Looking for a build plan for a tuff trailerable, weekender, beachable trimaran?

Looking for a tuff foldable, that can beach,take a beating,thinking of a simple 2 person bed with a small head, like the trimaran idea for stability. A design like that could be used as a swimming platform or for observation and have also a warmer area inside, and don't forget about eased of launching. Between 20 to 26 feet long.

 

Sylvain. The following web site has a variety of trimaran plans of the type you may be interested in. Some plans are plywood with foam glass as an option other plans are foam glass. These tris are trailable and strong. Many have been launched. The plans are very good and cost $150 Australian per design for EG 18 to 32 foot tri's. There is some very good support information and some verbal support.
Several of the designs have been built and launched in Canada.
The web site is: Team Scarab multihulls http://www.teamscarab.com.au/
Below is some jpegs of the designs.

 

I would consider a aluminum or a hybrid construction material, i would love to see new ideas.

 

Building three hulls is worse than two. A Catamaran is just as stable, but because both hulls are the same, you can save on setup costs, and have more deck and interior room for the same length.

 

Absolutely right - cat has more space but one of my criteria is lunching and transportation eased; I feel a folding trimaran would be better for this.

 

Folding can be done with two hulls



But why do you need to unfold a boat ? Many cats can be carried on a trailer fully assembled.

"stability. A design like that could be used as a swimming platform or for observation and have also a warmer area inside"
Why does it need to be foldable at all ?



Jarcat Five and Six https://www.jarcatyachts.com/Jarcat5.html

 

I want it to be able to tuck everything in for road used,i do not plan to leave it at the marina and just left at the anchorages is not a option for me i do travel for work and can be out for extended time, but a do have lots of time off,and i like to be out on the water longer than most people (eastern canada we have winter)not depending on a crane important for me and be able to bring it anytime anywhere and be able to deployed it quickly is what I am looking for.

 

You want something different ? What about this as a start point ?
E25 Camper Pod – Harryproa http://harryproa.com/?p=3187

 

That is interesting design kinda like it,something to think about .

 

Hmm... Ketch rig ? 2 old windsurfer mast/sails ? 2 old laser rigs ?
Beams ; telescopic or scissoring or insert ?
length ? 2 equal length hulls ?
special trailer ; for assembly on trailer ?
???????

 

The Jarcat suits perfectly.

 

Aluminium can't be made light enough in this size range.

The Scarab 8 is on special atm for $100AU.

Ray Kendrick has double shuffle which is trailerable. 18' long has similar accomodations and payload to a mid 20's trimaran and much less complex to build. You understand don't you that these boats require about a year full time to build ? like 40 hours a week of solid work ? The trimarans will cost more length for length and take longer than an equivalent cat.

Does it need to fold on the water ? Sango's routinely compete with F9s in club racing.

Sailing Catamarans - Sango - 7.65m version of Wizard http://sailingcatamarans.com/index.php/designs-2/2-catamarans-under-25ft/160-sango

or build an eagle and either a swing wing trailer or just live with rolling teh hulls off the trailer and into position and assembling the boat.

Sailing Catamarans - Eagle 24 open deck easy build roomy cruiser http://sailingcatamarans.com/index.php/designs-2/2-catamarans-under-25ft/455-eagle-24

I suggest you find some build blogs and study them. They will give you an idea of what's involved building a boat in that size range. It's not trivial.

 

Above is Duo 480 by K Designs. Easy everything: launch, sail, rig

 

Lots of very interesting designs, keep them coming