How do you find the waterline? help

Discussion in 'Stability' started by evilpriest, Jul 15, 2008.

  1. evilpriest
    Joined: Jun 2008
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    Location: New Zealand

    evilpriest Junior Member

    How do you calculate the waterline on a hull? recently bought an older boat and currently restoring it without any plans, is there an easy way of finding it? And what weight would u suggest a 16ft wooden hull should be approx? cheers.
  2. boatracer357
    Joined: Jul 2008
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    Location: maryland

    boatracer357 New Member

    It doesn't have to be exact. You're better off to be a little high than low. I always just used a string. start from the back and work up until the string touches where the side meets the bottom of the boat. Secure this and then run it up to the bow. You can pop a string or place black tape along the string line.
  3. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    Without going through a handful of calculations, concerning hull volume and weight distribution, you have little choice but to launch the boat and see where she rides. The plans would have this information for you, but without, you're going to have to do it the hard way.

    Make sure you launch and load the boat as it would be used, so you get an accurate picture of the waterline. Paint the boot stripe about 2" (okay, this depends on the size of the boat) above the actual LWL.
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