build a cat

Discussion in 'Multihulls' started by mike harriman, May 31, 2011.

  1. mike harriman
    Joined: May 2011
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    Location: ont canada

    mike harriman mikey 21

    Hi there. I would like to know where I can get a 40 to 50 foot alum catamaran cruiser built, or would it be cheaper to get a used one.
  2. CatBuilder

    CatBuilder Previous Member

    It will always be cheaper to get a used one.
  3. Aharon
    Joined: May 2011
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    Aharon Junior Member

    I thought "build a cat" would involve more than "what is cheaper: to BUY a new or a used one".
    <edit: "to get a cat built" - Mike, I got you wrong. My bad, ok?
    Last edited: Jun 2, 2011
  4. sabahcat
    Joined: Dec 2008
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    Location: australia

    sabahcat Senior Member

    Lots of places

    Click >>>>> aluminium boatbuilders
  5. Nurb
    Joined: Jan 2011
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    Nurb Junior Member

    Start by making a list of the features you require.
    Then prioritize those which are most important.
    Then see how well existing boats fit your list of requirements or if a custom build is warranted.
  6. CatBuilder

    CatBuilder Previous Member

    My apologies, Mike. I mis-posted.

    I was not thinking when posting. For most boats, it is less expensive to buy used than to build. This is not always the case for catamarans. If you build the boat yourself, it is often less expensive than used. However, this is uniquely a function of the demand for used catamarans.
  7. CatBuilder

    CatBuilder Previous Member

    You would have to build it yourself though. Labor costs to hire the build out make it more expensive than used.
  8. simon
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    simon Senior Member

  9. cavalier mk2
    Joined: Mar 2010
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    Location: Pacific NW North America

    cavalier mk2 Senior Member

    Barry Choy of Chow design has worked with a yard in Washington State for a aluminum cat. You might contact him for details.
  10. mike harriman
    Joined: May 2011
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    Location: ont canada

    mike harriman mikey 21

    My apologies for not being more specific. I am thinking of a sailing catamaran 40feet or bigger. depending on cost. I would like alum. Something that i can live aboard.
  11. keysdisease
    Joined: Mar 2006
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    keysdisease Senior Member

    While there are available cats out there 40'+ in alum, I believe you will find most in fiberglass or cold molded. If your really set on alum you will be severely limiting the field of potential boats, many of them quite excellent vessels.The range of what is available in Catamarans is very wide and varied, from big heavy boats with lots of comforts to more spartan speedsters and everything in between.

    Live aboard?

    how many souls
    what level of comfort
    what range is necessary? coastal, long ocean passages, etc
    will there be "home" waters?

    and I'm curious, why alum ?


  12. Sand crab
    Joined: Feb 2011
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    Sand crab Junior Member

    Yes, why aluminum?

    Gregor Tarjans excellent book Catamarans The Complete Guide For Cruising Sailors (page 157) states that Aluminum cats under 50' will be heavier than a similar composite vessel. This is because of the thickness of the metal plates required. Apparantly you can't use thinner plates. So, why aluminum? Please don't tell me you don't care about weight. BOB
    PS. Tarjan is a naval engineer specializing in cats and knows way more than you or I will ever know about this.
  13. Mark Cat
    Joined: Jun 2011
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    Mark Cat Senior Member

    Before selecting a design you have to determine the vessels purpose and area of operation.

    Cruising is too broad a term.

    Many good posts pertaining to material choice relative to size.

    The last Aluminum sailing Catamaran for private ownership I worked was a 65 ft vessel. I did two mock ups, the first was circumnavigation, the second was circumnavigation with high latitude capability, meaning operation in freezing conditions, and recovery from dead boat emergencies in very cold waters.

    The dangers to the boat/rig, in terms of loads, must be considered. Also, de-icing procedures, and enclosed bridge visibility and operation. Even with all the advanced design the vessel was not design for sea ice operation. It was designed to operate in icy waters under light conditions, and had provisions like skeg rudder/keel and ice skirts to protect the props and rudders.

    The goal was to go around the ice, and not through it.

    The point being, that even the same exact boat hull design, size and rig layout required two very different equipment lists and capabilities between the two versions I presented.

    Last edited: Jun 14, 2011

  14. Corley
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    Corley epoxy coated

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