Jimmy Carter - 1/144

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  • DMTNT
    Commander
    • Jun 2018
    • 297

    She dives! She surfaces! She hauls butt and handles like ****!

    I am very encouraged. I used the backyard pool and the thermometer was showing approx 33°. I am guessing that would generally qualify as being too cold to run normally, but it is all I have to work with at the moment. There were a couple of instances of the air induction line slipping off its brass nipple and a control arm working itself loose, which I think can both probably be attributed to the cold.

    How does the SD hold up to extreme conditions?

    At at this point, I am happy enough to paint it. Stay tuned!

    -Brady
    Dead men tell no tales...

    Comment

    • vital.spark
      Commander
      • May 2010
      • 274

      Brady,

      How did she turn? My Seawolf takes about 18' to turn 180 deg. That's with an extension taped on to the bottom rudder! Yes, she was a Rocket!!

      Regards,

      Myron

      Comment

      • DMTNT
        Commander
        • Jun 2018
        • 297

        Originally posted by vital.spark
        Brady,

        How did she turn? My Seawolf takes about 18' to turn 180 deg. That's with an extension taped on to the bottom rudder! Yes, she was a Rocket!!

        Regards,

        Myron
        Hi Myron,

        In a word? Awful!

        My pool is kidney-bean shaped. Probably about 13 feet wide at the ends and maybe about 10 ft wide in the middle. Submerged, it barely eeked out a 180° turn at the end. This is using David’s rudders with no additions. On the surface, there was a lot of backing up and straightening out.

        I never expected it to perfom well, but that is ok! I am still having fun.
        Dead men tell no tales...

        Comment

        • vital.spark
          Commander
          • May 2010
          • 274

          Find a bigger pool and enjoy as I have!

          Comment

          • Subculture
            Admiral
            • Feb 2009
            • 2119

            Fixed shroud around the pumpjet hampers manoeuvrability.

            if you want a very agile boat, look for subjects with a short aspect and preferably control surfaces in the prop wash. Good examples of scale military craft which are fun to drive-

            Holland boats
            Seehund
            X-craft
            Walther boats
            Delphin
            Albacore
            Skipjack
            212 class
            Valiant/Churchill classes
            Kilo

            Comment

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

              Originally posted by DMTNT

              Hi Myron,

              In a word? Awful!

              My pool is kidney-bean shaped. Probably about 13 feet wide at the ends and maybe about 10 ft wide in the middle. Submerged, it barely eeked out a 180° turn at the end. This is using David’s rudders with no additions. On the surface, there was a lot of backing up and straightening out.

              I never expected it to perfom well, but that is ok! I am still having fun.
              Remove the lower scale rudder and replace it with a scratch-built unit of about 3X the area. Ugly as hell, but more maneuverable.



              David
              Who is John Galt?

              Comment

              • DMTNT
                Commander
                • Jun 2018
                • 297

                Originally posted by He Who Shall Not Be Named

                Remove the lower scale rudder and replace it with a scratch-built unit of about 3X the area. Ugly as hell, but more maneuverable.



                David
                And compromise scale appearance / accuracy?? Never! Shame on you, sir. LOL. This big chungus is just destined for a larger pond. I am ok with that.

                Curious to hear your thoughts on operating in extreme cold and how it might effect the SD.
                Dead men tell no tales...

                Comment

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

                  Originally posted by DMTNT

                  And compromise scale appearance / accuracy?? Never! Shame on you, sir. LOL. This big chungus is just destined for a larger pond. I am ok with that.

                  Curious to hear your thoughts on operating in extreme cold and how it might effect the SD.
                  Yeah, yeah. Slap me around till you're happy. I don't like rudder cheats like that either. However, sometimes you just have to be pragmatic about it: You want a model that runs well or is a slave to scale? Pick one!

                  The one great sin against God in my book is having to increase the lower rudder area on the beautiful ALFA models. SEAWOLF? Who cares.... … that thing was born ugly!

                  On occasion I had to break surface ice in order to launch and recover r/c model submarines. And that's with both propellant and SAS based ballast blow sub-systems. Temperature (particularly low temperature) has not been an operational issue in my experience. The only degradation is the increased resistance within the radial and longitudinal seals as the grease/oil hardens with drop in temperature. A bit more work for servos and propulsion and LPB motors, but not enough to matter worth a tinker's damn. And what structure creep resulting from materials different expansion rates has not evidenced in any leakage -- what creep exists between bulkheads and Lexan is absorbed by the elasticity of the bulkhead O-rings.

                  David
                  Last edited by He Who Shall Not Be Named; 02-13-2019, 01:48 PM.
                  Who is John Galt?

                  Comment

                  • DMTNT
                    Commander
                    • Jun 2018
                    • 297

                    Originally posted by He Who Shall Not Be Named

                    Yeah, yeah. Slap me around till you're happy. I don't like rudder cheats like that either. However, sometimes you just have to be pragmatic about it: You want a model that runs well or is a slave to scale? Pick one!

                    The one great sin against God in my book is having to increase the lower rudder area on the beautiful ALFA models. SEAWOLF? Who cares.... … that thing was born ugly!

                    On occasion I had to break surface ice in order to launch and recover r/c model submarines. And that's with both propellant and SAS based ballast blow sub-systems. Temperature (particularly low temperature) has not been an operational issue in my experience. The only degradation is the increased resistance within the radial and longitudinal seals as the grease/oil hardens with drop in temperature. A bit more work for servos and propulsion and LPB motors, but not enough to matter worth a tinker's damn. And what structure creep resulting from materials different expansion rates has not evidenced in any leakage -- what creep exists between bulkheads and Lexan is absorbed by the elasticity of the bulkhead O-rings.

                    David
                    Hmm, that is all good to know. Also, of course you have done actual under-ice operations with an RC sub. Probably hardened the damn sail too!

                    There is always a chance that the operator was the one affected by the cold. Maybe I just failed to seat the induction line properly. The peanut settled gently on the bottom and would not recover without the aid of a net. Thankfully it was just in a 10ft pool and not somewhere murkier.

                    Stay tuned.

                    -Brady
                    Dead men tell no tales...

                    Comment

                    • trout
                      Admiral
                      • Jul 2011
                      • 3545

                      I wonder......When I used to go flyfishing in winter, ice would form on my eyelets. When surfaced, could ice prevent the float from closing completely?
                      If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.

                      Comment

                      • vital.spark
                        Commander
                        • May 2010
                        • 274

                        On the Seawolf, I just tape an extension on the lower rudder using 3M blue painters tape when running and remove after the run!

                        Comment

                        • DMTNT
                          Commander
                          • Jun 2018
                          • 297

                          I have got to say, I am pretty damn pleased how this turned out.

                          Comments & criticism welcome, as always.

                          Click image for larger version

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                          Dead men tell no tales...

                          Comment

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


                            Looks like good, clean kit assembly there. How about some close-up shots of the exterior and interior. I want to see how you worked out the linkage to the bow planes. How were the markings achieved?

                            And lets have some video of this thing on and under the water. And take pictures of you shop (don't clean it, take them raw!) -- I find a man's working space to be the true picture into his state-of-mind.

                            And world peace …..... do something about that too!

                            David
                            Who is John Galt?

                            Comment

                            • HardRock
                              Vice Admiral
                              • Mar 2013
                              • 1609

                              "I find a man's working space to be the true picture into his state-of-mind." I'm just scurring off to clean up my shed. No reason; just cleaning etc etc, mumble, mumble. PS That sub looks grerat Brady, (but it would look AWSOME in 1/96! Just sayin.

                              Comment

                              • DMTNT
                                Commander
                                • Jun 2018
                                • 297

                                Thank you for the compliments, gents. I am out of town on the East Coast for the week, but when I get home I will provide some more detail.

                                DM - Evidance that I am too single for my own good, my dining room has served as my primary workspace on this project. To my credit though, it gets plenty messy.

                                Markings are from 4 of the Yankee Modelworks 1/144 Seawolf sets. I needed like 8 of those little PROJ markings! Also, the real CARTER has some draft markings amidships that don’t make any sense. At least she does in one photo I saw. Somehow 41 is stenciled below 34 in an immediately adjacent row.


                                Click image for larger version

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                                Yes I did assemble a kit. I stood on the shoulders of brilliant men and goddam*it, I built a submarine I can be proud of. A lot of credit goes to you bums, and for that, I thank you.

                                Stay tuned.


                                -Brady
                                Last edited by DMTNT; 02-18-2019, 09:07 AM.
                                Dead men tell no tales...

                                Comment

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