Mini Transat help

Discussion in 'Boat Design' started by Andrewc42, Jun 8, 2010.

  1. Andrewc42
    Joined: Jun 2010
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    Location: Norhtshore Auckalnd, New Zealand

    Andrewc42 Junior Member

    Hi,

    I'm currently designing a Mini Transat which is going ok. Does anyone have any hull information or drawings they could spare me? As this would be a great help

    Cheers,

    Andrew
     
  2. luckystrike
    Joined: Feb 2010
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    Location: Germany

    luckystrike Power Kraut

    Hi, do you mean as a reference help for your design? Detailed drawings of competitive designs will not be available because they are secret. But you can learn a lot from photos or discriptions. To get some informations you should surf the net intensively and save all the informations you can get. What Do you want to learn about mini design? Hull lines? Balances? Structures? Class Rules?

    Grrreetings from the North Sea Coast, Michel
     
  3. Andrewc42
    Joined: Jun 2010
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    Location: Norhtshore Auckalnd, New Zealand

    Andrewc42 Junior Member

    Hi,

    I have looked at many Mini Transat website and they have been helpful... What I would really like to know is: What is the ideal Prismatic Coefficient for a Mini?

    I am modeling a mini up on Maxsurf at the moment, and it going well.

    cheers
     
  4. Raggi_Thor
    Joined: Jan 2004
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    Location: Trondheim, NORWAY

    Raggi_Thor Nav.arch/Designer/Builder

    0.58
    (just kidding ... :) )
     
  5. luckystrike
    Joined: Feb 2010
    Posts: 236
    Likes: 15, Points: 18, Legacy Rep: 92
    Location: Germany

    luckystrike Power Kraut

    Prismatic Coefficient

    I think in a boat half as wide as long the pc is not important anymore.

    Most mini's are drawn by following the "dynamic flow method". That means a mini is big windsurfboard with a round bottom to have a planing area up to 10° or 15° heeling (and then comes the chine).

    To face light weather and upwind sailing in displacement mode the mini's rely on a enormous sail area and stability (canting keel, waterballast), not on good underwater lines.

    Greetings from the North Sea Coast, Michel
     
  6. Andrewc42
    Joined: Jun 2010
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    Location: Norhtshore Auckalnd, New Zealand

    Andrewc42 Junior Member

    Thanks for that.

    Where would I be able to find information on the Dynamic flow method?

    Cheers, Andrew
     

  7. Raggi_Thor
    Joined: Jan 2004
    Posts: 2,457
    Likes: 64, Points: 0, Legacy Rep: 711
    Location: Trondheim, NORWAY

    Raggi_Thor Nav.arch/Designer/Builder

    Google...

    And you'll find a lot of tips.
    For example, http://www.vgyd.com/Mini.html

     
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