Twin outboard center console build

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Make-a-Wake
    FE Rules!
    • Nov 2009
    • 5557

    #31
    Originally posted by eboat
    If you are using the 11.1 volt lipos (3S) try dropping down to a 7.4 (2S) and you will go slower and closer to the scale speed you are looking for
    I agree, the stock 550's are made to run on 6 or 7 cell nimh's............your 3s lipos will be packin' 12.6v off the charger.
    NEED PARALLEL CONNECTORS?? QUALITY 5.5MM, 8MM, 8 AND 10 AWG, GET THEM HERE: http://forums.offshoreelectrics.com/...est!&highlight=

    Comment

    • ScarabChris
      Senior Member
      • Oct 2010
      • 752

      #32
      LOL.....but I do like how fast it is.

      You guys think these LiPos will burn the motors up even if I am not at full throttle?

      Comment

      • Make-a-Wake
        FE Rules!
        • Nov 2009
        • 5557

        #33
        If you run it half throttle most of the time, the ESC will get very hot............you're gonna get heat either way unless you go with 2 cell lipo's or 6-7 cell nimh.
        NEED PARALLEL CONNECTORS?? QUALITY 5.5MM, 8MM, 8 AND 10 AWG, GET THEM HERE: http://forums.offshoreelectrics.com/...est!&highlight=

        Comment

        • ScarabChris
          Senior Member
          • Oct 2010
          • 752

          #34
          OK I guess I'll get some NmHi packs from Steve. They are probably a little heavier which will help anyway.

          Comment

          • ScarabChris
            Senior Member
            • Oct 2010
            • 752

            #35
            Few new pictures. Did a few trial runs and blew a lower unit (gears) already. At least it doesn't cost $3 grand like it does on a real boat. I had a new in the box motor so I just swapped it out. I'm pretty sure it was my fault, the canal behind my house has a lot of crap floating in it and I think something jammed the prop.

            OK so here are the pictures. Everything is dry fit. I'll be using 7 cell 8.4 volt NiMh batteries instead of these 11.1 volt LiPos. I think they are to powerfull for these motors.

            I had to move the motors down a lot which required some creative "custom" work on the mounting brackets. But I think I got it! This boat runs very nice. Once I get the trim tabs on it should run even better.



            Comment

            • ScarabChris
              Senior Member
              • Oct 2010
              • 752

              #36
              Originally posted by RandyatBBY
              I will mostly need the height and how wide all the dimensions to make it, good pictures will help a lot, lots of angles.

              I thought you were complaining about the speed being too fast. Yes it will slow down the top speed. Electrics like to be full out it is easyer on the ESC. to go slow there is a answer I am not your guy on that.
              I'm going to make some drawings this weekend for the arch. I can email it to you. Maybe you can do a leaning post too? That will be much simpler than the arch, basically just 4 legs.

              Let me know how you want to do it, and I'll certainly pay you for your time, expertise and material.

              Comment

              • Make-a-Wake
                FE Rules!
                • Nov 2009
                • 5557

                #37
                Holy crap................those motor wires are like 6 feet long!

                They may generate a good bit of heat...........

                Looks nice, and i think the nimhs are a good choice.

                Here's my old setup on my 45" Dumas...........brushless motors. Wanted a more sound BL setup so i went with a single Neu 1527.
                Attached Files
                NEED PARALLEL CONNECTORS?? QUALITY 5.5MM, 8MM, 8 AND 10 AWG, GET THEM HERE: http://forums.offshoreelectrics.com/...est!&highlight=

                Comment

                • ScarabChris
                  Senior Member
                  • Oct 2010
                  • 752

                  #38
                  Hey how did that boat run? I was considering doing a bigger hull but I wanted more of a scale look? Post more pictures of that rig if you have them. What do you mean when you say "BL" and "Neu 1527"?

                  Also a question about CG on a boat like this. With so much weight on the back my CG is nowhere near that "30% of the hull from the transom" even with all the batteries way up front. Thats why I extended the ESC wires so I could put them up front. No worries I soldered everything and used a good marine grade wire.

                  Comment

                  • ScarabChris
                    Senior Member
                    • Oct 2010
                    • 752

                    #39
                    Some new pics.

                    Laying out the deck and liner with 1/8" white acrylic

                    Deck and liner is all together


                    Building the console...


                    Console in the boat. It still needs finish work.


                    Comment

                    • forescott
                      Hopelessly Addicted to RC
                      • Nov 2009
                      • 2686

                      #40
                      That looks fantastic!

                      Comment

                      • westbeach
                        OSE Rocks!
                        • Feb 2008
                        • 951

                        #41
                        BL - Brushless
                        Neu 1527 - Neu Motors 1527 series. Check out OSE for different winds/KV.

                        If you can't move the batteries too far fwd, you should add ballast to the front. Rather than extending your battery wires.

                        Your build looks great! Keep the pics coming.


                        Originally posted by ScarabChris
                        What do you mean when you say "BL" and "Neu 1527"?

                        Also a question about CG on a boat like this. With so much weight on the back my CG is nowhere near that "30% of the hull from the transom" even with all the batteries way up front. Thats why I extended the ESC wires so I could put them up front. No worries I soldered everything and used a good marine grade wire.
                        HPR115 x2 ,Dark Horse Shovel, Delta Force CyberStorm, Delta Force Sniper 23-RTR:

                        Comment

                        • ScarabChris
                          Senior Member
                          • Oct 2010
                          • 752

                          #42
                          Some new pics of the project....

                          Mercs to Evinrudes..



                          Console and lean post..


                          In water shots..I think it floats perfect. Waiting on trim tabs and props for final testing.


                          Comment

                          • Darin Jordan
                            Fast Electric Addict!
                            • Apr 2007
                            • 8335

                            #43
                            That is just too cool! Can't wait to see it run!!
                            Darin E. Jordan - Renton, WA
                            "Self-proclaimed skill-less leader in the hobby."

                            Comment

                            • BILL OXIDEAN
                              Banned
                              • Sep 2008
                              • 1494

                              #44
                              This thing is close to THE most awesome project I've ever seen.
                              Its going to rip no doubt.

                              My imagination sees a servo activated trim for the outboards

                              Comment

                              • BILL OXIDEAN
                                Banned
                                • Sep 2008
                                • 1494

                                #45
                                Originally posted by Darin Jordan
                                That is just too cool! Can't wait to see it run!!
                                What's up Darin, Randy picked up a Spektrum yesterday!
                                He needs to know what receivers are compatible with what..

                                Comment

                                Working...