LVL Crossbeams

Discussion in 'Multihulls' started by goodwilltoall, May 20, 2018.

  1. UpOnStands
    Joined: Nov 2015
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    Location: Sydney

    UpOnStands Senior Member

    But but, the fillets are so pretty. So round.
    To eliminate one extra step the structure gets eff'd up.
     
  2. fallguy
    Joined: Dec 2016
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    Location: usa

    fallguy Senior Member

    This is a remodel of a prior finished boat and KH himself has commented that he is not involved in the mods. This was a finished boat. And that beam was once across the opens.

    Why anyone would cut across the aft beam is ?

    And KH himself said the not transoms will likely fail first.

    Since we are beating a dead horse, I figured I'd liven it up.

    I can't understand his purpose for doing it other than access to the cockpit, but that would need to be from the side. So he wrecked the boat to save steps.
     
  3. trip the light fandango
    Joined: Apr 2018
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    Location: Rhyll Phillip Island Victoria Australia

    trip the light fandango Junior Member

    It could be re enforced in its new format. Maybe waiting to see whether the cracks start to appear is enough, if it is structurally unsound it will flex when under way you'd reckon.
     
  4. UpOnStands
    Joined: Nov 2015
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    Location: Sydney

    UpOnStands Senior Member

    How to reinforce it?
    That hatch would have to be removed and the space filled in and then add a new hanging bulkhead fwd of that to pickup the fwd face of the transom.
    Etc Etc. But everything would have to opened up to ensure load transfer is not across some air gap covered with a fillet.
     
  5. trip the light fandango
    Joined: Apr 2018
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    Location: Rhyll Phillip Island Victoria Australia

    trip the light fandango Junior Member

    eek the horse blinked..I was thinking an angle plate[ally] or strap[stain] with re enforced mounting points in the hulls, we need to get in there and have a look..ha , cheers
     
  6. UpOnStands
    Joined: Nov 2015
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    UpOnStands Senior Member

    Get a large enough cattle prod and even a dead horse will dance. :p
     
  7. redreuben
    Joined: Jan 2009
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    Location: Beaconsfield Western Australia

    redreuben redreuben

    With the hatch opening underneath it’s pretty much “snap on dotted line”
    What’s really bugging me is he can afford to destroy a boat I can only dream of.
    Such is life, the politics of envy is pointless.
    Hopefully it’s a dock queen and nobody dies.
     
  8. UpOnStands
    Joined: Nov 2015
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    UpOnStands Senior Member

    By the time it is all faired and painted it might fool any number of people getting into boats for the first time.
    Should be some way to prevent its sale? What say the community?
     
  9. trip the light fandango
    Joined: Apr 2018
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    Location: Rhyll Phillip Island Victoria Australia

    trip the light fandango Junior Member

    ..Well the problem has been publicized now[fair enough], due diligence , then any craft that pricey gets [ unless their mad]an automatic survey. the builder has already signalled his thoughts, it's pretty covered.
     
  10. dsigned
    Joined: Aug 2017
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    Location: United States

    dsigned O.R.C. Hunter

    I think the thing that's being overlooked is that LVL could be cut into a space frame shape, likely without sacrificing much strength, whereas a solid piece of wood is going to be sensitive to the grain direction in a much more significant way.
     

  11. redreuben
    Joined: Jan 2009
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    Location: Beaconsfield Western Australia

    redreuben redreuben

    Im thinking there are several lighter weight ways to use lvl timber and I’m assuming we are talking about laminated timber where all the grain is in the same direction.
    Use the lvl’s top and bottom and box in the sides with ply to create a box shaped beam. Useful for main beam under mast main sheet,or similar
    Or, use lvl’s top and bottom with one central ply web to create an “I” beam. Could be used for lighter duties such as the ends or as part of the bridgedeck structure.
    Solid lvl is heavy and wasteful.
     
    fallguy likes this.
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