56" Cat. My First Boat build!

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  • twissted
    Senior Member
    • Jul 2012
    • 867

    #16
    thanks for the servo advice I think I will beef it up. I plan on running the boat with 8s and 6s lipos. I was just talking about the esc's abilities. I will run these esc's but wished that I bought higher amped. These are HV esc's and not high amped. 350 to 400 amp on the next build I do. Looking to do a 72'' after my 1/5 scale truck build. 16s X 3.7v X 1200kv = 71040 RPM yikes!
    twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

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    • bruiser77
      Senior Member
      • Apr 2011
      • 241

      #17
      Hello, it looks like you have your drives centered on the sponsons. From what I've read and done personally, you want them as close to the tunnel as comfortably possible for the best performance. Also, the steering servo mount will not hold up with this big boat on a pull pull system. You definitely will want to beef it up substantially. Bruiser

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      • Chilli
        Fast Electric Addict!
        • Jan 2008
        • 3070

        #18
        Originally posted by twissted
        Is this what I need to make the hull smooth?
        That's what I use for fiberglass repair and hull blueprinting.
        Mike Chirillo
        www.capitolrcmodelboats.com

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        • twissted
          Senior Member
          • Jul 2012
          • 867

          #19
          must be good stuff. thx
          twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

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          • twissted
            Senior Member
            • Jul 2012
            • 867

            #20

            This is the saddle that I was talking about.





            I thought I should make shure that the longer motors work as well.
            twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

            Comment

            • twissted
              Senior Member
              • Jul 2012
              • 867

              #21
              props came in!
              twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

              Comment

              • Punisher 67
                Ignore list member #67
                • May 2008
                • 1480

                #22
                Twissted - best of luck on your build
                Necessity is the mother of invention.............

                Youtube Video's http://www.youtube.com/user/Titanis2000

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                • twissted
                  Senior Member
                  • Jul 2012
                  • 867

                  #23

                  I started working on the props. I cut the tickness almost in half and the polishing is to see the work that need to be done on the front face. I use a dremel wheel that has a rubber and cutting compound in it to work the font face. I used a 80 grit sanding wheel to shape and remove the material from the backside.
                  I had a friend leath the 1/4" shafts down to 3/16 so that the props fit. Cost me 5.00 for his coffee for the week.

                  This shows how I'm going to check and ajust the motors if needed. I just need to change the plugs to 6mm so that they fit my system.

                  I thought I would show this picture to show how far the drive tubes fit inside the stingers.

                  This picture shows some of the layout I have planned. The recaro seat is for the GPS unit. I also have a camers mount for the boat I will install after I start on the out side of the boat.

                  This is the last pieces that will be installed for strength to the hull.
                  twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

                  Comment

                  • LOVE6S
                    Senior Member
                    • May 2012
                    • 545

                    #24
                    I have a question on the drive tubes pic in the prev post, with them going that far into your stinger will you be able to adjust the stingers up and down?

                    Comment

                    • twissted
                      Senior Member
                      • Jul 2012
                      • 867

                      #25
                      yes they seem to be ok. it a lot of ajustment is needed I may need topull the stinger and bent the tube more. I don' really know un till that time comes. I just know that the tube fits that far in so that is where i'm starting. I like it so far.
                      twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

                      Comment

                      • drwayne
                        Fast Electric Addict!
                        • May 2008
                        • 2981

                        #26
                        Hi.
                        I annealed ( heated and aircooled) the tube ends that enter the stinger.. this softens them for easier adjustment later.
                        The pull/pull cables are best sealed by a pair bellows inside the boat, on end the guide tube mounted from transom to where the servo sits.
                        http://forums.offshoreelectrics.com/...539#post420539

                        I do like the deck brace installation B)
                        Wayne Schutte PhdCSE BaSE BaEE. Australian, & damn proud of it YOUTUBE
                        @ 36" H&M Maritmo twin1512/1800 6S1P 88mph @ 40" drag hydro#1 twin 5692 12S1P .....always for fun @

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                        • twissted
                          Senior Member
                          • Jul 2012
                          • 867

                          #27

                          This is my tow rig. I will need to build a cool trailer so that I can enter it in the local parade this spring.
                          twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

                          Comment

                          • twissted
                            Senior Member
                            • Jul 2012
                            • 867

                            #28

                            I installed the latches to the hatch.

                            I polished the rudder. The paint needs more work. wet sand.
                            I also ordered more parts. Because It changed the shafts to 3/16 on the ends I need to order 3/16 drive dogs. I also ordered shaft savers and a new prop balancer. It is all comming from over seas so it will take a while to get. I think I will start on the body work. I also need to install the cooling lines and make the battery holders.
                            twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

                            Comment

                            • Rocstar
                              Joel Mertz
                              • Jun 2012
                              • 1509

                              #29
                              Originally posted by twissted
                              I polished the rudder. The paint needs more work. wet sand.
                              I also ordered more parts. Because It changed the shafts to 3/16 on the ends I need to order 3/16 drive dogs. I also ordered shaft savers and a new prop balancer. It is all comming from over seas so it will take a while to get. I think I will start on the body work. I also need to install the cooling lines and make the battery holders.
                              Didn't have to order from "overseas" ...Faster delivery...And you would get that warm fuzzy feeling from supporting a business that provides you this forum...just saying.
                              http://www.offshoreelectrics.com/pro...prod=oct-oc6dm
                              http://www.offshoreelectrics.com/pro...od=oct-oc468pb
                              "There's nothing else I really want to do other than get up and build boats." - Mike Fiore

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                              • twissted
                                Senior Member
                                • Jul 2012
                                • 867

                                #30
                                Yes I would have but I ordered everything from ebay and used my ebay bucks so I got everything for free. This is the only reason.
                                twissted from speed. Lead, fallow or get out of the way. Copy cats in back of the buss!!!

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