what's name of this construction?

Discussion in 'Boat Design' started by kalvens, Jul 30, 2013.

  1. kalvens
    Joined: Mar 2010
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    kalvens Junior Member

    Hello guys:

    there is a Ro-ro passenger,it has two propellers,the structure around the propeller is not casting parts,Part of the propeller shaft is located in the outer hull,Contain this part of the propeller shaft structure is called what?
     
  2. gonzo
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    gonzo Senior Member

    Do you have photos or diagrams?
     
  3. JSL
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    JSL Senior Member

    A wild guess but this sounds like a 'propeller shaft bossing'. Post a photo or sketch and someone can help.
     
    Last edited: Jul 30, 2013
  4. Mr Efficiency
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    Mr Efficiency Senior Member

  5. SamSam
    Joined: Feb 2005
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    SamSam Senior Member

    I think he's referring to something like this (but not on a submarine) where the prop shaft exits the hull with no struts, no shaft logs etc. I think he wants to know what the prop shaft supporting/bearing/water sealing apparatus would be called in a description on a plan of a ship.

    [​IMG]
     
  6. JSL
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    JSL Senior Member

    This was my interpretation of the Kalvens question. Years ago I was working in a shipyard on a 325' ro-ro ferry. I helped (briefly) the loftsman layout the plating rolling and forming templates for the shaft bossing.... quite a challenge.
     

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  7. SamSam
    Joined: Feb 2005
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    SamSam Senior Member

    You're right.

    http://www.ss-united-states.com/a1/cou-e1.html

     

  8. kalvens
    Joined: Mar 2010
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    kalvens Junior Member

    jsl: thank you for you raply, yeah~ it was this that i asked, quite right, it is shaft bossing.:D
     
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