I have seen some of the older homebuilt versions in the occasional copies of the australian magazine 'Multihulls'that I have bought. The F9s I have seen have been built using composites which while not neccesarily beyond the home builder certainly move them into a more difficult league.
They are pretty high performance tris (20knots ) for their size. I dont know the costs involved but high performance isnt cheap.
Do a google search for the farrier website which may offer more insights.
Cheers.
<P ID="edit"><FONT SIZE=-1>Edited by chippie on 03/10/2002 05:49 (server time).</FONT></P>
While not having built one myself, the F9 is an extremely well designed racing machine. What makes it expensive is also the folding system that is arguably the best that there is. Ian Farrier is in the process of designing 'economy' versions of various sizes and I am waiting for a small tri that I can single-hand for up to a week's cruising. You might wish to contact him directly at info@f-boat.com. If you're serious about building, then I suggest that you get a copy of his "STUDY BOOK". This shows the entire process of building, step by step and in great detail.
I would mention that I have no relation with Ian Farrier or his company. It's just that I love Tri's. Way back in 1966 I was deeply involved in experimenting with foils on a home-built Tri, long before carbon fibre, epoxies and vacuum bagging! I sorely miss having one and my next boat will definitely be a Tri.
Fair Winds!
It sounds like you and I want the same thing. I have had a look on the fARRIER Website and it looks very impressive. Looking carefully at what is said it appears a few thousand man- hours is needed!! Probably a divorce forcer but a great boat at the end!!