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Scratch Build Project 685 Plavnik K-278 Komsomolets NATO: Mike

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  • Thankyou David,

    As mentioned earlier I would now enter the nitty gritty stage of building the finished product. This write up may be useful if people don't get my drawings, photos or plain old explanation that I have put into my instruction manual. Yes David your manuals are very thorough. I am actually in the process of getting hold of ones that Hardrock has accumulated in his recent build efforts to see what sort of content other people cover in their manuals. I am very intrigued by his build of the Soviet Uniform class. That thing is coming along soo fast!!

    Anyway back to the build up. The tail fins take the most work and are quite fiddly. I have devoted probably most of my build time to getting the tail configured. It is the business end of the boat after all and has taken the most amount of development with appendages and the like. One both top and bottom hull had been sanded back and were level on the board I would look at the placement of the rear fins. I marked out the placement of the fixed planes. On the top and bottom mould I have moulded an outline of where they go. You take a file and cut out the profile of the square section left over from the sprue. Only half a square because the top hull be the other half. File out a half round for the pivot. Placing a brass rod through both and getting them level relative to the edges of the bottom hull is crucial. I did find that the filleting did not follow exactly the line of the hull. This was a mild inconvenience and something that the modeller who embarks on this kit will find. Sorry , However easily fixed. Either sand back a bit at front of the plane or fill in the back with filler. I did the latter. gives you slightly more surface area. This is shown in the photos.

    Once everything is nice and level you can glue everything in. You may wish to wash urethane parts first then sand back and primer the rear planes. I have to get used to this, as this is the first model I have ever built from the outset with production in mind and this first model is built with all production parts. No wooden appendages here! I used a couple of drops of super glue and then attacked the rear of the planes with filler and sanded back. After this comes the fiddly work of designing and fabricating the rear plane horn and pushrods. I find this finicky and its up there in popularity with laying up the master mould. (Check earlier rant..) For my pushrod horns I actually use a tiny rectangular cut out section of PCB (Printed circuit board). I cut two holes and file one out a little rectangular to take the flattened filed end section of the pivot and the other for the du - bro pushrod. I solder the side with the thin layer of zinc or copper to the brass pivot. Works well.

    For the Rudder I use brass sheet cut and bend
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    into a "U" shape and have three holes drilled. Two for the top and bottom rudder and the last one for the pushrod. A slight bend halfway sees enough room for the pivoting bracket to get past the shaft. Once again soldered on.

    anyway enough for now...

    David H

    Attached Files

    Comment


    • Great work Dave. I've gathered up some manuals for you. I'll be at the farm on 2 and 3 Jan if you'd like to drop in? I'm planning to take the Oscar and Soryu for a run in the dam.

      Comment


      • David, Have you got any info on the props for the Mike? Heres a couple of pictures that you may or may not have seen. Appears to be two(2) three bladed props but not counter-rotating.
        IT TAKES GREAT INTELLIGENCE TO FAKE SUCH STUPIDITY!

        Comment


        • THIS is new to me! I first became aware of the tandem propellers when that VICTOR-3 got caught up in a Destroyer's towed cable and they had to trim the boat as-end-high to give the deck crew a chance to unfoul the cable that got wrapped around the upper vertical stabilizer-rudder -- a procedure that put the propellers up into the air for god and everyone to look at.

          The off-set of the two propellers on the long lost MIKE is what interested me -- not the uniform stagger stated by most sources about the VICTOR-3's wheels. Different. Good stuff. Thanks. I wonder if they share a common hub diameter?

          M
          "... well, that takes care of Jorgenson's theory!"

          Comment


          • Perhaps your Victor 3 episode is what this picture is all about, although after the fact.
            IT TAKES GREAT INTELLIGENCE TO FAKE SUCH STUPIDITY!

            Comment


            • Mark I have a picture that gives the impression there must be 2x 4 blades?
              Grtz,
              Bart

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              Practical wisdom is only to be learned in the school of experience.
              "Samuel Smiles"
              http://scale-submarine.com/index.html

              Comment


              • Bart, If that is a picture of the same subject, it looks like you are right. Perhaps they used the same setup as on the Victor 3.
                IT TAKES GREAT INTELLIGENCE TO FAKE SUCH STUPIDITY!

                Comment


                • Originally posted by greenman407 View Post
                  Bart, If that is a picture of the same subject, it looks like you are right. Perhaps they used the same setup as on the Victor 3.
                  Same subject Mark.
                  Grtz,
                  Bart
                  Practical wisdom is only to be learned in the school of experience.
                  "Samuel Smiles"
                  http://scale-submarine.com/index.html

                  Comment


                  • Originally posted by He Who Shall Not Be Named View Post
                    THIS is new to me! I first became aware of the tandem propellers when that VICTOR-3 got caught up in a Destroyer's towed cable and they had to trim the boat as-end-high to give the deck crew a chance to unfoul the cable that got wrapped around the upper vertical stabilizer-rudder -- a procedure that put the propellers up into the air for god and everyone to look at.

                    The off-set of the two propellers on the long lost MIKE is what interested me -- not the uniform stagger stated by most sources about the VICTOR-3's wheels. Different. Good stuff. Thanks. I wonder if they share a common hub diameter?

                    M

                    Maybe we can buy a scrap one and measure it David.
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                    Practical wisdom is only to be learned in the school of experience.
                    "Samuel Smiles"
                    http://scale-submarine.com/index.html

                    Comment


                    • You two have come up with solid gold stuff! Kevin Rimrodt and I have had a hard-on for the VICTOR-3 for decades -- this only brings that project a little closer to reality. Thankumundo!

                      M
                      "... well, that takes care of Jorgenson's theory!"

                      Comment


                      • You ask......we dance.
                        This is all I have on the VICTOR props......maybe Mark has some other stuff.

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                        @ Davidh I will stop with hacking your build report.

                        @HWSNBN if you start building that VICTOR III before you finish my SD I will be on the first plane to the USofA..........(probably to assist you in building that VICTOR III)

                        Grtz,
                        Bart
                        Practical wisdom is only to be learned in the school of experience.
                        "Samuel Smiles"
                        http://scale-submarine.com/index.html

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                          Hello David, Bart and the Greenman.

                          Heck Bart, I'm just stoked that someone responded.. useful subject to hijack with and is where I'm heading anyway...

                          I've been away for a couple of days with the family up north near a place called Tamworth. Anyway before then I got a lot of stuff done over the new year so I will cover all that. Mike is coming along really nicely.

                          Bart, I have been thinking about the propeller and at the moment don't have a scale version of it. The two main photos that you sent me I have seen and they are certainly interesting. However the two photos that you have posted of the mikes propeller looking back at them from further along the stern, I have not seen before. Hardrock was convinced that they were contra rotating however you can see they ain't. They certainly are different. As mentioned earlier in my build I find it frustrating that I cannot get more photos of this boat. Yes she was lost over 25 years ago, however there must be a vault somewhere in Severodvinsk or somewhere with a ton of construction photo's and those of her in service. I have been looking through all the websites with tons of pics of other Russian boats in dry dock and think that surely there must be heaps of photo's of this boat in dock. Why can't we get hold of them? I emailed the St Petersburg Submariners Club and the Rubin design bureau and their solution was simply to ignore me. Annoying!!

                          I don't have a copy yet and plan to produce a design based on those photo's however this will take time. After looking at your scratch build on the Akula, Bart I was tempted to see if you had a propeller that may have been scale that I could buy off you however I intend to make a master and then mould it in polyurethane and add it to the kit I am developing. With my new lathe I should be able to turn something up. I always imaged the Mike as having a scimitar propeller, It just looks like the kind of sub that should have one. Yet it has a distinctive conventional bladed propeller. The initial boat will hit the water with a conventional 5 bladed propeller that will make people cringe I'm sure. Give me time on that one.

                          I'll be honest the Akula has never really done it for me, sorry Bart, but the Victor III, I have always loved. It's a bit like the Messerschmitt Bf Me109. Never my favourite, but the FW 190, yeah baby!!
                          I'm sure David will one day do a killer version of the Vic III.

                          Ok, to the build.

                          I have aligned and glued in the horizontal rear planes. The horns are in place and then I have fashioned the vertical rudder bracket. I mentioned this earlier and it was pretty much ready to install. However before I install this I am looking at the front end of the boat. I always do a separation at the bow underneath. So the front of the bow lower hull is joined to the top hull section. Before I do this I need to mount the aluminium plate that will secure the top and bottom hulls together. I have a rectangular section of aluminium strip that I have drilled a hole in one end. I then put a thread in this hole for the 4 mm screw that will hold the two halves together. I then mark out a dividing line on the inside of the bottom hull towards the bow and resin down the front of the rectangular strip with the hole rearward across the line. I drill a small pilot hole through the metal strip through the fibreglass underneath. On the outside the line corresponds with a weld line. I then proceed to align up the two hull halves and then glue the bow top and bottom sections till the point where the lower line meets the upper hull. I then lay down some light glass cloth and resin in a corridor marked out by tape. Once this is done I can then cut along the line that cuts across the metal strip and this then joins the lower bow section to the upper hull.

                          There would be sanding and filling along the front however the stern once again has caught me in it's tractor beam... I can align the top and bottom and make a similar cut just in front of the rear upper rudder so that its easier to get the rudder bracket set up. I need to make sure that the pivots for the top and bottom rudder don't bind and that the rear upper hull section aligns with the hull forward of the stern planes. Fun fun...

                          David H




                          Attached Files

                          Comment


                          • Can some one tell me how to get these pictures to be bigger because these ones ain't doin mike justice...

                            Dave

                            Comment


                            • David, you're *****ing about the lack of cooperation of MIKE document holders the same as you did about the SSBN document holders. Those custodian's (and here I'm talking about the yards of record, or government agencies, not private 'collectors' of source material) are professionals working to internal classifications, mandates and protocols. They won't give up ANY information that has a chance of risking their jobs. Trust me: I've been sleuthing information all my adult life. And it once got me investigated by the NIS (Navel Investigative Service), they charged me with 'unauthorized disclosure of classified information'. Remember the golden rule of bureaucracy: It's so much safer, and easier, to say NO than YES.

                              So, requesting nuclear submarine information from a contractor or government agency ... ain't no way in hell they are going to help a common citizen, particularly if that citizen is of foreign allegiance.

                              Thank God for the internet and guys like Bart, Mark, and Gantu.

                              As to the pictures: transfer your pictures to a 'host' and post the pictures URL's to your text -- that's how I get the big format pictures to show at this forum.

                              M
                              "... well, that takes care of Jorgenson's theory!"

                              Comment


                              • Originally posted by Davidh View Post
                                The initial boat will hit the water with a conventional 5 bladed propeller that will make people cringe I'm sure. Give me time on that one.
                                No shortcuts David.....fabricate the eight-bladed tandem prop.....that's the only way to go.

                                Originally posted by Davidh View Post
                                I'll be honest the Akula has never really done it for me, sorry Bart
                                No offence taken

                                Grtz,
                                Bart
                                Practical wisdom is only to be learned in the school of experience.
                                "Samuel Smiles"
                                http://scale-submarine.com/index.html

                                Comment

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