Small tri ( 17 ~ 23 f )

Discussion in 'Multihulls' started by murban, Jun 10, 2010.

  1. murban
    Joined: May 2010
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    murban New Member

    Hello all designers, builders, sailors ....

    I am in the process of choosing the right design for small tri.
    All I want is a two person small tri with a "spartan" accomodation ( tent in/on cockpit or small cuddy cabin). Max lenght 23`, max weight 800kg, must be trailable, simple building method (plywood + glass + epoxy).

    After looking a lot on internet, these are currently my favorites :

    W17 by Mike Waters http://www.smalltrimarandesign.com/Trimaran-Articles/w17-plans.html

    Sardine run http://hensevalyd-english.jimdo.com/works-and-creations/trimaran-sardine-run-5-50m/

    Discovery 20 http://www.chriswhitedesigns.com/trimarans/discovery_20/

    CC Cylone 23 http://www.duckflatwoodenboats.com/mainpages/gallery?KID=55

    I would like to hear your opinion which design to choose, or if you have any alternatives to this designs.

    THX a lot,

    Greetings,

    Miha
     
  2. captainsideburn
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    captainsideburn Junior Member

  3. murban
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    murban New Member

    Scarab 16

    Another alternative ( although a little bit small ) :

    Scarab 16 http://www.teamscarab.com.au/scarab16/design.html

    scarab 18 (650, 670) are also great BUT, I think there would be a problem building a foldinig mechanism (laser cutting / price ....)
     
  4. cavalier mk2
    Joined: Mar 2010
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    cavalier mk2 Senior Member

    Don't forget the Cross 18, it folds and the plans are affordable.
     
  5. Richard Woods
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    Richard Woods Woods Designs

  6. Chris Ostlind

    Chris Ostlind Previous Member

    One of my solutions for a comfortable, easy to build and sail, coastal cruising trimaran that can sleep two is the A225 shown below.

    This is a 22'6" demountable boat built in stitch and glue marine plywood with epoxy/glass laminates. The sail rig is split into a low aspect yawl setup for trimming and boat control throughout a wide variety of wind and sail angles.

    Sleeping arrangments can be varied from two in the main cabin, to one in the main cabin and one on the cockpit deck with a simple tent. Adventurous persons could go so far as to rig the boat for a full, side to side enclosure the includes the tramps and the cockpit.
     

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  7. bruceb
    Joined: Nov 2008
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    bruceb Senior Member

    an opinion- only

    I like the design of the sardine run best- but it is de-mountable, not foldable. That can really make a difference, even on a boat this light. Other than that, there is a lot going for the design; it is from a very qualified designer, it has a real interior, and a prototype has been built. It also looks as if it should sail well and should be easy to construct. Bruce
     
  8. Team Scarab
    Joined: Mar 2010
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    Team Scarab Junior Member

    Small Tri

    Hi Murban,
    The plans for the Scarab 18 have all the dimensions required to loft and cut the hull panels and bulkheads. No laser cutting required there, just a jig saw.
    The aluminium arms for the folding system are water cut, the equipment for this seems to be available in most cities where there is some industry. We live in the bush 45km from the nearest large town and have an engineering shop just up the road (10km) where I can get my folding system components cut at a very reasonable cost. The Scarab 16 requires no water jet cutting as the folding system is different to the 18.
    My personal Scarab 18 will be ready to launch in about one month. The main hull is sitting up on the trailer and the floats will be attached tomorrow, all chain plates, cleats etc are fitted. The inside is painted and the cushions have been made. I have had a Tornado mainsail cut down and reef points added and will shorten the mast and paint it. Hope to have many photos and videos available soon.
    Ray Kendrick
    Team scarab
     
  9. murban
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    murban New Member

    Scarab

    Hello Ray,

    I have just received study plans for Scarab 16, I willl also order study plans for Scarab 18. In the meantime a have also contacted engineering shop nearby and they said that there will be no problem with cutting parts for folding mechanisem.

    By the way I really like the design of Scarab tris. ;)
     
  10. luckystrike
    Joined: Feb 2010
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    luckystrike Power Kraut

    Murban: Then you should go with the scarab trimaran. They have serious advantages over the open deck boats. It's a good thing to have a dry bunk and dry stored clothes after a wet day on the water. If you can handle the work and cost consider to build the 650. Looking after the design it offers a lot more possibilities for serious cruising as well as racing.

    Ray, perhaps it's a good idea to offer a alternative version with the old tube and seastay beams as a cost and time effective alternative to the folding boats. Builders will save a lot of work and have the possibilities to "recycle" broken aluminium masts which costs mostly a sixpack of beer. Following my experiences most folding tri's stay in their sailing mode all the time if they are in the water.

    Grrreetings from the North Sea Coast, Michel
     
  11. oldsailor7
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    oldsailor7 Senior Member

     
  12. trokril
    Joined: Jun 2010
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    trokril New Member

    Think 3 times before starting in your garage....

    And, you do not need to go far.... and do some seatrials.
    Check it out:http://www.trokril.com
    Please contact me if you need some more info.
     
  13. idkfa
    Joined: Sep 2005
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    idkfa Senior Member

    TROKRIL,

    where is the centerboard positioned, in the cockpit or cabin? I don't see the top access of it, tks.
     
  14. trokril
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    trokril New Member

    Hi there,
    it is positioned in the cabin, aft from the mast support.
    Liftable through the companion-way.
    BR
     

  15. rayaldridge
    Joined: Jun 2006
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    rayaldridge Senior Member

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