Rudder propeller drives?

Discussion in 'Surface Drives' started by OCB, Sep 2, 2016.

  1. OCB
    Joined: Dec 2015
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    OCB Junior Member

    Test boat #1

    I have a 26' American offshore Teauge 900. It has a XR Bravo drive.
     
  2. Alumination
    Joined: Oct 2013
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    Location: Knoxville, Tennessee

    Alumination Junior Member

    Sounds like you just need to get the center of the prop shaft located about 2" above the bottom of the hull and you will have both the benefits of a surface piercing propeller and the control of a fully submersed stern drive.

    You will have to arrange for raw cooling water pick up if it is now located above the waters surface.
    Propeller selection will also be important.
     
  3. Rik
    Joined: Dec 2007
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    Rik Senior Member

    The 26' AO is a splash of a 25' Talon. The center pod is 3" lower than the outer sponsons. These run really well with the Arnesons.
     
  4. OCB
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    OCB Junior Member

    Usable Input

    I will print a 3 D model of my boat, then I will try it on a model first,

    Thank you,
    OCB
     
  5. OCB
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    OCB Junior Member

    Best hull design for testing SD designs

    If you had any hull in the world, what one is best for this type of testing. Do you think this hull design and a propeller shaft 2" about the hull will be a good place to start test?

    Thank you,
    OCB
     
  6. Alumination
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    Alumination Junior Member

    If you just want to experiment then I'd find a used aluminum jon boat of the flat bottom, square bow design and go from there.

    Somethin' like this:

    [​IMG]
     
  7. OCB
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    OCB Junior Member

    Thank you, I will get one this weekend!

    OCB
     
  8. Irie
    Joined: Jul 2016
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    Irie Junior Member

    IMG_20161010_231452.jpg

    IMG_20161013_193623.jpg

    My steerable, trimable, sub/surface drive resides in a 12' aluminum semi-v. Its been an enjoyable project.
     
  9. tom kane
    Joined: Nov 2003
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    tom kane Senior Member

    Now there is a smart guy.. enjoying his boating and being innovative.
     
  10. OCB
    Joined: Dec 2015
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    OCB Junior Member

    Steerable, trimable, sub/surface drive input

    Thank you very much for posting your project. That is very close to what i want to try as well. I knew someone must have done this before:idea:
    Can you share (on or off line) the power plant, U joints, shaft, propeller size pro's and cons you have learned for your project? I need to get a base line to start my project.

    OCB
     
  11. OCB
    Joined: Dec 2015
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    OCB Junior Member

    Brainstorming only works with like minded people:idea:

    Thank you for your help and ideas!

    OCB
     
  12. Irie
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    Irie Junior Member

    Thanks Tom, the information you have made available was incredibly helpful.

    OCB, I would be happy to share my project. I'll start a thread about it this evening.
     
  13. OCB
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    OCB Junior Member

  14. tom kane
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    tom kane Senior Member


  15. ChrisN67
    Joined: Jan 2008
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    ChrisN67 Senior Member

    Gonzo, I have never witnessed you pull a Kane. Your comment about the stern drive was applicable. A pod has more azimuth travel but essentially the same effect.

    I have rudders behind my props and the turning performance over 40 kts is less than 4. They have a thin cord and are designed to stall at high speed high angle to not stress the drive structure or the rudder clevis.
     

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