My Tamanu design has been chosen for a project in Fiji to build 100 canoes. 25 have been completed so far. It has been modified for shunting as...
If you can't row your dinghy under it, don't go to sea in it.
Don't feel bad, you're not the first.
Now we know why there are no books on how to design a multihull.
I built a couple of 44' cats the same way, except I didn't have a flange at the keel. I had the outside rebates at the keel and deck centerline...
Having the amas as far forward as possible will reduce the chance of a diagonal capsize. Note that all modern racing trimarans have them close to...
A 32' catamaran is too small for off shore cruising, Unless it's a Wharram, the wing will be too low and you'll regret it forever.
I have been using epoxy on New Zealand treated ply for the last 25 years without any problem. I called the West people first and they gave me...
Russell Brown has used more HP on his Tornado hulled "Skeeter"
There's no planing that I can see, but it could go even faster without that. The beauty of slim hulls.
My converted Tornado catamaran has a maximum speed of 13.8 knots with a 9.9 hp Honda outboard.
Possibly the cleanest ever.
The Tornado doesn't have much buoyancy aft, so I mounted the motor as far forward as I could while still maintaining good steering.
Same type of motor mount I used on my Tornado conversion.
I wish people would stop using the term "cavitation" The problem is ventilation. Cavitation is a very different thing and causes pitting in...
It depends on whether you're designing your boat for the open sea or for sitting at anchor. Large open spaces just means you'll get thrown...
I have plans available for this 18' paddler. The construction is strip plank and it is a cut down version of my Ulua sailing canoe.
I converted an old Tornado catamaran using a 9.9 hp Honda and it will do 13.8 knots. More info here.
Great Multihull Art
The painting on the cover of the short lived Trimaran magazine from 1970. The boat is Gancia Girl, skippered by Martin...