1st boat build, 57" Thundercat Expresscraft Catamaran. Need help & suggestions.

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  • aqwut
    Junior Member
    • Dec 2013
    • 12

    #1

    1st boat build, 57" Thundercat Expresscraft Catamaran. Need help & suggestions.

    I there, I bought this Hull http://s261.photobucket.com/user/aqw...esize.jpg.html
    a long time ago, and was trying to sell it and I only wanted to keep one boat. Now, since I sold all my boats, this was the only one I have left. What Hardware should I use?
    SPEED: I am looking for ~50-60 mph
    MOTOR: one or two Leopard 5692? I have a Huge 180 KV outrunner, but would the RPMs on 12S be too slow?
    RPM: I am not sure which KV motor to use to use
    HARDWARE: I have no idea, Single flex drive or dual?
    PROP: I haven't the slightest clue.
    ESC?: What do you guys recommend
    BAT: 6S, 8S or 12S to achieve this speed.

    Any input would be appreciated. Thanks. I am usually a land lover, but since my brother bought a house on the lake. I am starting to like the Water.
    20140113_132710_resize.jpg
  • iridebikes247
    Fast Electric Addict!
    • Dec 2011
    • 1449

    #2
    I never run gas boat hardware but, I think expresscraft has stingers on their site you can use?

    Its really a pretty simple formula to get something like that moving. x457 octura prop for starting, leopard 5692 730kv OR, tp power 5850 750kv motors. The tp power is much better imo and I have run both. Esc a swordfish 240 would be great. Swordfish 300 would be good too so either one.
    Youtube: https://www.youtube.com/channel/UCSr...6EH3l3zT6mWHsw

    Comment

    • Doby
      KANADA RULES!
      • Apr 2007
      • 7280

      #3
      Got a budget in mind?
      Grand River Marine Modellers
      https://www.facebook.com/search/top/...ne%20modellers

      Comment

      • aqwut
        Junior Member
        • Dec 2013
        • 12

        #4
        Originally posted by Doby
        Got a budget in mind?
        I would like to keep it under $1000, if possible. I would also like it to be reilable and fully serviceable. Or should I just rid of this and buy someone's setup.

        Comment

        • aqwut
          Junior Member
          • Dec 2013
          • 12

          #5
          Originally posted by iridebikes247
          I never run gas boat hardware but, I think expresscraft has stingers on their site you can use?

          Its really a pretty simple formula to get something like that moving. x457 octura prop for starting, leopard 5692 730kv OR, tp power 5850 750kv motors. The tp power is much better imo and I have run both. Esc a swordfish 240 would be great. Swordfish 300 would be good too so either one.
          Ok. I would go with the swordfish 300. Does anyone know the capable speeds of this hull?

          Comment

          • lenny
            Fast Electric Addict!
            • Sep 2010
            • 4293

            #6
            Hear some info for you to look in to,
            With trying to keep in a low budget but still have fun with it.
            http://forums.offshoreelectrics.com/...hlight=FASTVEE
            ? ONLY IF THEY WORK

            My youtube videos.http://www.youtube.com/user/61manx?feature=mhee

            Comment

            • Fluid
              Fast and Furious
              • Apr 2007
              • 8012

              #7
              I cannot understand why people (most of whom have never built a 10S boat) feel the need to recommend a 300 amp controller. Big boats rely on voltage for power, not amps. A 200 to 240 amp controller is plenty for 50-60 mph. My 10S boats average 130-150 amps in 60-65 mph set ups. While headroom is always nice, the Schulze 160 amp controller has been the gold standard for years, and the Castle 200 has worked great for club members.



              .
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              Comment

              • aqwut
                Junior Member
                • Dec 2013
                • 12

                #8
                Originally posted by Fluid
                I cannot understand why people (most of whom have never built a 10S boat) feel the need to recommend a 300 amp controller. Big boats rely on voltage for power, not amps. A 200 to 240 amp controller is plenty for 50-60 mph. My 10S boats average 130-150 amps in 60-65 mph set ups. While headroom is always nice, the Schulze 160 amp controller has been the gold standard for years, and the Castle 200 has worked great for club members.



                .
                You're right. But what if some pond scum plug up the cooling tube? The extra head room would save the esc. ;-)

                Comment

                • aqwut
                  Junior Member
                  • Dec 2013
                  • 12

                  #9
                  Originally posted by lenny
                  Hear some info for you to look in to,
                  With trying to keep in a low budget but still have fun with it.
                  http://forums.offshoreelectrics.com/...hlight=FASTVEE
                  Perfect! Thanks....

                  Comment

                  • lenny
                    Fast Electric Addict!
                    • Sep 2010
                    • 4293

                    #10
                    If your motor is not a amp hog and you are not building it on the edge for saw passes and over propping it,
                    And also it is trimmed out right.
                    Then the setup will do it's job with out pulling high amps with also using right cells to.
                    ? ONLY IF THEY WORK

                    My youtube videos.http://www.youtube.com/user/61manx?feature=mhee

                    Comment

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