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tighter turn

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tighter turn

Home › Forums › Scratch build › tighter turn

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  • 25 April 2013 at 20:45 #40472
    wayne quigley
    Participant
      @waynequigley28540

      Hi gents

      had boat on the pond sunday loverly day, but the turning circle leaves a lot to be desired. at the moment I have a servo horn with the rod on the far end,like wise the rudder is connected to the far end of tiller arm, same distance from pivit point.if I was to move the conection at the rudder end nearer the pivet point ,would this give move turn on the rudder.

      I think it will any advice

      Wayne

      25 April 2013 at 20:45 #6872
      wayne quigley
      Participant
        @waynequigley28540
        25 April 2013 at 22:17 #40473
        Colin Bishop
        Moderator
          @colinbishop34627

          It might, but once the rudder goes beyond around 30 degrees from amidships it will tend to just increase drag rather than improve the turning circle.

          If you have a twin screw boat then fitting a mixer will improve things.

          Colin

          26 April 2013 at 06:30 #40475
          ashley needham
          Participant
            @ashleyneedham69188

            Wayne. At the risk of stating the obvious….fit a bigger rudder! make it deeper if you cant make it longer.

            Once the ruidder post is in place on the hull there is not much you can do about turning performance really other than, as Colin says (if it is a twin screw boat ) use differential prop control.

            You could extend the rudder a bit forward of the pivot point possibly?

            Is your rudder directly behind the prop?

            Ashley

            26 April 2013 at 06:47 #40476
            Paul T
            Participant
              @pault84577

              Hello Wayne

              All that I can add to the excellent advice is either fit a kortz nozzle or one of Bob Ables Becker style rudders.

              Paul

              26 April 2013 at 07:45 #40477
              Bob Abell 2
              Participant
                @bobabell2

                Wayne

                Having read your post again……..Moving the rudder linkage closer to the pivot point, will increase the rudder movement

                You could also fit a longer servo arm…..and get the same effect

                A photo of your mechanism would be helpful

                Bob

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