canting rudder ?

Discussion in 'Sailboats' started by nota, Jul 3, 2019.

  1. nota
    Joined: Sep 2012
    Posts: 29
    Likes: 2, Points: 3, Legacy Rep: 24
    Location: miami

    nota Junior Member

    has anyone made a rudder that stays up right as a boat heels ?

    ie a turntable on the stern or other device ?

    powered by gravity or some motor or ?

    comments ?
     
  2. messabout
    Joined: Jan 2006
    Posts: 2,966
    Likes: 181, Points: 63, Legacy Rep: 1279
    Location: Lakeland Fl USA

    messabout Senior Member

    Inland Lakes scows are intended to sail in heeled attitude. They have twin rudders and centerboards that are canted. Some hot rod type larger boats also have twin canted rudders and some of them have a canting keel. I have not heard of a centrally located rudder that could be canted so as to respond to heel angle. Surely it has been tried. Maybe some of the other forum members know of such an innovation. The operative question would be: Is that ability even worth the complication?

    Sure enough a boat that is heeled will have the rudder affecting the lee bow immersion or weather bow immersion depending on which way the rudder is turned. That is the subject for some trigonometric analysis to determine how much influence the rudder tilt of a conventional boat would have on the trim of the boat.
     
  3. CT 249
    Joined: Dec 2004
    Posts: 1,701
    Likes: 78, Points: 48, Legacy Rep: 467
    Location: Sydney Australia

    CT 249 Senior Member

  4. nota
    Joined: Sep 2012
    Posts: 29
    Likes: 2, Points: 3, Legacy Rep: 24
    Location: miami

    nota Junior Member

    looks like thursdays child used ropes and a curved track lower point and braced upper pivot
    how did the rig do
    was that boat converted to doubles or just newer boats ?

    did not think I was first but had not seen one
     

  5. CT 249
    Joined: Dec 2004
    Posts: 1,701
    Likes: 78, Points: 48, Legacy Rep: 467
    Location: Sydney Australia

    CT 249 Senior Member

    More recent pics show the same rudder. She is a much narrower boat than the current Opens so may have no need for twin rudders.
     
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