* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



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

First events now posted for 2020. Let us know what you have planned.

.

Papplewick Pumping Station, Nottingham, Sunday 12th & Monday 13th April
Bournville Sub Day, Sunday 10th May 2020

. ,

;:

,./
.
.,,,

.

Bournville Sub Day, Sunday 13th September

,,,,

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

Who is online?

In total there are 3 users online :: 0 Registered, 0 Hidden and 3 Guests

None


Most users ever online was 180 on Tue Nov 05, 2019 6:03 am

Statistics

Our users have posted a total of 11067 messages in 1814 subjects

We have 838 registered users

The newest registered user is DWWelsh2019

    The Grondin a Naiade Class Submarine of 1904 (MMI December 2014)

    david f
    david f
    AMS Treasurer

    Posts : 2073
    Join date : 2010-11-10
    Age : 69
    Location : Cumbria

    The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) Empty The Grondin a Naiade Class Submarine of 1904 (MMI December 2014)

    Post  david f on Sat Dec 13, 2014 9:30 am

    An interesting article here describing The French Grodin sub built by Rene Lefevre.  Interesting construction - all metal.
    The Naiades were interesting in that they were the first use of electric propulsion motors in combination with i/c engines. (The Hollands??)
    Rene uses a central ballast tank emptied by butane gas. He uses  a pendulum type level controller.

      Current date/time is Sat Feb 22, 2020 6:58 pm