Dorado 30 High speed stability

Discussion in 'Powerboats' started by Austin, Apr 24, 2020.

  1. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    I can't comment much more, I'd like to see the lines plan of the boat, but that won't be available, boats can look as if they are a warped plane bottom, but that one isn't, strictly speaking. I think your weight is too far aft, and the boat is riding mainly on that curved bottom well aft, acting like a "spoon" bow, which are notorious for wandering, add that to a long pod and two legs taking the CLR further aft, you have a steering effect. One possibility, would be to deepen your centre skeg, maximum at around a third of the way forward from the stern, that will move the CLR forward a bit, but not become an issue to make the boat broach in following seas. The problem there, would likely be with getting the boat on and off the trailer.
     
    Last edited: Apr 27, 2020
  2. Austin
    Joined: Apr 2020
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    Location: FL

    Austin Junior Member

    I appreciate all the help!
    Going to try moving some weight forward and raising the engines to start.
     
  3. Mr Efficiency
    Joined: Oct 2010
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    Mr Efficiency Senior Member

    That's probably a good start, as it doesn't involve huge difficulty. I think those short videos you posted helped expand the picture of what is going on.
     
  4. Alexander Peter Bromley
    Joined: Apr 2020
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    Location: South Africa

    Alexander Peter Bromley Junior Member

    Did you come right with shifting your onboard weights more forward?

    I would have also said the cheapest solution would be to shift weight forward so your hull is riding on the sharper end of your V.
     

  5. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Is it a distortion on the photo, or are those trim tabs bent into a curved surface?
     
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