Composite Lapstrake?

Discussion in 'Materials' started by Schoonner, Dec 20, 2011.

  1. Schoonner
    Joined: Nov 2011
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    Location: Washington State USA

    Schoonner Senior Member

    Does anyone know if it would make sense to make a lapstrake style composite hull and make composite planks over a thin plywood mold with plaster of Paris over the top of it? (Making a model)

    How can I account for the springback of a piece of oak after it cools? Does thickness matter? Is there a formula or is that too complicated?
  2. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    There are thousands of lapstrake composite boats in use.
    The springback is something you experiment with until you get a good eye for it.
    Thickness does matter.
  3. messabout
    Joined: Jan 2006
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    Location: Lakeland Fl USA

    messabout Senior Member

    The old time MFG boats of the 50s and 60s were lapstrake composite types. They were good rugged boats but they were disappointingly heavy. The problems lie in the fact that the laps are not condusive to the use of woven fabrics, so they used all chopped strand. That usually meant that the finished product was resin rich. Thus they had to use thicker layups which made 'em heavy.
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