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» KRICK UBOOT DIVING PROCESS
Mon Jul 16, 2018 8:29 pm by tsenecal

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    KRICK UBOOT DIVING PROCESS

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    KSIMODO

    Posts : 3
    Join date : 2018-07-12

    KRICK UBOOT DIVING PROCESS

    Post  KSIMODO on Thu Jul 12, 2018 10:07 am

    Hi all- newbie on your forum - thanks for your help in advance

    how does the pump system work on this boat - I understand how to dive but how do you go back to surface since the water tank is still full of water and there is no way to empty the tank with the pump...

    secondly which kind of switch would you use to operate this pump (12v) from your radio
    thanks
    jm
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    david f
    AMS Treasurer

    Posts : 1966
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    Age : 67
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    Re: KRICK UBOOT DIVING PROCESS

    Post  david f on Sat Jul 14, 2018 8:48 am

    Hi Ksimodo,

    There is quite a lot on here on the Krick variants. e.g:

    http://www.theassociationofmodelsubmariners.com/t1239-krick-type-v11-u-boat?highlight=Krick

    For more info type Krick into the search box.

    From:

    https://www.cornwallmodelboats.co.uk/acatalog/krick_uboat.html

    It looks as if the current model has a ballast tank to bring the sub down to an "awash" condition and then it is a dynamic diver.

    You need to give more info about your 12v switch. Is this to control a ballast tank pump?

    David

    KSIMODO

    Posts : 3
    Join date : 2018-07-12

    Re: KRICK UBOOT DIVING PROCESS

    Post  KSIMODO on Sun Jul 15, 2018 2:44 pm

    Thanks for your answer David

    I think you're ok w the diving process, but I do not understand how the ship can get up out of the water, since the pump is not supposed to empty the water tank....(it is one way ) -It is a 12 v pump and I need to be able to operate it with my radio ....
    the switch is to operate the pump
    reagrds

    jm

    tsenecal
    Guest

    Posts : 100
    Join date : 2015-04-01

    Re: KRICK UBOOT DIVING PROCESS

    Post  tsenecal on Mon Jul 16, 2018 3:55 pm

    KSimodo,

    the ballast tank will not cause the submarine to sink, it is only large enough to get the sub down to "decks awash". after that, to make it sink, you will have to drive it with the diving planes pointing down. to surface, you will then drive the submarine with the diving planes pointing up, until the snorkel for the ballast tank is above the surface, at which point the water will be able to be pumped out of the ballast tank. if you simply stop the submarine, it will slowly rise back to the surface, but it make take a few minutes for it to get to a point where the snorkel is above water.

    if you run the pump while the snorkel is below the surface, you will simply be circulating water through the ballast tank, causing no change in the mass of the sub.

    KSIMODO

    Posts : 3
    Join date : 2018-07-12

    Re: KRICK UBOOT DIVING PROCESS

    Post  KSIMODO on Mon Jul 16, 2018 5:18 pm

    Hi Tsenecal

    many thanks for your answer - makes my problem clearer - So let's finish the explanation - If I have to empty the ballast, the pump has to be able to work in both direction in and out ?? Or it will empty because of gravity ?
    regards

    jm

    tsenecal
    Guest

    Posts : 100
    Join date : 2015-04-01

    Re: KRICK UBOOT DIVING PROCESS

    Post  tsenecal on Mon Jul 16, 2018 8:29 pm

    I would need to see pictures of the pump before i can say what it is able to do. I have seen both water and air pumps that will move fluids in both directions, and i have seen pumps that will only move fluids in one direction, regardless of which way the pump is actually turning.

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