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I can not remember the gas generating " forced to surface " tablet used.

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  • I can not remember the gas generating " forced to surface " tablet used.

    I have the large Gato rcd up & running well. I just need the the bag with fluid & a tablet to dive it.

    Many thanks.
    Rich

  • #2
    I am not sure I heard of this.
    tell me more of how it works. Any pictures?
    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


    • #3
      Baking soda? The toy submarine you got in a box of cereal?




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

      Comment


      • #4
        That is the only thing I can think of......or Alka-Seltzer

        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


        • #5
          Originally posted by trout View Post
          That is the only thing I can think of......or Alka-Seltzer
          When I was on the boats we had a form of torpedo-sonar evasion devices that when launched from a signal ejector would produce a flurry of hydrogen bubbles. Like a super-fizzy. maybe that chemical is what he's talking about?

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

          Comment


          • #6
            Baking soda + Critic Acid aka Bath Bombs = CO2

            Calcium carbide + water = Acetylene gas
            Make it simple, make strong, make it work!

            Comment


            • #7
              O.k. Story about calcium carbide. I was in my early teens and a buddy and I would fill a coke bottle with water and a few "rocks" of calcium carbide (used in mining hat lamp). Then put balloons over the opening and filled them with the gas created. We of course kept getting fancier in how we ignited them. It really is a spectacular poof of flames! Until one genius got a match too close and I had my eyebrows hair seared off!
              Lucky that was the worst that happened.
              I have a very healthy respect for them rocks. Do not use it in your sub.
              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


              • #8
                Found this old article. Used a timer to open a hopper to dump calcium carbide pellets into a bin with water to produce "acetylene gas"
                Attached Files
                Make it simple, make strong, make it work!

                Comment


                • #9
                  Gas generator based deballasting system are generally one shot "use in case of emergency" system not something you would use on a regular basis.
                  Last edited by redboat219; 12-16-2018, 06:50 AM.
                  Make it simple, make strong, make it work!

                  Comment


                  • #10
                    Would be nice to see a picture of your Gato.
                    Last edited by redboat219; 12-16-2018, 09:07 AM.
                    Make it simple, make strong, make it work!

                    Comment


                    • #11
                      I did a web search of gas generating Baking Soda & Vinegar type generators. I suddenly realized a calibrated fuse of some type is needed. Not interested in doing any more dives in my underware with a 12" cinder block.

                      81 years, 6 stints, Pacemaker & Defibulator. I think I will just do a static diver..........Bad luck ? I will be buried at the lake.

                      I decided to just do a wet system of motors- sealed by RTV coating. RTV & grease of all servos. Soldered servo wires covered with Hot Glue. 2 A123 1100 mahr cells power everything. Rc is a FM 4 channel .

                      The 2cells & receiver & ESC are in a drugstore pill bottle. Spring loaded caps are very good.. The drive shafts & couplings are S S.

                      Pictures are from doing submerged water tests during constructions.

                      I will add closed cell sheets of blue dock foam to get her balanced. The hull sections are held together with plastic straps across the seams. All are covered by the main deck plates.

                      I am finally regaining my abilities to do hobbies. Feels good.


                      Rich
                      Attached Files
                      Last edited by cyclops2; 12-16-2018, 02:49 PM.

                      Comment

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