A possible down wind sail plan for a Rescue Boat

Discussion in 'Motorsailers' started by Chris71, Feb 15, 2020.

  1. fallguy
    Joined: Dec 2016
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    fallguy Senior Member

    I saw a website for osail, but they haven't updated in since 2012. Looked promising as a simple downwind device. They must have bombed.
     
  2. Chris71
    Joined: Feb 2020
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    Location: Australia

    Chris71 Junior Member

    its the idea, your a man of short sentances. ; ) Do you know where I could find the infor on the length/ angle needed. If this is the main issue Im guessing it wont be too hard to resolve. cheer
     
  3. Mr Efficiency
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    Mr Efficiency Senior Member

    You would need to extend the hull at least a couple of metres, by curving the keel line upwards from the transom and back, and the chines curving back toward the centreline, so instead of an abrupt termination, now have a gradual reduction in volumes, ending with less "suck" at the stern. That would be a fair job, and your boat will likely be too long for the trailer.
     
  4. Mr Efficiency
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    Mr Efficiency Senior Member

    Something like this...…...But you'd be better off selling it and buying a sailboat.
    IMG_0009.jpg
     
    Last edited: Feb 17, 2020

  5. sharpii2
    Joined: May 2004
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    sharpii2 Senior Member

    Extending it that far back may make it the most efficient. But perhaps a more abrupt ending, like, say 1.5 x the keel depth may make a considerable improvement.
     
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