How you rig it is up to you.
Trimaran plans free. Usually built with chine logs but could be adapted to stitch and glue as long as you glass tape the seams. Details of all the joints are provided on first-class plans that are easy to follow. TORTUGA TOO a TRI-STAR 39 similar to the design pictured above was the first Trimaran Sept 1979 to sail from east to west.
R42 Custom High Performance Bluewater Trimaran. Full plans to build the 47m plywood multihull Geelong Basic Plans to build this boat which you can walk to the water. The sail rolls up and is reefable to any size in.
The Strike 18 is a dry comfortable trimaran. A new easy to build sheet ply design by Mike Dann. Plans for the M60 M80 and M90 are set out in a simple format showing a step by step approach to help you to go sailing with minimum amount of time.
The Seaclipper 10 for instance uses aluminum pipe with bolted connections for easy demounting although at only 8 wide the boat can be. Designed by Andy McCulloch to be an out and out racer this design is still competitive today but not for the faint of heart as it is difficult to sail. The rig is simple using a windsurfing mast.
TR36 Fast cruising trimaran with aft cabin or open cockpit. The Scarab 16 16 foot long is a small folding trimaran for two adults and 2 small children. For more information or to comment about a particular free plan please contact the owner of the page you found the plan on.
Strike 16 Trimaran. Under the cockpit floor accessible from inside the cabin. Another boat you can build in your garage.