USS Blueback SS-581 recovered from North Lake, Groton Sub base

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  • QuarterMaster
    No one
    • Jul 2003
    • 607

    #1

    USS Blueback SS-581 recovered from North Lake, Groton Sub base

    ****FLASH TRAFFIC****FLASH TRAFFIC****FLASH TRAFFIC****

    After sitting submerged in some 8+ feet of water for 59 day's,the USS BLUEBACK has been recovered.

    This 1/96 Scale RC Submarine, manufactured by the now defunct SMALL WORLD MODELS (Dave Manley) was lost on Patrol September 10th 2016 while undergoing refit sea trials.
    This mostly stock model had some major repairs to the WTC including a shaft seal replacement.

    While at first indications to the cause of the loss may have been attributed to the repairs, it is now pointing to human error.
    Ballasted to heavy for an empty propel tank, followed by NOT insuring the tank was full prior to departure.

    The following is an excerpt from the email I received from Rich Kohlbrecher this AM:

    Ed,

    The Blueback was officially recovered at 8:10am this morning from the Sub Base.

    She was immediately transported to a secure shipyard for inspection.

    The square plate on the outer edge of her port rear dive plane was broken off but recovered. (This suggests damage was sustained in the front seat of the base pickup truck.) however, repairs are simple.

    The outer hull had areas of algae growth but was otherwise in good condition. The scopes are fine.

    The WTC was completely obscured by algae. After careful cleaning in one area it was determined that there was NO VISIBLE MOISTURE PRESENT in the WTC. The reactor core was not compromised .

    It should be noted that the high pressure air system (Propel) was completely empty. This discovery will, unfortunately, precipitate a board of inquiry regarding the fitness of the Commanding Officer at the time of the incident. Court Marshall proceedings may soon follow.

    Please find attached some classified salvage photos.

    Richie


    Many thanks to the Sailors of the US Sub Base, MWR, and of course Joe Oliver and Rich Kohlbrecher for her return.

    North Lake is not only the best running spot period, but the lake is drained each year for fools like me lol!

    "Sub " Ed

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    v/r "Sub" Ed

    Silent Service "Cold War" Veteran (The good years!)
    NEVER underestimate the power of a Sailor who served aboard a submarine.
    USS ULYSSES S GRANT-USS SHARK-USS NAUTILUS-USS KEY WEST-USS KRAKEN-USS PATRICK HENRY-HMS VENGEANCE-U25-SSRN SEAVIEW-PROTEUS-NAUTILUS
  • crueby
    Member
    • May 2015
    • 343

    #2
    Nice recovery! Its amazing that the NTSB report is out so fast!

    At least you have an authentic weathering job now...!

    Comment

    • salmon
      Treasurer
      • Jul 2011
      • 2342

      #3
      That is incredible and a great relief. The new weathering job as noted has a sense of authenticity that cannot be made, but experienced.
      As far as the court marshall, I believe due to your record it will be overlooked.
      Peace,
      Tom
      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

      • bigdave
        Junior Member
        • Feb 2003
        • 3596

        #4
        That is great news.
        Just an FYI.
        Stock Dumas type dog bone U joints do not come with stainless set screws.
        I always like to replace them with stainless. Good luck getting it out.
        BTW That is the largest rust outcrop on a set screw I have ever seen.
        It's always good to hear a story with a happy ending. BD
        PS
        They never did find your sub did they Tom?
        That was a not so happy ending.
        Last edited by bigdave; 11-09-2016, 04:19 PM.
        sigpic"Eat your pudding Mr Land"
        "I ain't sure it's pudden" 20K

        Comment

        • Ralph --- SSBN 598
          Junior Member
          • Oct 2012
          • 1417

          #5
          Stainless steel set screws.This week I was looking for a small spring.
          At the local hardware store they have those small draws full of various specialty parts.
          Brass bolts and screws.
          Springs, and furniture floor skids.
          And they have various sizes of stainless set screws in both standard and metric.

          Just yesterday, I replaced all the blask sttel set screw in the dog bone connectors and wheel collars.

          Far cheaper than ordering from McMasters.
          The parts are cheap enough but the $17 shipping they always seem to charge me is a bit much.
          50 4-40 stainless setscrews fit in a small zip lock bag of about 1.5" square and they send it in a 12"/12"/4" box.
          -------------
          Quick search give me this.
          Lowes Hardware https://www.lowes.com/search?searchTerm=set+screws
          Home Depot http://www.homedepot.com/s/set%2520screws?NCNI-5

          Comment

          • salmon
            Treasurer
            • Jul 2011
            • 2342

            #6
            Originally posted by bigdave View Post
            PS
            They never did find your sub did they Tom?
            That was a not so happy ending.
            You had to bring that up...WOW BD, I was almost done with therapy and behavioral modifications, I almost got the clearance to be set free from that tragic moment that forever will scar my RC Sub career. Anytime someone loses a sub what name gets brought up? Me.
            So to answer your question, no, not found........yet. One day I hope to get a similar call, after all it is a smaller lake and they every decade or so drain it. I can be patient. Sigh.
            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

            • bigdave
              Junior Member
              • Feb 2003
              • 3596

              #7
              Sorry Tom
              It was a sincere question.
              I had never heard if you had found it.
              But I loved your answer.
              I too know the sinking feeling (pun intended) you get in the pit of your sole when you command surface and nothing happens. It seems like an eternity, minutes seem like hours.
              But I was lucky. When my Seawolf went down at one of the Lake Redman events one of the crew was able to find it in about 5' of water. It had drifted 30' backwards from the point it dove at before hitting the bottom.
              The crew member actually stepped on it. To say I was relieved was an understatement.
              But I did get a very nice trophy for sinking. BD
              sigpic"Eat your pudding Mr Land"
              "I ain't sure it's pudden" 20K

              Comment

              • salmon
                Treasurer
                • Jul 2011
                • 2342

                #8
                BD You did ask a sincere question, I was just being a smarty pants, I enjoy laughing and making jokes. It was a life lesson and I certainly learned from my mistake. You got a trophy too? I got one for the longest run underwater. Really I did.
                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

                • Ralph --- SSBN 598
                  Junior Member
                  • Oct 2012
                  • 1417

                  #9
                  Does your trophy have a running clock to tell you how long your run was...is ? ;^)

                  Comment

                  • redboat219
                    Member
                    • Jan 2005
                    • 523

                    #10
                    Curious why there's algal growing on the surdace of the WTC when it's inside the hull where the sun doesn't shine...

                    Comment

                    • Ralph --- SSBN 598
                      Junior Member
                      • Oct 2012
                      • 1417

                      #11
                      A helpful hint... has worked for me...
                      --------------
                      Steel set screws in brass or bronze.
                      Spray with Liquid Wrench twice a day for two to three days.
                      The brass or bronze will let the liquid wrench penetrate and the steel screws will break free.
                      Use steady torque but not enough to crack the set screw.

                      Comment

                      • bigdave
                        Junior Member
                        • Feb 2003
                        • 3596

                        #12
                        That is why I liked your answer Tom.
                        Very SHAMATRIPANTZY!
                        I will try and get a photo of my trophy. It has a little hard hat diver on it.
                        Almost worth sinking a boat for. lol
                        I sank my Type 23 at Groton a few years back. (Shot down by another guy on the same freq)
                        But with the clear water you could see the sub on the bottom in the sand.
                        Bill L swam out and did a salvage. Those Subron4 boys are A-OK! BD
                        sigpic"Eat your pudding Mr Land"
                        "I ain't sure it's pudden" 20K

                        Comment

                        • QuarterMaster
                          No one
                          • Jul 2003
                          • 607

                          #13
                          Originally posted by bigdave View Post
                          That is great news.
                          Just an FYI.
                          Stock Dumas type dog bone U joints do not come with stainless set screws.
                          I always like to replace them with stainless. Good luck getting it out.
                          BTW That is the largest rust outcrop on a set screw I have ever seen.
                          It's always good to hear a story with a happy ending. BD
                          PS
                          They never did find your sub did they Tom?
                          That was a not so happy ending.
                          Dave,

                          They ARE stainless, in fact look close at the center one.

                          Now's it's a question of type. I was fairly sure I purchased TYPE 318 SS, which I used exclusively on all my 1:1 scale Sailing vessels.

                          I had in fact noticed some streaking even on them, granted it's a harsher saltwater environment.

                          I do purchase exclusively from McMaster Carr, but you never know what's actually tossed in the bag w/o testing. I see fake components (can you say China?) all the time in the PCB Assembly industry.

                          To be honest, and what I suspect, this man made lake has pumps, which we see by heavy glitching in certain areas.....AND I remember someone once saying it has a minimal chlorine content for harmful bacterial control, but that could be rumor.

                          While I'm sure the electronics are properly insulated to code, as statistically fresh water swimmer electrocution is much more common and deadly than saltwater swimmer electrocution (saltwater disperses the energy while the human body in freshwater becomes the conductor due to the higher resistance of fw) even MINOR electrical currents can create galvanic corrosion. I will NEVER swim off a private freshwater dock that has power REGARDLESS of the owners claim to safety.

                          Again, I could be 100% wrong here, but those ARE stainless, do it on all my boats. I could say low oxygen level affecting the passivation, (we see it on SS shafts in the shaft housing that aren't regularly inspected) but that usually is crevice corrosion and creates pitting, takes longer too.

                          Also, why on the shaft, and NOT back on the rudder stock to the right? Is there some circuit still via the shaft to the internals? Got me.

                          I'll take a closer look post mortem when Rich brings it Saturday.

                          FWIW, I've seen aluminum I/O units having been corroded in weeks at a dock because fellow boaters didn't ground their respective Shore Power connections properly. Just a few volts is enough.
                          Last edited by QuarterMaster; 11-10-2016, 12:17 PM.
                          v/r "Sub" Ed

                          Silent Service "Cold War" Veteran (The good years!)
                          NEVER underestimate the power of a Sailor who served aboard a submarine.
                          USS ULYSSES S GRANT-USS SHARK-USS NAUTILUS-USS KEY WEST-USS KRAKEN-USS PATRICK HENRY-HMS VENGEANCE-U25-SSRN SEAVIEW-PROTEUS-NAUTILUS

                          Comment

                          • QuarterMaster
                            No one
                            • Jul 2003
                            • 607

                            #14
                            Originally posted by salmon View Post
                            BD You did ask a sincere question, I was just being a smarty pants, I enjoy laughing and making jokes. It was a life lesson and I certainly learned from my mistake. You got a trophy too? I got one for the longest run underwater. Really I did.
                            Lost my Krick U-25 back in '90. Do I get a shot at the Longest run lol???

                            Technically I can still say I lost only one, the Krick. The 581 is "Sub" Eddies boat and he was driving lol!! But I can say this loss is attributed by NOT following the "Pre-Underway Checklist" I had established after the loss of the U25. Shame on me, a SubVet who lives by checklists. (Can take the boy out of the boat, but not the boat out of the boy)

                            I WILL NOT make THAT mistake again. I don't care how excited I am to see a model underway.

                            Now the question is...who else here has a "Pre-Underway Checklist" and what do you do?
                            Mine even includes "Post underway maintenance"
                            v/r "Sub" Ed

                            Silent Service "Cold War" Veteran (The good years!)
                            NEVER underestimate the power of a Sailor who served aboard a submarine.
                            USS ULYSSES S GRANT-USS SHARK-USS NAUTILUS-USS KEY WEST-USS KRAKEN-USS PATRICK HENRY-HMS VENGEANCE-U25-SSRN SEAVIEW-PROTEUS-NAUTILUS

                            Comment

                            • bigdave
                              Junior Member
                              • Feb 2003
                              • 3596

                              #15
                              Stainless! Wow!
                              But there is stainless and stainless. As you know.
                              I get mine from McMaster too. I was buying some for a while from them that would strip out easy.
                              The ones I use now do not. Never had them in the water as long as you to see a rusticle like that.
                              I usually add a drop of Stuph or Corrosion X to the outside to protect it too.
                              I just figured it was a good chance to add the tip on the set screws.
                              Good follow up on the HD & Lowes tip Ralph.
                              BTW I remember hearing that North Lake was chlorinated too. BD
                              sigpic"Eat your pudding Mr Land"
                              "I ain't sure it's pudden" 20K

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