Mathematically-designed and CNC made surface-piercing propeller by McCauleyandson

Discussion in 'Surface Drives' started by sandhammaren05, Aug 5, 2020.

  1. sandhammaren05
    Joined: May 2009
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    Location: Texas & Austria

    sandhammaren05 Senior Member

    A first for our design. Chapter 5 in the book.
     

    Attached Files:

    DogCavalry and powerabout like this.
  2. DogCavalry
    Joined: Sep 2019
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    Location: Vancouver bc

    DogCavalry Soy Soylent Green: I can't believe it's not people

    What speed range for this specific prop?
     
  3. sandhammaren05
    Joined: May 2009
    Posts: 436
    Likes: 33, Points: 38, Legacy Rep: 138
    Location: Texas & Austria

    sandhammaren05 Senior Member

    It's made for 30-35 sec courses with sharp turns at both ends. Speeds
    are typically 60-65 mph @7000-7400 RPM with 1:1 gear ratio at the end of a straightaway.
     
  4. DogCavalry
    Joined: Sep 2019
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    Location: Vancouver bc

    DogCavalry Soy Soylent Green: I can't believe it's not people

    1:1 at the end? Different ratios through the corners?
     
  5. sandhammaren05
    Joined: May 2009
    Posts: 436
    Likes: 33, Points: 38, Legacy Rep: 138
    Location: Texas & Austria

    sandhammaren05 Senior Member

    It's made for 30-35 sec courses with sharp turns at both ends. Speeds
    are typically 60-65 mph @7000-7400 RPM, with 1:1 gear ratio, at the end of a straightaway.
     
  6. baeckmo
    Joined: Jun 2009
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    Location: Sweden

    baeckmo Hydrodynamics

    And what powers are we talking about?
     

  7. DogCavalry
    Joined: Sep 2019
    Posts: 2,594
    Likes: 1,290, Points: 113
    Location: Vancouver bc

    DogCavalry Soy Soylent Green: I can't believe it's not people

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