Stability observation wind area

Discussion in 'Stability' started by VaurienH, Feb 6, 2015.

  1. VaurienH
    Joined: Oct 2012
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    Location: terschelling

    VaurienH New Member

    Last summer we had to transport a jack-up rig from asia to europe. I noticed that due to the large wind area (the leges were 160m high). We always had a bit of heal due to the wind. When the wind and waves increased the heel got bigger but it also seemed that the large wind area stabilised the rolling.

    In the Netherlands we fit small sails on little boats to stabilise them.
    http://goo.gl/jKrOuL

    Question:
    Would it have a positive effect to fit a sail on a merchant ship to decrease accelleration forces??
     
  2. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Steadying sails.
     
  3. Richard Woods
    Joined: Jun 2006
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    Location: UK, USA and Canada

    Richard Woods Woods Designs

    My brother in law was a chief engineer with Smit tugs. He once delivered a big rig across the Gulf of Mexico. He had the legs welded to the deck. In bad weather the legs started ripping the deck off as the boat rolled. Not sure how much steadying sails would have helped!

    I know car transporter ships can throttle down when in the trade winds as they become wind assisted

    RW
     

  4. Mr Efficiency
    Joined: Oct 2010
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    Location: Australia

    Mr Efficiency Senior Member

    Which would mean they are still "trade winds" ! :)
     
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