Building a “C-Class” Catamaran

Discussion in 'Multihulls' started by Nordschleife, May 23, 2021.

  1. Nordschleife
    Joined: Jan 2020
    Posts: 12
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    Location: NY

    Nordschleife Junior Member

    Recently I came across the Lindahl Composites page documenting the build of their LR6 A-class catamaran.
    LR 6 https://lindahlcompositedesign.weebly.com/lr-6.html
    I’d like to use this same method to build a larger, “C-Class” catamaran. Why the quotations? Well, I can say with almost absolute certainty that I will never race this boat, and so it’s rigid conformation to the C-Class rulebook or even competitiveness compared to those professionally designed boats, is not of concern to me.

    I’d like the boat to be double-handed, be able to fly around a racecourse, and equipped with a wingsail. Foils will ideally be able to deploy and retract based on the tack the boat is on, but this is not a necessity.

    Any suggested reading or suggestions are more than welcome.
     
  2. wet feet
    Joined: Nov 2004
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    Location: East Anglia,England

    wet feet Senior Member

    Interesting idea,but may I ask if you have ever built a carbon boat before?If the answer is in the negative then I suggest you begin with a small and simple rowing boat to gain some familiarity with the techniques involved.If it succeeds,you will be much better prepared to take on the task of a considerably more complicated and expensive project.If it fails,you won't have lost too much.
     
  3. Erwan
    Joined: Oct 2005
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    Location: France

    Erwan Senior Member

    The cost effective solution would be to buy a plateform with consistent track-record:
    And you are a lucky guy as this plateform exist:
    2016 - FOILER - Easy to fly - Guillaume Verdier

    If at first glance it looks more expensive than your DIY boat, even after sailing a few years it will keep some market value compared to your DIY vessel.

    Regarding the wingsail, exept if it is for a research program, it will be a garbage, as the wing sail will be useful below 6 knts TWS, above , a teardrop mast with full batten sail will make it and will be much cheaper, not to mention capzise consequences with a wingsail, and related insurance costs.

    If addict to DIY, you should consider an A-Cat first, then a B-Cat to sail with girl friend, and later a C-Cat if not yet discouraged.

    Cheers
     
  4. Nordschleife
    Joined: Jan 2020
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    Location: NY

    Nordschleife Junior Member

    I have built carbon Marblehead 50/800s before. And I do own a DNA A-class - I just want to build a boat :D.
     
  5. upchurchmr
    Joined: Feb 2011
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    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    Good luck to you.
    I no longer know where to find build descriptions for previous c-class boats.
    Perhaps searching on the boat names, like the Patient Lady series.

    The Gougeon Brothers book on wooden boat construction had a section on a "C-class" trimaran, although designs have moved on for a long time.
     
  6. oldmulti
    Joined: May 2019
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    Location: australia

    oldmulti Senior Member


  7. upchurchmr
    Joined: Feb 2011
    Posts: 3,147
    Likes: 183, Points: 63, Legacy Rep: 579
    Location: Ft. Worth, Tx, USA

    upchurchmr Senior Member

    perhaps you could point out which pages have actual C-class boats.
    With 120 pages and most of them cruisers it might be hard to find actual C-class boats.

    25' x 14' x 300sq ft sail area with 2 crew. No cabin of course.
     
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