Scale Scarab Sport build......

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  • JackBlack26
    Senior Member
    • May 2007
    • 905

    #16
    Wow! Absolutely beautiful model. It looks so real. Congratulations on such a cool build!!

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    • ScarabChris
      Senior Member
      • Oct 2010
      • 752

      #17
      Stay tuned.....
      Attached Files

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      • NativePaul
        Greased Weasel
        • Feb 2008
        • 2761

        #18
        Scale speed is the square of the scale factor, so for your 1:12 models it is 3.464. A 70mph full size cruise will look right at about 20mph, still not much fun to be had there, but much better than you thought.
        Paul Upton-Taylor, Greased Weasel Racing.

        Comment

        • ScarabChris
          Senior Member
          • Oct 2010
          • 752

          #19
          Originally posted by NativePaul
          Scale speed is the square of the scale factor, so for your 1:12 models it is 3.464. A 70mph full size cruise will look right at about 20mph, still not much fun to be had there, but much better than you thought.
          Yes I have seen that equation before. But nobody builds a scale (go-fast) boat and says to themselves...."I have to make sure this thing only goes 15 MPH"...LOL
          That scale Scarab hit about 30 actual MPH (slightly faster without the deck and arch assembly in place) with those Aquacraft EP1 outboards....which were converted to brushless.

          I have a feeling the boat will be much faster with what is going on the transom next.

          It's still a scale build.....until I punch the throttles. LOL

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          • srislash
            Not there yet
            • Mar 2011
            • 7673

            #20
            This is such a nice build. Next?

            Comment

            • fweasel
              master of some
              • Jul 2016
              • 4285

              #21
              Originally posted by ScarabChris
              Port-a-pottie? Not in the console. It used to be in the cabin but the first time I got pee on my hands trying to empty it that was the end of that.
              Reminds me of what a good friend of mine says about the porta-potty in his boat and when someone asks if they can use it, "That's not mine, it belongs to the next owner, so we're keeping it clean for him."

              Toilets aside, center console boats are just great looking models.
              Vac-U-Tug Jr (13mph)

              Comment

              • ScarabChris
                Senior Member
                • Oct 2010
                • 752

                #22
                Originally posted by fweasel
                Reminds me of what a good friend of mine says about the porta-potty in his boat and when someone asks if they can use it, "That's not mine, it belongs to the next owner, so we're keeping it clean for him."

                Toilets aside, center console boats are just great looking models.

                Yeah I have heard that line before. But that won't work on my boat....way to many women and now....kids on board. I don't even have the real Scarab anymore. I sold it in 2011 and bought this....yes I am considering a scale build of this one too...

                Couple pics...this one is a tank, 38 feet total length and 12,000 pounds when full of fuel. The cabin has a head, AC and flat screen TV in it as well, much nicer cabin than the Scarab. There is also room in the cabin for two 50+ inch RC boats.

                Showing shortly after I bought it (on the trailer), a pic of it docked in Bimini Bahamas and docked behind my house where I do a lot of RC boat testing. The neighborhood dogs love it. LOL
                Attached Files

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                • ScarabChris
                  Senior Member
                  • Oct 2010
                  • 752

                  #23
                  Sneak peek. Notice the weight difference alone. Old motors weigh almost double what the new ones will weigh. Old motors weigh 950 grams. New motors will be at 534 grams. Yes they will be turned into Evinrude's.
                  Attached Files

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                  • ScarabChris
                    Senior Member
                    • Oct 2010
                    • 752

                    #24
                    Motors on. Came out pretty good. The steering rod from the old motors will line up perfectly to the new motor so no modification at all for the steering. Just need to make a tie rod to connect the motors. The push rod ends you see on the engine bracket are 440 threaded rod ends. The top outside mounting bolt for the motor goes into the rod end and then it's screwed into the top of the platform to give the motors a little more holding power because the CF mounting plates are just epoxied on and the bottom motor bolts are just tapped into the plexi glass. It should hold up well. If I run into no extra roadblocks I may be able to test this thing today before dark.

                    Yes I made some extension boxes to put the props lower. I also used CR flex cables.
                    Attached Files

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                    • ScarabChris
                      Senior Member
                      • Oct 2010
                      • 752

                      #25
                      Finally got it running. It was dark out but only because I had to stop working on it for family obligations. Ran it in the canal, pitch dark out there but it was hauling a$$. I'll take some in water pics in the daylight
                      Attached Files

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                      • ScarabChris
                        Senior Member
                        • Oct 2010
                        • 752

                        #26
                        Just have to redo the mounting for the LiPo's, with the heavy EP1 outboards the batteries had to be shoved all the way up in the bow. These motors are so light that now the batteries have to be moved back which will require some modification to allow the deck to sit in place. But not a big deal. I think it looks killer. Once I get the battery mounting done and I can get the boat to running weight with the deck in place I'll take some in water pics.

                        Not liking how the water line is done. That thru hull fitting is the discharge (and flush port) for the ESC's. I think I'm going to give the motors their own intake which will clean up the back a little.
                        Attached Files

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                        • chs51
                          Junior Member
                          • Oct 2013
                          • 8

                          #27
                          What props are you using?

                          Comment

                          • chs51
                            Junior Member
                            • Oct 2013
                            • 8

                            #28
                            Also, please advise depth of outboard (propshaft) in relation to bottom of hull.

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                            • Alfa Spirit
                              Fast Electric Addict!
                              • Oct 2009
                              • 2131

                              #29
                              Vert nice nuild, do you know this one ?



                              This Cigarette is awesome

                              Comment

                              • Alfa Spirit
                                Fast Electric Addict!
                                • Oct 2009
                                • 2131

                                #30
                                Originally posted by chs51
                                What props are you using?
                                Red props are 38mm Venom

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