Trio was an historic 20 ft (6.1 m) trimaran sailboat derived from design by Lock Crowther and built by Howard Stephenson in 1962 using the hull of an Austral 20.
References
Trio (trimaran) Wikipedia(Text) CC BY-SA
Trio was an historic 20 ft (6.1 m) trimaran sailboat derived from design by Lock Crowther and built by Howard Stephenson in 1962 using the hull of an Austral 20.