Thickest Gravy for inclining test

Discussion in 'Stability' started by ymonk, Nov 25, 2018.

  1. ymonk
    Joined: Feb 2018
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    ymonk New Member

    What is the liquid that you use for your inclining tests oil trays ?
    Water ? Oil ? Gease ? Glue?
    Have you used any other viscous fluid which assists in fast settling of the pendulum bobs?
     
  2. Ad Hoc
    Joined: Oct 2008
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    Ad Hoc Naval Architect

    As thick as possible and make sure your plumb bob has vanes too.
     
  3. Ike
    Joined: Apr 2006
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    Ike Senior Member

    Back in the 70's when we did inclinings in the shipyard we used oil. I don't know the weight but it was pretty heavy stuff.
     
  4. Ad Hoc
    Joined: Oct 2008
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    Ad Hoc Naval Architect

    I always use the dirtiest sludge engine oil laying around in the yard i could find.
    Works a treat :D
     
  5. ymonk
    Joined: Feb 2018
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    ymonk New Member

    Vanes as you said are super important . without vanes it wont settle at all . Just a cylinder bob wont do .
     
  6. Tad
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    Tad Boat Designer

  7. CDBarry
    Joined: Nov 2002
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    CDBarry Senior Member

    Definitely dishwashing liquid. If you spill oil, the Chief Engineer will have a fit.
     

  8. CDBarry
    Joined: Nov 2002
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    CDBarry Senior Member

    As to vanes, I have used bobs made out of a couple of slotted brass plates that form a cross when linked together. You can store them in a nice cloth holder and look very cool when you take them out and assemble them.
     
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