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revell VIIc

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  • #91
    Originally posted by satlite440 View Post
    it seems fine now time will tell..i worry more about how it will vent water/air...

    It will vent air ..... ONCE!

    But, all subsequent dives attempts with a wet deck the air will not be able to escape the superstructure. Water surface tension will bridge those long, narrow slots with water and the deck won't vent through the slots when you flood the SD.

    Therefore, you are compelled to open up big (no smaller than 1/8" diameter) holes in the deck to vent the hull adequately.

    Water won't scale for you -- there's an apparent viscosity increase with reduction of model size. Hello, Doctor Reynolds!

    I have spoken! So let it be written! (insert crack-of-thunder sound here).

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

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    • #92
      How about applying a surfactant to the underside of the deck to break up the water tension, like a detergent.

      Or maybe even some petroleum jelly.
      Make it simple, make strong, make it work!

      Comment


      • #93
        The patrolium will leach into the paint as it works its way to the outside of the boat. What a god-awful mess! That don't work. Guess how I know!
        "... well, that takes care of Jorgenson's theory!"

        Comment


        • #94
          Yeah. Been there, done that... The thing is styrene is a oil derivative as is petrolium jelly. Drop a piece of spur into a cup of petrol... Pretty soon no sprue. Though not as quick or radical the jelly will do something similar as it morphs with the styrene. As David said YUCK!!
          Last edited by alad61; 04-29-2013, 02:39 AM.
          Cheers,
          Alec.


          Reality is but a dream...
          But to dream is a reality

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          • #95
            I actually sanded the underside of the VII deck smooth, removing everything but the overlaps then sprayed a smooth coat of 2K. My feeling was that if there was nothing there to catch and trap bubbles, so much the better.

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            • #96
              vital.spark, did you add any additional holes to vent air? If so where did you place them?
              If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.

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              • #97
                Originally posted by alad61 View Post
                Yeah. Been there, done that... The thing is styrene is a oil derivative as is petrolium jelly. Drop a piece of spur into a cup of petrol... Pretty soon no sprue. Though not as quick or radical the jelly will do something similar as it morphs with the styrene. As David said YUCK!!
                ok. Wonder if sticking a small bar of soap below deck will help break up the tension?
                Make it simple, make strong, make it work!

                Comment


                • #98
                  I reinforced mine with plastic beams below and had no structural problems with it. regarding air or water trapped under deck, there wasn't any problem at all with water when diving; you can see some tension with it when surfacing. And with air, the main problem is the bubble trapped under deck's rearmost part, where there aren't any slot. Click image for larger version

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                  Last edited by reddevil; 04-29-2013, 06:30 AM.

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                  • #99
                    Originally posted by reddevil View Post
                    I reinforced mine with plastic beams below and had no structural problems with it. regarding air or water trapped under deck, there wasn't any problem at all with water when diving; you can see some tension with it when surfacing. And with air, the main problem is the bubble trapped under deck's rearmost part, where there aren't any slot. [ATTACH=CONFIG]19969[/ATTACH][ATTACH=CONFIG]19970[/ATTACH][ATTACH=CONFIG]19971[/ATTACH][ATTACH=CONFIG]19972[/ATTACH][ATTACH=CONFIG]19973[/ATTACH]
                    is that a mini engel tank in there?
                    Next time someone points out it takes 42 muscles to frown, point out it will only take 4 muscles to b1tch slap them if they tell you how mnay muscles you need to smile:pop

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                    • custom job maybe, probably around 250 ml or less.
                      Make it simple, make strong, make it work!

                      Comment


                      • No, is a 650 CC normal one. It's an optical effect cause the deck is nearer to the camera and a little bit unfocussed. The ENGEL tank is the one fitted for my AKULA II.
                        Click image for larger version

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                        And the second set of pictures is a mistake made when trying to load the desired ones.
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                        • Hi. AS I've been requested about how I've fitted the stuff inside muy VII C, here I send you some pictures about.
                          Attached Files

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                          • A bit blurry. Maybe you could repost it.
                            Make it simple, make strong, make it work!

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                            • I',m sorry, but are not able to upload this and another two in an apropriate size. Keep trying

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