Arowana 32" self righting hull

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  • Old School
    Senior Member
    • Aug 2017
    • 686

    #1

    Arowana 32" self righting hull

    I have purchased two of these hulls (one in my possession, one soon to be intransit) from an eBay seller "thebuild-rc". The build quality looks very good with an immaculate glossy white gelcoat finish, however, I am sure that achieving self righting capabilities will take a lot of experimenting in the bath tub.

    A quick check revealed the chamber leaks inside the hull (probably to be expected as I did intend beefing up the hull). Secondly, the chamber is extremely small occupying no more than about 750 cc. The Arowana 32 is well known for its stability when the hull is inverted in the water due its large flat deck, so I feel that additional lead weight will be needed to be added inside the float chamber towards the rear, plus biasing the battery to the left side.

    I had hoped being a production hull that the flood chamber volume had been sorted out but it seems that I need to do a lot of homework to eventually achieve a self righting hull. Fingers crossed that a new inner wall will not be needed closer to the keel centreline to gain additional volume.
  • rol243
    Fast Electric Addict!
    • Apr 2017
    • 1038

    #2
    sounds like a good size 4s class mono hull. any pics of this ?

    Comment

    • Old School
      Senior Member
      • Aug 2017
      • 686

      #3
      As requested
      Attached Files

      Comment

      • Old School
        Senior Member
        • Aug 2017
        • 686

        #4
        Also. Hull is 80 cm in length and 24.5 cm width.
        Attached Files
        Last edited by Old School; 02-06-2018, 03:40 AM.

        Comment

        • rol243
          Fast Electric Addict!
          • Apr 2017
          • 1038

          #5
          Thats not a bad looking mono hull atall. wounder if this seller has non self righting hulls available as well.

          Comment

          • Old School
            Senior Member
            • Aug 2017
            • 686

            #6
            This is his selection of hulls from his website -

            Comment

            • boatsrnew2me
              Senior Member
              • Oct 2016
              • 476

              #7
              i have eyes these hulls before as i love a self righter but i am not a builder . i wasnt aware they sell them on ebay .they do list almost ready to run ones but they are never in stock .
              volantex vector pro ,proboat veles 29 , traxxas spartan, hobbyking/tfl pursuit ,ft009 with rescue rigging

              Comment

              • Old School
                Senior Member
                • Aug 2017
                • 686

                #8
                Personally, given that my hull flood chamber leaks I would not trust buying an ATR model. I think that any hull will need rectification plus some fettling to get the hull to self right as the flood chamber is I believe too small a capacity.

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                • denboy01
                  Member
                  • Sep 2007
                  • 59

                  #9
                  Pursuit-inside.jpg

                  Photo shows a Pursuit hull setup for self righting

                  Comment

                  • martin
                    Fast Electric Addict!
                    • Aug 2010
                    • 2887

                    #10
                    The Arowana is the same hull bottom as the Pursuit, but with a different deck & hatch.

                    Comment

                    • rayray9
                      Steve Takes My Money
                      • Sep 2016
                      • 98

                      #11
                      denboy01, does that actually work on the Pursuit?

                      Comment

                      • denboy01
                        Member
                        • Sep 2007
                        • 59

                        #12
                        The boat in the photo has an almost full length flood chamber and 4oz lead at the c of g between the speedo and battery. With this setup the boat selfrights easily.
                        With heavier speedos and batteries the lead might not be required.
                        .

                        Comment

                        • denboy01
                          Member
                          • Sep 2007
                          • 59

                          #13
                          Youtube has a few examples of Pursuit hulls that self right

                          Comment

                          • rayray9
                            Steve Takes My Money
                            • Sep 2016
                            • 98

                            #14
                            Any pics of the flood chamber?

                            Comment

                            • denboy01
                              Member
                              • Sep 2007
                              • 59

                              #15
                              Hi Ray, i'll try and get some more pics on tomorrow

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