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A multihull is a ship or boat with more than one hull, whereas a vessel with a single hull is a monohull.
A sailboat or sailing boat is a boat propelled partly or entirely by sails and is smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture.
A sailing hydrofoil, hydrofoil sailboat, or hydrosail is a sailboat with wing-like foils mounted under the hull. As the craft increases its speed the hydrofoils lift the hull up and out of the water, greatly reducing wetted area, resulting in decreased drag and increased speed. A sailing hydrofoil can achieve speeds exceeding double and in some cases triple the wind speed.
The F-27 Sport Cruiser is an American trailerable trimaran sailboat that was designed by New Zealander Ian Farrier in 1984–1985.
Lock Crowther was an Australian multihull sailboat designer. He grew up in Bairnsdale in the East Gippsland region of Victoria. Though his first name was Lachlan by birth, he insisted on being called Lock or Lockie.
Bunyip 20 was a day racing trimaran sailboat designed and built by Lock Crowther and his family in 1959, while he was still a teenager. It was named after the Bunyip, an Australian mythical creature.
Kraken 18 was a day racing trimaran sailboat designed by Lock Crowther in the wake of his successful Bunyip 20 design, as a scaled-down version of the earlier Kraken 25 with similar performance. Its smaller size and folding beams made it more practical and led to its greater success.
Kraken 25 was a day racing trimaran sailboat designed by Lock Crowther in the wake of his successful Bunyip 20 design.
John Marples is a multihull sailboat designer who collaborates with Jim Brown.
Richard "Dick" Newick — more frequently known as Dick Newick — was a multihull sailboat designer.
Victor Tchetchet (1891–1974) was a pioneering early modern multihull sailboat designer from Ukraine who is thought to have coined the term 'trimaran', though Éric de Bisschop built a trimaran in France earlier.
WindRider LLC is a United States manufacturer of sailing dinghy and trimaran sailboats.
Tigercat was a 1960s catamaran sailboat of the Eastern Multihull Sailing Association. In 1961 it was defeated by John Fisk sailing Hellcats II of the Clapham Sands Sailing Club four races to one.
The WindRider 10 is a trimaran sailboat manufactured by WindRider LLC, designed by Mark Balogh and WindRider LLC and introduced in 2002. Production had ended by 2020.
Ed Horstman is an American naval architect and multihull sailboat designer. He was born in Kalispell, Montana. He made his way from Montana to California via the U.S. Air Force where was trained as a helicopter mechanic before serving 4 years in Korea. After the war on the GI Bill Ed attended the Northrop Institute of Technology where, he earned a bachelor of science degree in Aeronautical Engineering. He then worked for aviation giants like Boeing, Douglas Aircraft, and North American Aircraft where he did wind tunnel tests for the XB-70 supersonic bomber. Horstman designed his first trimaran after seeing an ad clipping for Piver trimarans. Ed wrote to Piver requesting information on his 35' trimaran, but never received an answer, so a friend, said, "You're an engineer, why don't you design one." Before starting, Ed took two courses on hydrodynamics from the University of Southern California before building a scale model out of foam with removable amas to determine the maximum beam and buoyancy. The model did not have a movable rudder, and when a gust of wind hit the model hard and it turned into the wind, he knew he got the design right. When he could not find a mathematical model to predict the stress on the beams, he again built models of the beams and put them through a battery of stress tests until he was satisfied that his scantlings were strong enough. Ed started the construction of his first trimaran, a 40 footer with $600 that he borrowed from his grandmother in 1961.
Other West Coast designers were strongly influenced by Piver, yet went divergent ways. Ed Horstman employed Boeing technology to create immense flush-deckers with accommodation in all three hulls—the dreadnaught class of trimarans.
The Searunner 31 is a trimaran sailboat designed by Jim Brown in the 1960s. It is the most popular boat in the Searunner series, which includes models from 25 ft (7.6 m)—40 ft (12 m).
The Ocean Bird is a class of trimaran sailboat designed by John Westell and produced by Honnor Marine Ltd. at Totnes, Teignmouth in the 1970s, featuring fold-in lateral floats on a webless steel-beam frame chosen to provide stability against heeling, yet allow a compact footprint in harbour.
T26 was a trimaran sailboat designed by Victor Tchetchet in the very late 1940s or early in 1950. It was the predecessor to his later craft Egg Nog.
The WindRider 16 is a small trimaran sailboat launched by WindRider LLC in 1995 for 1-3 adults. It was designed by well known multihull sailboat designer Jim Brown. Production had ended by 2020.
The F-31 Sport Cruiser is a family of American trailerable trimaran sailboats that was designed by New Zealander Ian Farrier and first built in 1991.
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