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Pro 60% rule?

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  • Pro 60% rule?

    Explain the 60% rule for sponson length relative to hull length and how is it measured, where is hull length measured from too?

    Why was the rule originally established?

    Why is there a present proposal to eliminate it?

    Thanks
    "Keep Move'n" life is catching up!
    No man's life, liberty or property are safe while the legislature is in session.

  • #2
    Originally posted by ZUL8TR View Post
    Explain the 60% rule for sponson length relative to hull length and how is it measured, where is hull length measured from too?

    Why was the rule originally established?

    Why is there a present proposal to eliminate it?

    Thanks
    The sponson is to be measured from the overall length of the boat.
    Several years ago when capsulated pro rigs showed up the commission felt tunnel boats and hydroplanes should not run together..many still feel this way

    Some racers and builders wish to experiment with boat design..
    It will be interesting to see what developes

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