A trimaran is a multihulled boat consisting of a main hull (vaka) and two smaller outrigger hulls (amas), attached to the main hull with lateral struts (akas). The design and names for the trimaran components are derived from the original proa constructed by native Pacific Islanders.
Read more about Trimaran: History, Multihull Component Terms, Comparison To Monohulls, 33rd America's Cup, World Records, In Naval Ships, Image Gallery Sailing Trimarans, Image Gallery Engine Driven Trimarans