rudder/prop system question

Discussion in 'Boat Design' started by boredman1, Nov 26, 2014.

  1. boredman1
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    boredman1 Junior Member

    would 2 rudders in between 3 counter rotating props be a good set up?
     
  2. gonzo
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    gonzo Senior Member

    Not really. You would be better off with two on the wash of the two outboard ones.
     
  3. boredman1
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    boredman1 Junior Member

    not rlly sure what you mean, im stuck on 3 engines 3 props
     
  4. gonzo
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    gonzo Senior Member

    Three propellers are installed one in the center and two outboard.
     

  5. daiquiri
    Joined: May 2004
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    daiquiri Engineering and Design

    For a good rudder responsiveness at low boat speeds, you need them to work inside the propeller wake, where the water flows at higher speed. So, as Gonzo said, it is desirable to place rudders behind the prop. Whether there will be 2 (leaving one prop without) or 3 rudders, that's your choice.
    Cheers
     
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