Monohull dinghy with amas above waterline just for stability

Discussion in 'Sailboats' started by Kuter, Mar 30, 2025.

  1. David Cooper
    Joined: Jan 2015
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    Location: Scotland

    David Cooper Senior Member

    But has anyone made one that can rotate upwards 60 to 70 degrees with increasing resistance the further it tips? That would result in a boat that's very hard to capsize. A little bit of flex(ibility) is not going to do the same job.
     
  2. HelmutSheina
    Joined: Dec 2025
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    Location: New South Wales

    HelmutSheina Senior Member

    Obviously most innovations of this nature filter down from high level racing, but I have not seen a system such as you describe David, not that I have looked for one as my needs are more sedate (age related).

    Are you aware of such a system as you describe? If not perhaps a separate thread to discuss the merit and design of your proposal?

    It could be a game changer for cruising tris, and perhaps as a training wheel system on cats, though my thoughts tend toward an affordable mainsheet safety release which I will start testing on once I clear a health hurdle.
     
  3. David Cooper
    Joined: Jan 2015
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    David Cooper Senior Member

    I don't know of one, but I was only imagining it being used as training dinghies where the aim is to try and keep the boat upright, though it could also be used for safer cruising in dinghies, making it less likely that you'd take a dip. For large trimarans you don't want the ama to swing up as it wouldn't keep the boat level enough for efficient or comfortable sailing, and although there might be a gain in having it give way and rise under extreme force, that would be at a lot of cost to avoid incidents that experts would see coming and avoid.
     
  4. Paul Scott
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    Paul Scott Senior Member

  5. Paul Scott
    Joined: Sep 2004
    Posts: 641
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    Location: San Juan Island, Washington

    Paul Scott Senior Member

    complexity!? We had an L7 tri slider, and it was not easy to slide in practice. It seemed easy until you actually had to do it.
     

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