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For further details of any events shown here also see the "Shows and Events" section on the forum

*STOP PRESS* Coronavirus. A lot of Clubs have already cancelled all activities. Check carefully before you plan any travel


CANCELLED because of coronavirus. Papplewick Pumping Station, Nottingham, Sunday 12th & Monday 13th April
CANCELLED because of coronavirus. Bournville Sub Day, Sunday 10th May 2020

. ,

(CANCELLED) Submarine, Boating & Sailing Weekend, Norwich MBC, Weekend of 25,26th July

Model Boat Convention, Haydock Park (Cancelled this year)


CANCELLED. Bournville Sub Day, Sunday 13th September


(CANCELLED) Club Submarine Regatta, Furness MBC, Barrow in Furness, Sunday 20th Sept 2020

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    Simple on/off switcher

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    Post  Tom(ADMIN) on Sat Mar 09, 2013 4:22 pm

    You can't beat simplicity for ballast tank control (with apologies to David F, JR, Nigel, etc)

    This is the basic wiring diagram using two microswitches for flood/blow of a ballast pump.

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    david f
    david f
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    Post  david f on Mon Mar 11, 2013 8:41 am

    No need to apolgise, Richard - it does the business!

    (I still use microswitches on my proportional piston tank to ask as limit switches. They are very reliablle. Just use a generously rated microswitch if you are switching the motor directly.)


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    Post  Lash151 on Tue Mar 12, 2013 4:06 pm

    Hi David...
    Do you have a wiring diagram of micro switches as travel limiters on a piston tank?
    Thanks Lee
    david f
    david f
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    Post  david f on Wed Mar 13, 2013 8:28 am

    Sorry I don't have a diagram.
    It is all in Norbert Bruggens book, Model Submarine Technology (A must have,I would say.)

    You put 2 microswitches in with diodes in parallel. (The switch cuts off the motor and the diode allows it to reverse.)


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