Iso 12217-1 Swamp Test and reserve of buoyancy

Discussion in 'Stability' started by xdeeperbluex, May 3, 2020.

  1. xdeeperbluex
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    xdeeperbluex Junior Member

  2. Ad Hoc
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    Ad Hoc Naval Architect

    upload_2020-5-4_10-3-47.png
     
  3. Mr Efficiency
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    Mr Efficiency Senior Member

    What is the concern, meeting some standard for commercial use, or just worried about safety for private use ? My sole concern if not needing to comply with some technical standard, would be that both hulls be packed with buoyancy material, so that in the event of the hull(s) breached, the thing does not sink below the self-draining floor level, in which case the freeing ports might allow the boat to take on water, and sink, or capsize, due to free water sloshing around your feet.
     
  4. xdeeperbluex
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    xdeeperbluex Junior Member

    Thanks for reply .
    Please could you clarify , It is a recessed boat so compliant with fully decked boat right?
    image https://ibb.co/x8KpmMD

    Concerning the reserve of buoyancy i don't like so much the expanded foam due water absorption could you suggest some foam ( only expanded no solid for extrusion ) different then PU ? I prefer so much structural air tank but as per ISO i need some air inlet valve to test the pressure decay and also several " Do not Puncture " words printed all around the tanks...
     
  5. TANSL
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    TANSL Senior Member

    It´s not decked at all. You will also have to demonstrate that the emptying time of the shipped water does not exceed the maximum allowable.
     
  6. Ad Hoc
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    Ad Hoc Naval Architect

    Do you understand the difference between fully decked and recessed?
     

  7. xdeeperbluex
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    xdeeperbluex Junior Member

    Hi Ad Hoc thanks for reply , I believed to know well the difference between fully decked and recessed but please look my previous link .
    Fully decked :boat in which the horizontal projection of the sheerline area comprises any combination of quick-draining recesses complying with ISO 11812, and/or watertight recesses complying with ISO 11812 with a combined volume of less than LH BH FM /40 .
    Taking in consideration that I have a quick draining recessed deck with properly draining holes the boat can be considered fully decked for the previous ? I think yes though we think generally for fully decked a superstructure deck
     
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