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Type XXXI U-2540 1:72 Scale Sub Build

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  • #16
    Originally posted by rwtdiver View Post

    Hi David!

    How did I know that you would be the one with the answers!!:-))

    Thank you very much for the great information. I sure do see the similarities in the photo of Foxtrot and the Type XXl sterns! Thank you for the photos David! Not sure what I am going to do at this point.

    Rob
    "Firemen can stand the heat"
    You can follow the German Type-21 imprint on almost all Soviet post-war designs on up to and including their NOVEMBER's. And a big part of our post-war designs was borrowed from the German boats as well.

    Clever people, those Germans... just don't ever let them get on top of you! They love to goose-step along streets not their own. Tulips Shall Grow (Madcap Models No. U1-5) - Bing video

    David
    Resident Luddite

    Comment


    • #17
      Originally posted by He Who Shall Not Be Named View Post

      You can follow the German Type-21 imprint on almost all Soviet post-war designs on up to and including their NOVEMBER's. And a big part of our post-war designs was borrowed from the German boats as well.

      Clever people, those Germans... just don't ever let them get on top of you! They love to goose-step along streets not their own. Tulips Shall Grow (Madcap Models No. U1-5) - Bing video

      David
      Thanks for the Bing video!

      Since I have been in the hobby I have certainly noticed how German design and engineering has influenced submarine technology as well as other endeavors they pursued!

      Rob
      "Firemen can stand the heat"

      Comment


      • #18
        Ultimately the clever little chap from County Clare had the right idea, though.
        Time to DIVE IN! https://www.facebook.com/groups/133360626703083/

        Comment


        • #19
          I at least have a possible idea as to where I could make the joint separation to gain access to the WTC (SD)!

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          I would be using the existing SD that I use on my HL Hunley! I could design a gear box similar to (David M.) design. Link up control surfaces with magnets, and use dog bones for the prop shafts!

          Rob
          "Firemen can stand the heat"

          Comment


          • #20
            Originally posted by Subculture View Post
            Ultimately the clever little chap from County Clare had the right idea, though.
            I should have known! (I had to look it up). John Holland. Sneaky, Andy... very sneaky.

            And, you're right!

            David
            Resident Luddite

            Comment


            • #21
              Originally posted by He Who Shall Not Be Named View Post

              I should have known! (I had to look it up). John Holland. Sneaky, Andy... very sneaky.

              And, you're right!

              David
              You guys have even got my wife (Masters Degree in Library Science) researching John Holland! She loves history! This guy has lots of submarine history!

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              Very interesting gentleman for sure!

              Rob
              "Firemen can stand the heat"

              Comment


              • #22
                I know this subject matter has been covered before! But I am going to be doing a lot brass work on the Type XXl. And I realize the brass will need some prep work before it gets applied to the model and the finishing work after!

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                I know that it should be cleaned with laquer thinner, and then a bath in some sort of acid! I am thinking vinegar would do the job!? I have heard that some like to use a more aggressive acid! Any input would be appreciated! Thank you!

                Rob
                "Firemen can stand the heat"

                Comment


                • #23
                  Ferric Chloride.

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                  Resident Luddite

                  Comment


                  • #24
                    Originally posted by He Who Shall Not Be Named View Post
                    Ferric Chloride.

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                    Thanks David,

                    I see you have the brass installed before the acid wash?! Is that the best way to do it? I thought I would just dip the entire sheet into a bath of the acid, and then clean it and cut the pieces out and install!?

                    Rob
                    "Firemen can stand the heat"

                    Comment


                    • #25
                      Originally posted by rwtdiver View Post

                      Thanks David,

                      I see you have the brass installed before the acid wash?! Is that the best way to do it? I thought I would just dip the entire sheet into a bath of the acid, and then clean it and cut the pieces out and install!?

                      Rob
                      "Firemen can stand the heat"
                      Using the Ferric Chloride acid to 'pickle' the brass surface is done to enhance the adhesion of primer later.

                      You're going to re-apply the acid (it's job to make the surface pitted to afford better mechanical tooth to the eventual primer coat) after you inlay the brass onto the models surface anyway, as you'll be abrading away excess glue and Bondo after fairing in the brass to the models surface, necessitating re-pickling with acid anyway.

                      Scrub off the photo-resist from the brass -- lacquer thinner and a green abrasive pad -- while it's still in sheet form; inlay the brass pieces onto the model; fair in with glue and Bondo; Abrade away excess glue and Bondo till the inlay work is flush with the models surface; pickle the brass; prim; paint; sing my praises!

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                      David
                      Resident Luddite

                      Comment


                      • #26
                        David,

                        As usual, I am at a total loss for words as to your expertise, deployment of patience, and methodical work to achieve perfection in everything you do!!!

                        Thank you very much again for taking the time to share your fantastic work in description, as well as the wonderful photo guides to show how it's done! I will struggle with frustration, patience, and total wanting to walk away from this project just trying to achieve any portion of the kind work that you do!

                        Thank you again David! You are an inspiration for sure!

                        Rob
                        "Firemen can stand the heat"

                        Comment


                        • #27
                          Some progress being made on my Type XXXl U-2540!

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                          The hull is now put together! This boat will not be put to the water! I am going to build the U-2540 as a static display only! I have a lot of brass etching work to do on this mode, and it will be a real learning process for me for sure!

                          Rob

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                          • #28
                            Sail's on backwards. Duh!
                            Resident Luddite

                            Comment


                            • #29
                              Originally posted by He Who Shall Not Be Named View Post
                              Sail's on backwards. Duh!
                              Just checking to see who is awake! I knew you would be on it!

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                              Rob

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                              • #30
                                Check Sat!
                                Resident Luddite

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