Hull recommendation - Single or Twin Catamaran?

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  • Dashunde
    Member
    • Sep 2014
    • 53
    #1

    Hull recommendation - Single or Twin Catamaran?

    Hi all, I'm new tow boats, but not r/c or electric stuff, and I want to build my first boat.

    I have a new Leopard 4074 2200kv that I was going to use in a Villain Ex conversion, but now after getting seduced by a bunch of youtube videos I'd rather use that motor in a nice cat build.
    (The Villain will be a beater built with used/cheap stuff for the kids)

    I'm looking for hull recommendations (and build threads?) for a single cat and a larger twin motor cat that would be suitable for a pair of those Leopards each powered by a pair of 2s 40c 5000's (4s).

    Normally I wouldn't build around a motor, but a 4074 is about as far as I can go with 4s, and I want to stick with 4s because I already have a pile of fairly new GensAce 2s 5000's from my 1/8 scale cars.

    Don't plan on racing it in any class and I have a few large lakes around to run it on.

    Thanks for your thoughts.
    Last edited by Dashunde; 12-07-2014, 06:35 PM.
    Tags: None
    • Luck as a Constant
      Make Total Destroy
      • Mar 2014
      • 1952
      #2
      Depends what you wanna do with it. Turn or no turn lol
      Your motor would do nice in a mean machine cat hull and turn very well. Properly setup you can hit 50 and above on 4s.

      That's all the advise I'll give because I've had that exact boat and motor.
      Good luck on your build


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      There's a hole at the center of earth where the rest of the world sinks but i stand still...

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        • Fluid
          Fast and Furious
          • Apr 2007
          • 8011
          #3
          Your motor will not be appropriate for 6S, but you can certainly run three 2S packs in series for 6S. Just another option if you want to run a boat over about 34".




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            Comment

            • kfxguy
              Fast Electric Addict!
              • Oct 2013
              • 8746
              #4
              A 32" rivercat would be a nice candidate also. They come in full carbon fiber or white gelcoat fiberglass. Here's one i built for a guy a few weeks ago. It had a very mild prop, 1800kv motor, 6s and I was not getting on it hard because it wasn't mine and I don't beat on other people's stuff. This is a very beautiful little hull.




              And here's a pic.

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

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                • Dashunde
                  Member
                  • Sep 2014
                  • 53
                  #5
                  I really like that Rivercat.. its definitely on the right track.

                  I dont mind running 3x 2s bricks for 6s in a single drive I suppose, but 6 of them in a twin would get to be be a pain, no?
                  Not real sure if I can get away with running 6s on that Leopard like folks are with the Neu 1515? Has anyone done it? What prop?

                  I've been looking at their 37" shocker, but I'm not sure it would be worth doing twins on 4s? Comments welcome here..

                    Comment

                    • kfxguy
                      Fast Electric Addict!
                      • Oct 2013
                      • 8746
                      #6
                      For your first boat, keep it simple. The rivercat is actually something you could grow with too. I have not reached its speed limit yet. I think it still has about another 5-7mph more I can get out of it. Check the builds section...I've built a couple. Well more than a couple lol. It's my favorite small hull. It's seems to do it all fairly well. There are cats than turn much better but most are hard pressed to attain the speeds this one can (I'm not saying I have the fastest boat in the world by any means and there always some exceptions). There are other good choices for you for sure, but this one seems to fit with what your working with. The shocker is on the large side and I really love that hull (had one) but you'd need to run twins in that one. I'd start out simple.....work your way up. That's my best advice.
                      32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

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                        • olwarbirds
                          Magic Smoke Wizard
                          • Oct 2012
                          • 1136
                          #7
                          I have run the 4074 2200kv on 6S and many other 2200kv and up motors. But, these are "SAW" setups not made to go do laps around lake. As fluid said 4S is plenty for that motor in a nice hull like the rivercat...
                          Tunnels-PS295. Cats-H&M M1 Supercat Daytona rivercat. Monos-DF Cyberstorm HiTech 29. Hydros- Ms K Vac-U-Pickle Custom built 37" shovel 10th scale converted to FE Shadow. Rigger-H&M Evo II. AQ Harbortug recovery boat. Build in progress 37" cf Dragboat

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                            • kfxguy
                              Fast Electric Addict!
                              • Oct 2013
                              • 8746
                              #8
                              Here is my rivercat with a 1515 castle, 2200kv on 4s. Keep in mind, this was the first time I ran it, the prop was not optimal and the strut setting was way off. I didnt know near what i do now and i was pretty new at this. Btw, I would not run that leopard motor on 6s. In my opinion from having disassembling numerous motors, including leopard, the build quality does not look like it hold up to that kind of rpm for any amount of time. That's just my experienced guess. It may work fine, only one way to find out....or not...lol
                              32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                                Comment

                                • Dashunde
                                  Member
                                  • Sep 2014
                                  • 53
                                  #9
                                  Thats not too bad for 4s. What prop was that running Travis?
                                  It appears I can run 6s occasionally... but shouldn't make a habit of it, or if I do I should not steadily hammer on it..
                                  I want a nice build, but I'm not going chase every mph.

                                  I'm not too worried about the added complexity of a slightly larger twin, it appears to just cost more for the most part and takes more time to build.
                                  I really like that there is no prop walk, the torque is neutralized, the cog is lower and the rudder becomes a center line unit.
                                  Overall, it becomes more "scale" looking with twin struts. It'll sit in its stand at home as a decoration 99.9% of the time...

                                  I'm also wondering about running the 32" Rivercat on a pair of large 28mm or small 36mm motors on 6s using 3x 2s 5000's that are shared by both motors?
                                  Is the 32" hull even capable of taking motors down in the sides? Is there good access to those areas?

                                  Ok... so the Rivercat is a great option for speed.
                                  How about a similar boat that'll be a bit slower, but will turn hard? The Mean Machine was mentioned above... any other thoughts on that one?
                                  Last edited by Dashunde; 12-08-2014, 11:23 AM.

                                    Comment

                                    • kfxguy
                                      Fast Electric Addict!
                                      • Oct 2013
                                      • 8746
                                      #10
                                      Originally posted by Dashunde
                                      Thats not too bad for 4s. What prop was that running Travis?
                                      It appears I can run 6s occasionally... but shouldn't make a habit of it, or if I do I should not steadily hammer on it..
                                      I want a nice build, but I'm not going chase every mph.

                                      I'm not too worried about the added complexity of a slightly larger twin, it appears to just cost more for the most part and takes more time to build.
                                      I really like that there is no prop walk, the torque is neutralized, the cog is lower and the rudder becomes a center line unit.
                                      Overall, it becomes more "scale" looking with twin struts. It'll sit in its stand at home as a decoration 99.9% of the time...

                                      I'm also wondering about running the 32" Rivercat on a pair of large 28mm or small 36mm motors on 6s using 3x 2s 5000's that are shared by both motors?
                                      Is the 32" hull even capable of taking motors down in the sides? Is there good access to those areas?

                                      Ok... so the Rivercat is a great option for speed.
                                      How about a similar boat that'll be a bit slower, but will turn hard? The Mean Machine was mentioned above... any other thoughts on that one?
                                      That was an x642 not detounged. Mean Machine would be a good choice also, based on what I've seen on here. Cant comment from personal experience on that hull as I've never owned one..
                                      32" carbon rivercat single 4s 102mph, 27” mini Rivercat 92mph, kbb34 91mph, jessej micro cat(too fast) was

                                        Comment

                                        • Luck as a Constant
                                          Make Total Destroy
                                          • Mar 2014
                                          • 1952
                                          #11
                                          Here's mine running castle 2200 on 5s. http://youtu.be/mjEqHaqyLdk

                                          I do have vid of it on 4s with the leopard if you want to see that.



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                                          There's a hole at the center of earth where the rest of the world sinks but i stand still...

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                                            • Dashunde
                                              Member
                                              • Sep 2014
                                              • 53
                                              #12
                                              Originally posted by Luck as a Constant
                                              I do have vid of it on 4s with the leopard if you want to see that.
                                              Definitely want to see that! What prop?
                                              Thanks.

                                                Comment

                                                • Luck as a Constant
                                                  Make Total Destroy
                                                  • Mar 2014
                                                  • 1952
                                                  #13
                                                  On 4s I ran m445
                                                  The above vid is m440


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                                                  There's a hole at the center of earth where the rest of the world sinks but i stand still...

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                                                    • Luck as a Constant
                                                      Make Total Destroy
                                                      • Mar 2014
                                                      • 1952
                                                      #14
                                                      http://youtu.be/VJeqkDzRXwg


                                                      Skip to 1:07 for mean machine.
                                                      Sorry bout the music lol


                                                      Sent from my iPhone using Tapatalk
                                                      There's a hole at the center of earth where the rest of the world sinks but i stand still...

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                                                        • Apophis
                                                          Space Cadet
                                                          • Jun 2013
                                                          • 142
                                                          #15
                                                          Originally posted by Luck as a Constant
                                                          Sorry bout the music lol
                                                          What's wrong with the music?
                                                          Perspective

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