Ian Farrier

Ian Farrier (1945–2016) was a New Zealand-born naval architect, engineer, and multihull pioneer widely regarded as the father of the modern trailerable folding trimaran. His revolutionary Farrier Folding System™—a patented, tool-free mechanism that allows a trimaran’s amas (outriggers) to fold alongside the main hull—transformed multihull sailing by making high-performance boats road-legal, launchable by one person, and towable behind ordinary vehicles.
Over a 45-year career, Farrier designed more than 20 models, from 18 ft day-sailers to 41 ft ocean cruisers. His boats—built by Corsair Marine, Farrier Marine, Colorado Composites, and owner-builders—total over 3,000 hulls worldwide, with the iconic F-27 (1985) alone accounting for 700+ units. He passed away on December 7, 2016, at age 71, but his designs remain in production and dominate trailerable multihull racing and cruising.