Paddle Wheel Diameter/Width

Discussion in 'Boat Design' started by PontoonBob, Mar 29, 2012.

  1. PontoonBob
    Joined: Mar 2012
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    PontoonBob New Member

    Is there a known ration between the Diameter and Width for a paddle wheel on a pontoon. I have found many sources indicating that the width should never be more than the the diameter. This will be on a 20 foot pontoon, speed is not an issue.

    Thanks,
    Bob
     
  2. Submarine Tom

    Submarine Tom Previous Member

    Have a look at side wheelers...

    -Tom
     
  3. PontoonBob
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    PontoonBob New Member

    Do you have a link?
     
  4. Submarine Tom

    Submarine Tom Previous Member

    Google

    -Tom

    P.S. If speed is not an issue then you don't need a paddle wheel...
     
  5. jehardiman
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    jehardiman Senior Member

    There is a whole section on paddle wheel design in Saunders, Hydrodynamics in Ship Design, Vol 2 Chapter 71.
     
  6. daiquiri
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    daiquiri Engineering and Design


  7. tinhorn
    Joined: Jan 2008
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    tinhorn Senior Member

    See page 277, below.

    I believe this spec may be for sidewheels (paddle width four times its height). Another specification calls for the less common sternwheel to be twice the width of a sidewheel, so eight times paddle height. I believe the reason for being so fussy over paddle size is to avoid getting too large a "bite" and thus slowing down the steam engines, which reduced their horsepower output.

    There's also a formula for calculating feathering paddle size based on the diameter of the wheel.
     

    Attached Files:

    Last edited: Mar 30, 2012
    1 person likes this.
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