In this post Frank Smoot shares some great information about how he came up with new amas for his DIY Trimaran.

Trimaran folding amas. Designed by Ian Farrier a Kiwi who emigrated to California by way of Australia with the specific goal of perfecting his concept of a production-built trimaran with folding amas the F-27 is both an excellent high-performance coastal cruiser and a competitive one-design racing machine. Compared to building a main hull for a trimaran the amas seem like a small job. Last sailing trip of the Little Tri accompanied by my friend Warden for the day out.

One key to the success of Farrier trimarans is the easy trailerability made possible by the unique Farrier Folding System. By Paul Koch March 18 2019 in Multihull Anarchy. Folding and unfolding a Corsair takes only a minute.

Though ALL is fixable this should certainly be avoided. A FOLDING MECHANISM FOR THE 21ST CENTURY To enable easy and more affordable single-berthing at the marina the R40 will be a folding trimaran folding the outer floats amas up against the centre hull but with an important difference. Short video showing how the Telstar 28 Trimaran outriggers extend and retract.

Most notable is the folding mechanism for the amas. Corsair marine trimarans feature folding amas and numerous performance features. The Telstar 28 has a number of distinguishing features when comparing to the earlier versions as well as other foldable trimarans.

This is especially important for trailering. FORRO550 is a folding expedition trimaran still in development. One owner who ignored this developed cracks in the ama sides.

After reading the below you can see all of Franks ama construction photos beginning on this. Safety edit Trimaran safety features include amas with multiple sealed partitions controls that all run to the cockpit a collision bulkhead partial or full cockpit coverings or windshields and drain holes in the cockpit that can adequately drain the cockpit quickly among other things. If the folded storage stool heights are not correctly adjusted so that both ends of the ama touch at the same time.