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  • #13610
    mike braund
    Participant
      @mikebraund92710

      Hi

      Can anybody help ,just built a Pilot 70 with displaced hull, installed single electric motor which appears to give it plenty of thrust  , my problem is that the bow on full power seems to lift up thus making  the stern very low low in the water. Is there any modifications I can make to correct this  :-   Trim tabs etc

      Cheers

      Mike

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      #13613
      Paul T
      Participant
        @pault84577

        Hi Mike

        Trim tabs would work, you could also try moving the boats centre of gravity forward slightly by shifting the battery pack, or as a last resort don’t use so much forward speed as the motor might be oversized for the model.

        Hope this is of some help

        Paul

        #13625
        ashley needham
        Participant
          @ashleyneedham69188

          Mike. Can I just add a cautionary tale here….I built an "Island" class fishery patrol vessel years ago, basically a north sea trawler displacement hull, and when i was experimenting with motors I put in  a whopping great torpedo 800 or something… and the bow wave it created you wouldnt belive, and the stern was actually below the level of the pond ! its massive forward speed was the only thing keeping the oggie out of the hull (but it was great fun!). The point of this dire tale is..displacement hulls have a designed top speed at which they are comfortable with, more power than that designed just makes the stern dig in, semi-displacement hulls will go that much faster, and MAY take more power as a model .As an aside, I noticed the other day that my modern HMS Manchester remains level from rest to max..the bow does not rise to any extent, but its a warship of course, long`n`thin. .  Ashley

          #13650
          mike braund
          Participant
            @mikebraund92710

            Hi

            Thanks for the tips I will certainly try the options, will let you know how it goes.

            Thanks

            Mike

            #8313
            mike braund
            Participant
              @mikebraund92710
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