The future of submarine sails

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  • collins class
    SubCommittee Member
    • Dec 2004
    • 128
    #1

    The future of submarine sails

    [color=#000000]Came across some interesting info about the design of the new sail which will be fitted to the Virginia class from 2006.
    http://www.dt.navy.mil/pao/excerpts%20pages/2001/advSail6_01.html


    The new sail design is shown on the submarine test vehicle below


    My favorite comment is]
    Tags: None
    • scott t
      Member
      • Feb 2003
      • 880
      #2
      Add a raker and some

      Add a raker and some bubbled ports.
      I wonder what that would look like?

      Scott

        Comment

        • wayne frey
          Junior Member
          • Aug 2003
          • 925
          #3
          It looks Russian to me

          It looks Russian to me (of course).
          It may be just me, but the first time I saw an Alfa, the sail design just made sense. Hydrodynamic big time, and maybe less likely to cause "snap roll?" And just plane awsome!
          Now, if the Russians would go to a single hull boat, I would not have to cut out so dang many holes in my boats !!!

            Comment

            • gerwalk
              Junior Member
              • Dec 2004
              • 525
              #4
              It looks Russian to me

              It looks Russian to me (of course).
              It may be just me, but the first time I saw an Alfa, the sail design just made sense. Hydrodynamic big time, and maybe less likely to cause "snap roll?" And just plane awsome!
              Now, if the Russians would go to a single hull boat, I would not have to cut out so dang many holes in my boats !!!
              [color=#000000]No Wayne, that's just a mere coincidence]http://www.subcommittee.com/forum/icon_question.gif[/img] That's plain silly. Please admit it]

                Comment

                • JWLaRue
                  Managing Editor, SubCommittee Report
                  • Aug 1994
                  • 4281
                  #5
                  I have always heard that

                  I have always heard that the new sail form has been a part of the Virginia-class design from the beginning. The use of non-optical masts and imaging systems seems to be the basis for looking at the alternative sail design.

                  I also agree that it looks "Vulcanian".

                  -Jeff
                  Rohr 1.....Los!

                    Comment

                    • anonymous
                      #6
                      Jeff,
                      You're correct, the streamlined

                      Jeff,
                      You're correct, the streamlined sail was always planned. The optronics mast is currently on the Virginia with the plain vanilla sail (Seawolf-like). My understanding is that the "new" sail will have a larger volume which will permit a "garage-like" storage space that can hold small UAVs and other action figure accessories. The sail was scheduled from boat 5 onward-we'll see. The plan was around boat 10 to introduce electric drive and do away with the main propulsion turbines (harkening back to the quiet Tullibee and Lipscomb attempts at electric drive). The electric propulsion motors would be "encapsulated" in the rear ballast tanks, and would be AC rather than the bulky DC drives of the earlier submarines.

                      Of course with all the questions around the expense of the Virginia class subs, will there even be a tenth hull?
                      Tom

                        Comment

                        • boss subfixer
                          Junior Member
                          • Aug 2004
                          • 656
                          #7
                          Tom as far as there

                          Tom as far as there being a tenth or more Viginia hulls who knows. It is supposed to be a large class but then so was the seawolf. I do know that they need to do something because the 688's are slowly but surely getting tired. Maybe we should build more 688's but with updated equipment, it is one heck of a fast attack even though it's a Newport news boat (i work for E.B.)
                          BSF

                            Comment

                            • collins class
                              SubCommittee Member
                              • Dec 2004
                              • 128
                              #8
                              For you folks interested in

                              For you folks interested in hydrodynamics I came across some interesting flow analysis images looking at sail designs]http://www.science.gmu.edu/~rlohner/pages/pics/images/sub/sub2_t.jpg[/img]

                              From here]http://www.science.gmu.edu/~rlohner/pages/pics/incompflows.html[/url]

                              The new Virginia will definitely be a racier looking boat don't you think???

                                Comment

                                • anonymous
                                  #9
                                  Don,
                                  I agree the 688's

                                  Don,
                                  I agree the 688's are being worked pretty hard, and some of the earlier boats still in service (LA, Phila.) are coming up on 30 years in service. As far as updating the 688s, there were so many compromises made in that design, I would much rather see them stick with the Virginias- I'll bet if they restarted the 688's they would end up being just as expensive.

                                  BTW, I'm down the street at Pfizer.
                                  Tom

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