Boat from scratch

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  • RC Mechanic
    Member
    • Jul 2007
    • 73

    #16
    Okay, Ill find doozie and give him a pm i guess. One thing that i just thought of though, Megatech makes a .16 engine and you can get them brand new on ebay for about $50. Would it be worth trying to hook one of these up or would it be too complicated? Never hooked up a nitro engine in a boat so IDK.

    Ill give doozie a pm and see how much he can get me a motor for and if he can get me a motor.

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    • Stealth Assassin
      Senior Member
      • Apr 2007
      • 610

      #17
      Nitro takes alot of tuning.........:p The brushed 800 will be just right for you. Tell him I sent you.

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      • RC Mechanic
        Member
        • Jul 2007
        • 73

        #18
        ok, I sent him a PM. I said i was talking with you so I guess that enough. Thanx for the help. Ill let you know what he says.

        BTW as far as a speed control I have a few spares laying around. One is a Traxxas XL-5 and the other is an Older Novak M-10 or M-510 or something like that. Will one of these work for the speed control? They are for cars so they aren't water cooled. I might be able to rig something up on the novak though. But will one of these work ok for the speed control? THe biggest motor ive ever used is a 550.

        Also I was planing on running 6 and 7 cell stick packs in these. SO the system being 7.2-8.4 volts. WOuld this be ok or should I plan on going up to a 14-16 cell setup?

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        • saleens7
          Fast Electric Addict!
          • Apr 2007
          • 1108

          #19
          with the 800, youll want to run 14-20 cells..i havent checked those esc's out yet, but i know the XL-5 can only handle 8 cells and i dont know about the novak, but knowing its meant for rc cars, i would guess it will only take around 8-9 cells....

          you should use either the Rc-Hydro's 90 amp esc (which has a 450amp surge)...its probably the best brushed esc out there and its waterproof and watercooled...this is is bulletproof (not literally of course, but you get my point)....the other option is the Jeti Navy 600....up to 30 cells, can take up to 60 amps, waterproof, watercooled....

          http://www.offshoreelectrics.com/pro...prod=hl-je600n

          http://www.offshoreelectrics.com/pro...od=rch-vic1032

          (only problem is the jeti is out of stock...although the rc-hydros esc costs more, from the comments i hear about it, its worth every penny...)
          saleens7, the wookie of rc boating

          Comment

          • RC Mechanic
            Member
            • Jul 2007
            • 73

            #20
            THe novak only handles up to 10 cells. One possible solution for me would be to use a traxxas EVX> i can make that watercooled. I have one in my emaxx which I will be selling pretty soon. Ill just leave the EVX out of the deal and keep that. That way I will be able to run 14 and 16 cells. Ill be using the batterys I use for my trucks so I am stuck to 6 cell batteries and 7 cell batteries. I just have to use those, but I can make a harness to wire them what ever way I want, series or parallel. SO the 800 sized motor, traxxas EVX speed control, wooden hull. It seems to be coming together. I just have to find some wood.

            BTW Stealth- you said birch would be good for the bulkheads. I don't like asking this cuz it makes me feel like to much of a noob but what are the bulkheads? DO you mean the skeleton part when you say that or????

            Also how much do you think 1/8 birch will run me? WHat about balsa? Thanx

            Comment

            • Doozie870
              Senior Member
              • Apr 2007
              • 828

              #21
              The mabuchi 800 runs great on 12 cells. in stock form, expect about 3-4 mph over the ss1 while pulling less amps, also it is one tough SOB. :D

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              • RC Mechanic
                Member
                • Jul 2007
                • 73

                #22
                Thanx doozie. I'm going to get the hull done first and everything b4 I start dumping money into electronics.

                Comment

                • RC Mechanic
                  Member
                  • Jul 2007
                  • 73

                  #23
                  this is just a possibility but this allelectronics.com has really cheap motors. Mainly 550s though. I found this one thats looks much bigger but IDK how big or the size of the motor. Any idea if it could be modded to work?

                  Comment

                  • saleens7
                    Fast Electric Addict!
                    • Apr 2007
                    • 1108

                    #24
                    way too little rpm....only 2350 at 24v
                    saleens7, the wookie of rc boating

                    Comment

                    • RC Mechanic
                      Member
                      • Jul 2007
                      • 73

                      #25
                      Ok, what RPM should I be shooting for?

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                      • RC Mechanic
                        Member
                        • Jul 2007
                        • 73

                        #26
                        Theres this motor that is 15,200 RPM at 12 volts, so i sould get some more if i ran it at 14.4 volts or 16.8

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                        • RC Mechanic
                          Member
                          • Jul 2007
                          • 73

                          #27
                          Sorry forgot the link.

                          Comment

                          • saleens7
                            Fast Electric Addict!
                            • Apr 2007
                            • 1108

                            #28
                            i think thats a 550 or 600 size motor....still too small....for a 36" hull youll want an 800 size....just use the one on this site

                            http://www.offshoreelectrics.com/pro...?prod=grp-6375
                            saleens7, the wookie of rc boating

                            Comment

                            • RC Mechanic
                              Member
                              • Jul 2007
                              • 73

                              #29
                              Ok thanx. I just figured that It doesn't hurt to ask.

                              Comment

                              • RC Mechanic
                                Member
                                • Jul 2007
                                • 73

                                #30
                                Ok well i have one more idea on a motor. Just trying to think of things to save $$$$. I have an old fold up electric scooter sitting in the garage. I think the speed control or something is broke on it cuz it doesn't work. The motor in that Is much bigger than an 800 sized but i think it might fit in the boat. Its probably twice the diameter of a 550 motor. Just a thought. If not ill buy the 800 from doozie when i get the hull built.

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