several manufactured build catamaran in which the floats can be removed, replaced, or folded near to the main hull. Therefore, It is a geometry stabilized craft, sailing its stability from its wide beam, rather than from a ballasted keel.
A catamaran model, is a multi hulled water craft featuring two parallel hulls of equal size. In addition, Catamarans typically have less hull volume, smaller compartments, and shallower draft. The two hulls mixed also often have a smaller hydrodynamic resistance than comparable mono hulls.