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Can anyone shed light on what this equipment is?

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  • Can anyone shed light on what this equipment is?

    Looking to understand what the hump / raised deck and semi dome is on the Trafalgar class about halfway along the deck aft of the sail.



    Thanks

    John
    Attached Files
    John Slater

    Sydney Australia

    You would not steal a wallet so don't steal people's livelihood.
    Think of that before your buy "cheap" pirated goods or download others work protected by copyright. Theft is theft.



    sigpic

  • #2
    Hard to see with that resolution, but I believe your referring to the GNATS Sonar dome (General Noise and TonalS)

    Here you can see it on the USS SHARK SSN-591, added during a mid to late '70's refit.

    Click image for larger version  Name:	1280px-USS_Shark_SSN_591_1.jpg Views:	0 Size:	73.8 KB ID:	138664

    Closeup with workers for scale.

    Click image for larger version  Name:	GNATS4.png Views:	0 Size:	32.7 KB ID:	138665


    ...so I added it to my 1:48 Scale USS SHARK SSN-591.

    Click image for larger version  Name:	IMG_20180522_191358511.jpg Views:	0 Size:	123.1 KB ID:	138666

    Click image for larger version  Name:	2019-08-11 12.17.01.jpg Views:	0 Size:	118.2 KB ID:	138667

    I'm no Sonarman, but I believe they were typical on US Fast Attacks in the 70's & 80's. The Boomer I served on didn't have it. Took me a while to figure out what it was myself lol.

    Allies as we are borrow a lot from each other, so it seems possible. Again hard to see what you had. Could also be a WLR-9 Acoustic Intercept Dome. TORPEDO IN THE WATER!!!!!!

    Last edited by QuarterMaster; 04-29-2020, 03:50 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 BLUEBACK-USS PATRICK HENRY-K432-U25-SSRN SEAVIEW-PROTEUS-NAUTILUS

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    • #3
      Click image for larger version

Name:	Royal_Navy_Trafalgar-class_submarine_HMS_Trenchant_(2).jpg
Views:	98
Size:	64.4 KB
ID:	138678 ...Maybe this will help-BG
      Click image for larger version  Name:	Royal_Navy_Trafalgar-class_submarine_HMS_Trenchant_(2).jpg Views:	0 Size:	67.2 KB ID:	138677
      Last edited by Bob Gato; 04-29-2020, 09:46 PM.

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      • #4
        Thanks it needs bigger photos
        John Slater

        Sydney Australia

        You would not steal a wallet so don't steal people's livelihood.
        Think of that before your buy "cheap" pirated goods or download others work protected by copyright. Theft is theft.



        sigpic

        Comment


        • #5
          Bigger version hope this posts
          Click image for larger version

Name:	50f8b7c20c3ab7d8181dcb271dfbc504.jpg
Views:	113
Size:	63.2 KB
ID:	138686
          John Slater

          Sydney Australia

          You would not steal a wallet so don't steal people's livelihood.
          Think of that before your buy "cheap" pirated goods or download others work protected by copyright. Theft is theft.



          sigpic

          Comment


          • #6
            John- Bigger!? just take those pictured in post #3 and drag them to your desk top and enlarge them in whatever photo viewer program you are using-BG

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            • #7
              I think that its a DSRV docking hatch... Click image for larger version  Name:	300px-DSRV-Mystic.jpg Views:	0 Size:	26.5 KB ID:	138718
              Last edited by Bob Gato; 04-30-2020, 06:35 AM.

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              • #8
                Thanks Bob. Makes sense.
                John Slater

                Sydney Australia

                You would not steal a wallet so don't steal people's livelihood.
                Think of that before your buy "cheap" pirated goods or download others work protected by copyright. Theft is theft.



                sigpic

                Comment


                • #9
                  Here's another view - the deck is beefed up in a small hump surrounding that dome.

                  Click image for larger version

Name:	12243840-0-image-a-55_1555201989466.jpg
Views:	93
Size:	102.9 KB
ID:	138729
                  John Slater

                  Sydney Australia

                  You would not steal a wallet so don't steal people's livelihood.
                  Think of that before your buy "cheap" pirated goods or download others work protected by copyright. Theft is theft.



                  sigpic

                  Comment


                  • #10
                    I still think it's an acoustic sonar dome. Having served, no hatch I've ever seen on a sub had a dome to mate with a DSRV, it would NOT swing fully open in the chamber. Plus I don't see any hatch seams, but I do see a hatch aft of it.. The taller one at the bow I'd bet dollars to donuts is similar to the US WLR-9 Acoustic Intercept.

                    The GNATS type dome I bet is aft, stbd at the waterline in the pic.

                    These boats have a towed array? Really not familiar with British Boats, much less a TRAFALGAR. Could it be a cover for a retrofitted towed array reel?

                    The pic Capt, Gaito shows with the DSRV is either an LA, SEAWOLF, or VIRGINIA by the looks of the Towed Array Housing. Hatches are FLAT.
                    Last edited by QuarterMaster; 05-01-2020, 04:53 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 BLUEBACK-USS PATRICK HENRY-K432-U25-SSRN SEAVIEW-PROTEUS-NAUTILUS

                    Comment


                    • #11
                      I would pay money to see a video of how those bow planes transition from 'retracted' to 'deployed'! Something like ALBACORE phase-1 and 2 I betcha!

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

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                      • #12
                        Ah-Sub Ed Knows his stuff...its a towed buoy... https://www.reddit.com/r/submarines/...ay_2030_x_978/Click image for larger version  Name:	be4f13acecedddf9bf1bfea66ed4aa7a.jpg Views:	0 Size:	69.7 KB ID:	138762Click image for larger version  Name:	be4f13acecedddf9bf1bfea66ed4aa7a.jpg Views:	0 Size:	69.7 KB ID:	138763
                        Last edited by Bob Gato; 05-01-2020, 09:39 PM.

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                        • #13
                          Originally posted by He Who Shall Not Be Named View Post
                          I would pay money to see a video of how those bow planes transition from 'retracted' to 'deployed'! Something like ALBACORE phase-1 and 2 I betcha!

                          David
                          Hey David, here is a dry dock shot. I think the bow planes on these retract straight in.
                          Click image for larger version

Name:	MZK4lzI1fmWZl_yv6yrXyOMnqxcpEk35_l_I8mUi1vk.jpg?auto=webp&s=e77f072b6da4de8288fba7a52b047453e54b1548.jpg
Views:	57
Size:	47.4 KB
ID:	138803

                          John Slater

                          Sydney Australia

                          You would not steal a wallet so don't steal people's livelihood.
                          Think of that before your buy "cheap" pirated goods or download others work protected by copyright. Theft is theft.



                          sigpic

                          Comment


                          • #14
                            Originally posted by Slats View Post

                            Hey David, here is a dry dock shot. I think the bow planes on these retract straight in.
                            Click image for larger version

Name:	MZK4lzI1fmWZl_yv6yrXyOMnqxcpEk35_l_I8mUi1vk.jpg?auto=webp&s=e77f072b6da4de8288fba7a52b047453e54b1548.jpg
Views:	57
Size:	47.4 KB
ID:	138803
                            Agreed. Those do.

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

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                            • #15
                              To be more precise, translated to a functional model,made by my tutor,

                              Click image for larger version  Name:	IMG_1976.JPG Views:	0 Size:	51.8 KB ID:	138825

                              Click image for larger version  Name:	IMG_1977.JPG Views:	0 Size:	49.5 KB ID:	138826

                              Unfortunally the resolution is not that high, tthose are pictures of photo's i have inside my archives.

                              Manfred.
                              Fertig zum unterwasser.

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