Which is better: Propeller vs. Paddle

Discussion in 'Props' started by TurtleIndia, Mar 24, 2018.

  1. TurtleIndia
    Joined: Mar 2018
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    Location: India

    TurtleIndia New Member

    In terms of speed, efficiency and stability which will be better option to use as impeller: a propeller or a paddle.

    I will use it for a small boat with capacity ~20 people, therefore rough gross weight would be around 2.5 tons.

    It will very helpful if someone can share any research paper comparing both of them.

    EDIT:

    I am thinking of this kind of design using paddle/fins.

    boat-fin.jpg
     
    Last edited: Mar 24, 2018
  2. TeddyDiver
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    TeddyDiver Gollywobbler

    A paddle or a paddle wheel? A paddle can be as efficient as a propeller but a paddle wheel not even close..
     
  3. DCockey
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    DCockey Senior Member

    Do you have any data on efficiency of paddle wheels?
     
  4. TurtleIndia
    Joined: Mar 2018
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    TurtleIndia New Member

    boat-fin.jpg

    Actually I was thinking of this kind of design. Using a conveyor belt having fins driven by motor on one side. The fins here work similar to paddle, that's why I asked.

    I will keep two of these drives mounted below the boat. Only the lower half will be submerged in water.
     
  5. TeddyDiver
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    TeddyDiver Gollywobbler

    It was 170 years ago when that was settled. But you can find the data in fluid dynamics literature.
     
  6. rwatson
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    rwatson Senior Member


  7. TurtleIndia
    Joined: Mar 2018
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    Location: India

    TurtleIndia New Member

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