double bottom inquiry

Discussion in 'Metal Boat Building' started by Brian.Lin, Oct 31, 2017.

  1. Brian.Lin
    Joined: Aug 2006
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    Location: TW

    Brian.Lin Junior Member

    I am trying to find some data of double bottom from small aluminum boat (Abt 20~40m)
    does any one can provide us some data such as mid ship. welding schedule...for reference.?
     
  2. TANSL
    Joined: Sep 2011
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    Location: Spain

    TANSL Senior Member

    Everything depends, as is logical, on the scantlings of the ship and the constructive solutions adopted. As an example of a 40' aluminum boat you can see the attached file.
     

    Attached Files:

  3. Brian.Lin
    Joined: Aug 2006
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    Location: TW

    Brian.Lin Junior Member

    Dear TANSL,

    thanks for your prompt reply.
    our biggest problem is we have no experience for the double bottom arrangement.
    and we have no reference data for the double bottom assemble. how to decide the double bottom assemble order?
     
  4. TANSL
    Joined: Sep 2011
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    Location: Spain

    TANSL Senior Member

    I attached some drawings that I hope will help you but if you give me more details of your boat I might be able to give you some more specific advice for it.
     

    Attached Files:

  5. Brian.Lin
    Joined: Aug 2006
    Posts: 56
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    Location: TW

    Brian.Lin Junior Member

    Dear TANSL,

    thx for your helpful drawing.
    if the vessel equip inboard diesel engine with FPP, how to arrange the double bottom in engine room/steering room.
    another , for the waterjet propulsion, how to arrange double bottom?
     
  6. TANSL
    Joined: Sep 2011
    Posts: 6,625
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    Location: Spain

    TANSL Senior Member

    If you show me a GA of your ship, maybe I could advise you better. One possibility is that the engine room does not have a double bottom, or that it is higher than the rest of the ship.
    Send me a PM with your email to exchange information, if you want to maintain the confidentiality of your project.
     

  7. Ad Hoc
    Joined: Oct 2008
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    Location: Japan

    Ad Hoc Naval Architect

    If you know how to do a FO tank, it is no different.
     
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