predict propeller

Discussion in 'Props' started by heru yudha, Apr 27, 2006.

  1. heru yudha
    Joined: Apr 2006
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    heru yudha Junior Member

    Any body can help me, how to predict and choose propeller for high speed craft. plz completely with the method if possible???:confused:
     
  2. RANCHI OTTO
    Joined: Apr 2005
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    Location: TRIESTE (ITALY)

    RANCHI OTTO Naval Architect

    Which kind of propulsion do you have plant?
    Piercing propeller or shaft prop.?
    Which speed?
     
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  3. kjell
    Joined: Aug 2005
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    kjell Senior Member

    Give me the following data and I will tell you the propeller you need.

    Engine HP ?
    Engine RPM ?
    GearBox Ratio ?
    Boat Speed ?
     
  4. heru yudha
    Joined: Apr 2006
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    heru yudha Junior Member

    power

    I have 2100 rpm,twin engine by each 800 hp,gear box 2.06 and I hope get 23 knot at service speed.
    thank before
     
  5. heru yudha
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    heru yudha Junior Member

    I use shaft prop by 23 knot at service speed,2x 800hp power,2100 rpm.Lwl:27.3m,Bwl:5.1m,Draft :1.1m
     
  6. kjell
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    kjell Senior Member

    This is my calculation using your information.
     

    Attached Files:

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  7. heru yudha
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    heru yudha Junior Member

    ok thank a lot Mr.Kjell
     
  8. heru yudha
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    heru yudha Junior Member

    Hi..everybody can help me plz...
    1)plz tell me how I can get tutorial to construct boat by laminating method??
    2)how I can get open water curve of propeller for design in high speed craft??
    ....thank before.....
     

  9. heru yudha
    Joined: Apr 2006
    Posts: 6
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Indonesia

    heru yudha Junior Member

    Hi..everybody can help me plz...
    1)plz tell me how I can get tutorial to construct boat by laminating method??
    2)how I can get open water curve of propeller for design in high speed craft and using high speed engine??
    ....thank before.....
     
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