Help bouncing at full throttle 30 inch cat

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  • razzle
    Member
    • Feb 2012
    • 46

    #16
    Yes I haven't tried that yet I will try that soon but also I was thinking the hull design has too much lift the bow lifts first then it starts bouncing then it blows over. The front of the tunnel seems to have steep airfoil shape to it more agressive than other cats I have seen, I might try a Air dam at the front of the tunnel...Checkout pictures?
    P1040160.JPGP1040161.JPGP1040164.JPG

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    • ozzie-crawl
      Fast Electric Addict!
      • Sep 2008
      • 2865

      #17
      Hey was thinking WA was in the U.S. Drop down into off topic section "skippies and kiwis" say gday to a few Aussies.

      By lifting the strut a bit should plant the hull a bit better. I had a similar hull. Same problem. Some cats get thinner towards the back some stay the same thickness. So different stut hieghts from what i have seen.
      If you angle the prop.down to much it can make it porpoise. Prop forces bow down cat then gets air under front lifts its nose like it should,prop tries to push
      Bow down again. And just keeps repeating.
      If that makes sense

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      • razzle
        Member
        • Feb 2012
        • 46

        #18
        Thanks Ozzie I will get some different Thickness blocks and set the strut on the blocks on a level table in increments so the strut stays level with the hull, I will start at maybe 5 mm and go up from there...Cheers!

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        • ozzie-crawl
          Fast Electric Addict!
          • Sep 2008
          • 2865

          #19
          Cool. No guarantee it will work but its a good starting point :-)

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          • ashcossie
            Junior Member
            • Apr 2012
            • 29

            #20
            could any one tell me what bit on the rear of boat is the trim and the strut parts sorry new to boats
            cheers

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