What props to use

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  • aussiemick
    Junior Member
    • Mar 2015
    • 8

    #1

    What props to use

    Hey Guys
    Building a 114 twin cat , using SSS 4092 1650kv motors. 220 amp swordfish speed controlls.
    Using 6s batteries
    What props would you use. Not chasing huge speed , wanting a safe set up to start out with.
    I am newby to boats.
  • koen
    Senior Member
    • Mar 2020
    • 358

    #2
    start with cnc 4619 to start with(2 blade)

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    • Bande1
      Senior Member
      • Mar 2023
      • 684

      #3
      safe starting point
      https://www.offshoreelectrics.com/pr...od=cnc-4314250
      https://www.offshoreelectrics.com/pr...=cnc-4314250-R
      Last edited by Bande1; 07-23-2023, 06:20 AM.

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      • aussiemick
        Junior Member
        • Mar 2015
        • 8

        #4
        I have found 2 sets of cnc props.
        4616 2 blade 1.6 pitch
        4714 2 blade 1.4 pitch
        Both are sold as a pair.
        4619 are not listed on this website.

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        • koen
          Senior Member
          • Mar 2020
          • 358

          #5
          oh yeah the xx19 prop are from TFL, the TFL dealer in germany has all the seizes props from 1.4 to 1.9 (but the 1.9 is only 1.2 pitch it's a graupner copy)but if you start with the 4714 it's a good start

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          • Bande1
            Senior Member
            • Mar 2023
            • 684

            #6
            in this thread he is using 4816 on a much smaller twin cat (36") with more powerful motors and pushing it to its limits. he includes data log to confirm.

            https://forums.offshoreelectrics.com...ger-Cat-Update

            final pitch:
            60mm for long oval lapping
            65mm for bashing
            70mm for speed runs

            Comment

            • fweasel
              master of some
              • Jul 2016
              • 4286

              #7
              Since both the boat and driver are new, I would suggest you start with a prop similar to an Octura 447 (47mm diameter, 1.4 pitch ratio). Because you've chosen a mid range motor kV that is well suited for 6S running, you'll ultimately run a slightly larger diameter when looking for more speeds.
              Vac-U-Tug Jr (13mph)

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              • aussiemick
                Junior Member
                • Mar 2015
                • 8

                #8
                Thanks guys for the info.
                Will order a set.

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