Propulsion for New boat

Discussion in 'Props' started by tonipu, Jan 20, 2021.

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  1. tonipu
    Joined: Dec 2014
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    tonipu Senior Member

    Hi
    I need advice for my New boat propulsion, calculation in picture, what is your opinions
     
    tonipu, Jan 20, 2021
    #1
  2. tonipu
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    tonipu Senior Member

    My calculation and gearbox selection
     

    Attached Files:

    tonipu, Jan 20, 2021
    #2
  3. tonipu
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    tonipu Senior Member

    Engines iveco Nef370 370hp 2800rpm
     
    tonipu, Jan 20, 2021
    #3
  4. tonipu
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    tonipu Senior Member

    Calculation
     

    Attached Files:

    tonipu, Jan 20, 2021
    #4
  5. Adler
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    Adler Senior Member

    Adler, Jan 23, 2021
    #5
  6. tonipu
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    tonipu Senior Member

    last picture is redable
     
    tonipu, Jan 23, 2021
    #6
  7. tonipu
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    tonipu Senior Member

    Beter image, gearbox 1.75
    22x31 dar. 85 4blade
     

    Attached Files:

    tonipu, Jan 23, 2021
    #7
  8. Adler
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    Adler Senior Member

    ....and what was your input data set to extract these results ?
     
    Adler, Jan 23, 2021
    #8
  9. tonipu
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    tonipu Senior Member

    5000kg, i also try 6000kg it was 1 inch les pitch
    Lwl 10meter
     

    Attached Files:

    tonipu, Jan 23, 2021
    #9
  10. Adler
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    Adler Senior Member

    Gawn_75.JPG Gawn_75_Size.JPG Gawn_85_Size.JPG Gawn_85.JPG
     
    Adler, Jan 23, 2021
    #10
  11. tonipu
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    tonipu Senior Member

    What you thing about my gear ratio selection
     
    tonipu, Jan 23, 2021
    #11
  12. Adler
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    Adler Senior Member

    See also that ... Gawn_75_Cup.JPG Gawn_75_Size_Cup.JPG
     
    Adler, Jan 23, 2021
    #12
  13. Adler
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    Adler Senior Member

    ...and regarding tha ratio take a note on that ... Gawn_75_GearRatio_2.JPG Gawn_75_Size_GearRatio_2.JPG
     
    Adler, Jan 23, 2021
    #13
  14. Adler
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    Adler Senior Member

    ...for your records , the Input data set
     

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    Adler, Jan 23, 2021
    #14

  16. tonipu
    Joined: Dec 2014
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    tonipu Senior Member

    What you thing about my gear ratio selection, is beter 1.5 or 2
     
    tonipu, Jan 23, 2021
    #15
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