Trimaran Trimaran A trimaran (or double-outrigger) is a multihull boat that comprises a main hull and two smaller outrigger hulls (or "floats") which are attached to the main hull with lateral beams. Most trimarans are sailing yachts designed for recreation or racing; others are ferries or warships. The word "trimaran" is a portmanteau of "Tri" and "(Cata)maran". It is thought to have been invented by Victor Tchetchet, a pioneering, Ukrainian-born modern multihull designer. The first trimarans were developed by the Austronesian people and are still widely used today by traditional fishermen in maritime Southeast Asia, Madagascar, Micronesia, and Polynesia. Some of
Pontoon Beach, Illinois Mississippi River from Pontoon Beach. Pontoon Beach, Illinois Pontoon Beach is a village in Madison County, Illinois, United States. The population was 5,836 at the 2010 census. Pontoon Beach is located at (38.726078, -90.060505). According to the 2010 census, Pontoon Beach has a total area of , of which (or 79.75%) is land and (or 20.25%) is water. As of the census of 2000, there were 5,620 people, 2,134 households, and 1,519 families residing in the village. The population density was 686.9 people per square mile (265.3/km²). There were 2,341 housing units at an average density of 286.1 per square