Join the AMS - Registered Forum users can become members of the AMS and it's free ...... To join register on the forum first then follow the forum link to our membership form which is on our website

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

Let us know of your plans for 2018 and we will promote them on this Forum



. ,Alfold Charity Model Boat Show, Surrey, 2nd & 3rd June 2018

Exeter & District Model Boat Club, Sunday 10th June

.Norwich MBC Weekend 28,29 July 2018
.Model Boat Convention, Haydock Park, 25,26th August

.Barrow in Furness MBC, Sub Day and Regatta,Sunday 2nd September 2018.

.Bluewater, Dartford, Chantry Model Boat Club, Sunday 2nd September

. Bournville MBC, Birmingham, Sunday 2nd September

,The Model Show,Poynton, Stockport (with swimming pool) 15,16th September 2018

Who is online?

In total there are 5 users online :: 0 Registered, 0 Hidden and 5 Guests


Most users ever online was 37 on Sun Mar 13, 2011 11:27 am

Latest topics

» model submarine test tank on the cheap
Sat May 26, 2018 8:45 pm by merriman

» engle piston tank convert to servo control
Fri May 25, 2018 5:48 pm by timgarrod

» "Shadow Divers"
Thu May 24, 2018 1:35 pm by david f

Tue May 15, 2018 7:46 pm by bwi

» Bournville May 2018
Tue May 15, 2018 8:55 am by david f

» small diameter static-diving type SubDriver
Fri May 11, 2018 2:10 am by merriman

» bournville in a couple of days
Tue May 08, 2018 9:13 pm by timgarrod

» For Sale almost new
Sat May 05, 2018 9:37 am by johnayre1

» For Sale almost new
Thu May 03, 2018 12:29 pm by johnayre1


Our users have posted a total of 10552 messages in 1727 subjects

We have 764 registered users

The newest registered user is tally ho

    Floating Ball Cutt off for Ballast Tank


    AMS Website Webmaster

    Posts : 209
    Join date : 2013-04-23
    Age : 37

    Floating Ball Cutt off for Ballast Tank

    Post  timgarrod on Sun Jul 21, 2013 6:28 pm

    Evening All,

    Sorry if this has already been cover but need some advise,

    I'm having to rebuild my Ballast system as the airbag is larger enough to lift and can't fit any more foam in side to lift the submarine to the correct height.

    My idea is to please two milk bottle ether side of the WTC, and pump the air into them to push the water out and and use the solenoid to release the air back into the WTC. the problem is I need a valve that has a ball inside the tube that then the bottle fill with water the ball will shut the tube to stop the water going into the WTC, do these exist or will I have to make them, also going to put on inside the tower so when the sub is surface any lost air is replaced in the WTC.

    Trying to make it like the one from SAS WTC from the revel Gato build


    AMS Chairman

    Posts : 1106
    Join date : 2010-11-06
    Age : 64
    Location : Braintree, Essex

    Re: Floating Ball Cutt off for Ballast Tank

    Post  nigele(ADMIN)2 on Mon Jul 22, 2013 8:52 am

    Morning,I have seen valves like this used but it was a long time ago it's like a mini systern valve,they where not very reliable and where a home brewed item,you might be better of using a water switch and electronic valve,I have seen some nice valves on ebay,under radio control submarines,and John Robinson can most likely help with a water switch.

    AMS Website Webmaster

    Posts : 209
    Join date : 2013-04-23
    Age : 37

    Re: Floating Ball Cutt off for Ballast Tank

    Post  timgarrod on Sat Jul 27, 2013 10:52 am

    Thanks Nigele, I'll have a look into this, and research water switches

    Sponsored content

    Re: Floating Ball Cutt off for Ballast Tank

    Post  Sponsored content

      Current date/time is Mon May 28, 2018 2:32 am