Carbon Fibre Pushrods

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  • hywel
    Lieutenant
    • Aug 2022
    • 65
    #1

    Carbon Fibre Pushrods

    I bought a bunch of 500mm carbon fiber rods to reinforce my hull, but then found 1000mm ones that will work much better.

    I figure I can use the short ones for the rudder/dive plane surfaces but what do y’all think of using hem for pushrods? They have a little flex so if things get jammed up they could be more forgiving than straight up brass rod, but…anyone used them like this though?

    Thoughts?

    cheers,

    - hywel
    Tags: None
    • redboat219
      Admiral
      • Dec 2008
      • 2749
      #2
      Say a small grit of sand got wedged between the hull and stern plane right after you commanded a dive. You pull back and nothing happens, the control rods just bowing everytime the servo moves. A rigid rod could transmit the power needed to dislodge the jam.
      Make it simple, make strong, make it work!

        Comment

        • SubDude
          Captain
          • Dec 2019
          • 803
          #3
          What diameter rods?

            Comment

            • Bob Gato
              Captain
              • Feb 2019
              • 831
              #4
              I would suggest tubes not rods-fill the tube with foam...VERY rigid. CF rods and tubes are pricey with min buy...

              I am now going with a Sullivan control cable in guide tube-(plastic in plastic with provision for a 2/56 ss treaded coupling rod to connect a Dubro plastic quick link) -No metal to metal/inexpensive/ readily available/ RC model aircraft proven/ no trapped air /flex if needed and no corrosion.

                Comment

                • hywel
                  Lieutenant
                  • Aug 2022
                  • 65
                  #5
                  Originally posted by SubDude
                  What diameter rods?
                  That would’ve been helpful to share right? 3mm

                    Comment

                    • hywel
                      Lieutenant
                      • Aug 2022
                      • 65
                      #6
                      Originally posted by redboat219
                      Say a small grit of sand got wedged between the hull and stern plane right after you commanded a dive. You pull back and nothing happens, the control rods just bowing everytime the servo moves. A rigid rod could transmit the power needed to dislodge the jam.
                      Good point. The brass stuff will show up in a few weeks, I can use this stuff for other projects. Thanks!

                        Comment

                        • hywel
                          Lieutenant
                          • Aug 2022
                          • 65
                          #7
                          Originally posted by Bob Gato
                          I would suggest tubes not rods-fill the tube with foam...VERY rigid. CF rods and tubes are pricey with min buy...

                          I am now going with a Sullivan control cable in guide tube-(plastic in plastic with provision for a 2/56 ss treaded coupling rod to connect a Dubro plastic quick link) -No metal to metal/inexpensive/ readily available/ RC model aircraft proven/ no trapped air /flex if needed and no corrosion.
                          Sounds like a good plan for the next boat (oh there will be another if my tanks are anything to go by!). Cheers!

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