Twin powered carbon Rivercat build

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  • srislash
    Not there yet
    • Mar 2011
    • 7673

    #31
    I really like the look there Travis. Maybe make sure you have plenty of CG adjustment to deal with that fixed stinger setup.

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    • kfxguy
      Fast Electric Addict!
      • Oct 2013
      • 8746

      #32
      Originally posted by srislash
      I really like the look there Travis. Maybe make sure you have plenty of CG adjustment to deal with that fixed stinger setup.
      Yea.....in this little hull I won't have much adjustment. I'm going to mount the motors first because I have no choice where they go, then I will mount the battery trays. Put batteries in. Then start laying out the rest of the stuff to set my Cg where my other rivercats were. I'll probably end up doing the Cg a tad further up because the twin props will likely give me more bow lift than a single prop. Then there is always a little ballast I can add. I'll do my best!
      32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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      • kfxguy
        Fast Electric Addict!
        • Oct 2013
        • 8746

        #33
        Originally posted by Brushless55
        Really looking forward to what you think of the TP vs the Castle 1415


        The tp did go a little faster but ran noticeably hotter. The tp went 64.5 and the castle went 61.8
        32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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        • littlepooper206
          little member
          • Jul 2014
          • 159

          #34
          How much of the carbon drive shaft "tube" is in the hull ? Do you think it would help to have a good amount of the carbon tube in the hull so that you can attach them and get a good bite of support for them?, Well besides the normal support under the rear overhang of the hull where the support point comes down and attaches to the shafts when it comes to the drives ? Im just wondering for myself because when i saw this i really liked the idea and would like to try and implement the idea of your drives "carbon tubes" and i would like to put them on my next build... But if that is alright with you first of all ? If you object i will understand but if your cool with me borrowing your idea that would be great. I look forward for your reply on my many questions i have asked ya lol

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          • kfxguy
            Fast Electric Addict!
            • Oct 2013
            • 8746

            #35
            Originally posted by littlepooper206
            How much of the carbon drive shaft "tube" is in the hull ? Do you think it would help to have a good amount of the carbon tube in the hull so that you can attach them and get a good bite of support for them?, Well besides the normal support under the rear overhang of the hull where the support point comes down and attaches to the shafts when it comes to the drives ? Im just wondering for myself because when i saw this i really liked the idea and would like to try and implement the idea of your drives "carbon tubes" and i would like to put them on my next build... But if that is alright with you first of all ? If you object i will understand but if your cool with me borrowing your idea that would be great. I look forward for your reply on my many questions i have asked ya lol
            I have a little more than 1/2"'coming in the hull. Keep in mind that things are tight with this little hull and I'm running fairly large motors. Your welcome to do this if you like but I must warn you, it's a pita. It's hard keeping them lined up while the epoxy is drying. I had to jb weld the bearings in because the loctite sleeve retainer didn't hold them. Also put the bearings in last because I had to run a drill bit through the tubes because epoxy ran into the tubes (so it's a good thing the loctite didn't hold!!). I tacked one motor in place last night. I have had much time with it as I'm bouncing between 5 builds at once right now. I'll have to set my Cg once the motors are in place.


            32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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            • RCKong
              Fast Electric Addict!
              • Sep 2009
              • 1545

              #36
              With those stingers you made, looks like moving your packs back and forth will be your only adjustment. Are your motors back far enough ? you might want to get those motors to the back as far as you can if you are putting your packs in the sponsons.
              I hear ya about being a PITA... I built one of these out of spare parts and it is VERY useful installing bolts in these things. IMG_20150711_084536829.jpg

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              • kfxguy
                Fast Electric Addict!
                • Oct 2013
                • 8746

                #37
                Originally posted by RCKong
                With those stingers you made, looks like moving your packs back and forth will be your only adjustment. Are your motors back far enough ? you might want to get those motors to the back as far as you can if you are putting your packs in the sponsons.
                I hear ya about being a PITA... I built one of these out of spare parts and it is VERY useful installing bolts in these things. [ATTACH=CONFIG]134477[/ATTACH]

                Man I have some awesome motor mounts. They are twist slotted. You loosen the screws a touch and twist motor and come right out. Easy.

                I could not move the motor any further back because of the motor length and angle. Where it's at is as far back as I can get it. I'll figure it out. I have some ideas and I also know what the Cg needs to be on this hull.
                32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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                • RCKong
                  Fast Electric Addict!
                  • Sep 2009
                  • 1545

                  #38
                  I could not move the motor any further back because of the motor length and angle
                  I see what your saying. do you build the motor mounts ? i like the twist out mounts but not confident enough to make the slot and mount hole right.

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                  • kfxguy
                    Fast Electric Addict!
                    • Oct 2013
                    • 8746

                    #39
                    Originally posted by RCKong
                    I see what your saying. do you build the motor mounts ? i like the twist out mounts but not confident enough to make the slot and mount hole right.

                    I had Monojeff make them for me. I'll post a pic of the other. I have a template to trace if I ever need to. Once I get my cnc up and running (yea I still haven't fooled with it, been too busy) then I'll make a file for them.
                    32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                    Comment

                    • kfxguy
                      Fast Electric Addict!
                      • Oct 2013
                      • 8746

                      #40
                      Originally posted by RCKong
                      I see what your saying. do you build the motor mounts ? i like the twist out mounts but not confident enough to make the slot and mount hole right.

                      Here's a short video I made just for you :)

                      32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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                      • RCKong
                        Fast Electric Addict!
                        • Sep 2009
                        • 1545

                        #41
                        Man I'd get spoiled havin it that easy... LOL

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                        • kfxguy
                          Fast Electric Addict!
                          • Oct 2013
                          • 8746

                          #42
                          Originally posted by RCKong
                          Man I'd get spoiled havin it that easy... LOL
                          That's how I roll...I'm not fighting with screws in that little space.
                          32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                          Comment

                          • kfxguy
                            Fast Electric Addict!
                            • Oct 2013
                            • 8746

                            #43
                            Guys, give me some ideas on how to support those drive tubes. I'm not crazy about just gluing some carbon plate to them and calling it a day.....
                            32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                            Comment

                            • Brushless55
                              Creator
                              • Oct 2008
                              • 9488

                              #44
                              Originally posted by kfxguy
                              The tp did go a little faster but ran noticeably hotter. The tp went 64.5 and the castle went 61.8
                              Thanks for the update
                              .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

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                              • keithbradley
                                Fast Electric Addict!
                                • Jul 2010
                                • 3663

                                #45
                                Originally posted by kfxguy
                                Guys, give me some ideas on how to support those drive tubes. I'm not crazy about just gluing some carbon plate to them and calling it a day.....
                                Are you familiar with "The force"?
                                www.keithbradleyboats.com

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