My 1:77 Scale Disney Nautilus Build

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  • He Who Shall Not Be Named
    Moderator
    • Aug 2008
    • 12253

    #31
    Originally posted by SubHuman
    I'm thinking of trying to lay up a new hull in epoxy fiberglass with a cast lower section. Would be a hybrid fabrication technique, but it would vastly reduce the weight above the waterline. Not many know, but those hulls are nominally 1/4" thick!
    So thick that unless you employ heroic measures to reduce the displacement of above waterline structures you're ballast tank will have to be unreasonably large.

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    Who is John Galt?

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    • rwtdiver
      Vice Admiral
      • Feb 2019
      • 1768

      #32
      Originally posted by He Who Shall Not Be Named

      So thick that unless you employ heroic measures to reduce the displacement of above waterline structures you're ballast tank will have to be unreasonably large.

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      Oh Man!

      Before I have to go this route, I think I will try the SD that came with the kit first! I thank you David for posting up those scary photos!

      Rob
      "Firemen can stand the heat"

      Comment

      • RCSubGuy
        Welcome to my underwater realm!
        • Aug 2009
        • 1768

        #33
        Your SD will work perfectly fine. I've built a dozen of these with the standard 212 SubDriver and they work perfectly in terms of ballast displacement. Fortunately, the Nautilus has a very tiny freeboard (waterline is probably only 1/4" down from the deck. In the movie, she could emerge so that the waterline was just at the seam between the salon blister and hull, but at that height, the skiff was fully dry and couldn't be launched.


        Bob

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        • rwtdiver
          Vice Admiral
          • Feb 2019
          • 1768

          #34
          Originally posted by SubHuman
          Your SD will work perfectly fine. I've built a dozen of these with the standard 212 SubDriver and they work perfectly in terms of ballast displacement. Fortunately, the Nautilus has a very tiny freeboard (waterline is probably only 1/4" down from the deck. In the movie, she could emerge so that the waterline was just at the seam between the salon blister and hull, but at that height, the skiff was fully dry and couldn't be launched.

          Bob,

          Thank you very much for that information! I truly do not understand the total operation of these boats! But I am trying my best to take it all in and learn and understand why they do what they do!

          Rob
          "Firemen can stand the heat"

          Comment

          • rwtdiver
            Vice Admiral
            • Feb 2019
            • 1768

            #35
            Today I worked on the stern section of the Nautilus!

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            Installed the support rings, and the brass tube for the rudder linkage!

            Rob
            "Firemen can stand the heat"
            Attached Files

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            • rwtdiver
              Vice Admiral
              • Feb 2019
              • 1768

              #36
              With considerable amount of fitting and refitting I have the rudder installed and ready to fabricate and tie in the linkage!

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              I have run into a little problem with the Sub Driver that came with my Nautilus kit! All of the control linkages come from the top of the cylinder! If you use Nautilus Drydocks YouTube build series on this Nautilus you will see the linkages come out of the cylinder from the bottom!

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              This will certainly make the installation of the rudder control, and the prop power and control system a real challenge! Well people! Welcome to the world of RC submarine building! No Problem! It will certainly require a lot of creative thinking and design work, but somehow I WILL figure out a way to stuff all that mechanism into that small stern area, and have it all wok flawlessly!

              Rob
              "Firemen can stand the heat"

              Comment

              • He Who Shall Not Be Named
                Moderator
                • Aug 2008
                • 12253

                #37
                Originally posted by rwtdiver
                With considerable amount of fitting and refitting I have the rudder installed and ready to fabricate and tie in the linkage!

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                I have run into a little problem with the Sub Driver that came with my Nautilus kit! All of the control linkages come from the top of the cylinder! If you use Nautilus Drydocks YouTube build series on this Nautilus you will see the linkages come out of the cylinder from the bottom!

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                This will certainly make the installation of the rudder control, and the prop power and control system a real challenge! Well people! Welcome to the world of RC submarine building! No Problem! It will certainly require a lot of creative thinking and design work, but somehow I WILL figure out a way to stuff all that mechanism into that small stern area, and have it all wok flawlessly!

                Rob
                "Firemen can stand the heat"
                Rotate the motor-bulkhead 180-degrees.

                Fixypoo!...
                Who is John Galt?

                Comment

                • rwtdiver
                  Vice Admiral
                  • Feb 2019
                  • 1768

                  #38
                  Originally posted by He Who Shall Not Be Named

                  Rotate the motor-bulkhead 180-degrees.

                  Fixypoo!...
                  OH MY GOD! How did I miss that! I see now the ballast servo is not part of the motor bulkhead!! David ounce again you come through! If I could only find a place to hide! My apology to Nautilus Drydocks (Bob Martin and David) I really made a BIG XXX of myself this time! Thank you David! Another lesson learned! WOW!

                  Rob
                  "Firemen can stand the heat"
                  Last edited by rwtdiver; 05-18-2021, 03:16 PM.

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                  • rwtdiver
                    Vice Admiral
                    • Feb 2019
                    • 1768

                    #39
                    Today I worked on the prop and its installation on to the shaft. I also installed the linkage from the prop adjuster!

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                    This photo shows the prop in a slight upward vertical position which will aide along with the ballast system to achieve diving!

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                    This photo shows the prop in a slight downward position which in turn will aid along with the ballast system to achieve surfacing! Ounce the linkages are cut to size and hooked up to the SD the shaft movement will be some what more enhanced to achieve upward and downward movements!

                    Rob
                    "Firemen can stand the heat"

                    Comment

                    • He Who Shall Not Be Named
                      Moderator
                      • Aug 2008
                      • 12253

                      #40
                      Originally posted by rwtdiver

                      OH MY GOD! How did I miss that! I see now the ballast servo is not part of the motor bulkhead!! David ounce again you come through! If I could only find a place to hide! My apology to Nautilus Drydocks (Bob Martin and David) I really made a BIG XXX of myself this time! Thank you David! Another lesson learned! WOW!

                      Rob
                      "Firemen can stand the heat"
                      Not at all, sir. My flat forehead is a consequence of one too many palm slaps after just such a 'eureka' moment of stunning brilliance. All to often the answer is as simple as a half turn of something.

                      David
                      Who is John Galt?

                      Comment

                      • rwtdiver
                        Vice Admiral
                        • Feb 2019
                        • 1768

                        #41
                        Originally posted by He Who Shall Not Be Named

                        Not at all, sir. My flat forehead is a consequence of one too many palm slaps after just such a 'eureka' moment of stunning brilliance. All to often the answer is as simple as a half turn of something.

                        David
                        Thanks David! Sometimes I just push a little to hard to get things done, and then I start messing up! Need to slow it down and think things through totally!

                        Rob
                        "Firemen can stand the heat"

                        Comment

                        • rwtdiver
                          Vice Admiral
                          • Feb 2019
                          • 1768

                          #42
                          Tonight I worked on the rudder control system on my Nautilus! Trial & error procedures here!

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                          Anytime you have a lot of turns and bends, it does take time to get it right! I do have some clean up work and then this portion is complete!

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                          • rwtdiver
                            Vice Admiral
                            • Feb 2019
                            • 1768

                            #43
                            This afternoon I was able to complete another mech. hook up on the Nautilus!

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                            My little 2' X 4' building bench is getting a little crowded! I do envy you guys that have really nice building shops! But I make it work! So enough complaining!

                            I finished up the rudder control linkage, and the linkage that will control the vertical up and down of the prop shaft. And thanks to David for setting me on tract with the sub driver! Like turning the motor compartment end cap to make it all line up so I got straight shot to my controls! "Thanks David"

                            I have one more set up to do on the sub driver, and that is the prop shaft hook up system. Straight shot should be a piece of cake!! I want to finish up all the wiring and ballast work on the sub driver. and do a leak test and then the final run up. Then we can go onto the electrical lighting system and the final finish work! Light at the end of the tunnel on this project!! It's been a real fun and challenging project for me, and I have been learning a lot!

                            Rob
                            "Firemen can stand the heat"

                            Comment

                            • RCSubGuy
                              Welcome to my underwater realm!
                              • Aug 2009
                              • 1768

                              #44
                              Awesome work, Rob. Loving this

                              Comment

                              • rwtdiver
                                Vice Admiral
                                • Feb 2019
                                • 1768

                                #45
                                Originally posted by SubHuman
                                Awesome work, Rob. Loving this
                                Thanks Bob!

                                Made some additional headway today on the stern mechanics of the Nautilus!

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                                Got universal joint and the dog bone assembly put together, and it lined just perfect. Anyone building this model. make sure to look at Nautilus Drydocks (Bob Martins) build videos. They have been a great help for me in building the Nautilus!

                                Rob
                                "Firemen can stand the heat"

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