The Association of Model Submariners.

Would you like to react to this message? Create an account in a few clicks or log in to continue.

* 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 send an email with your name , address and phone number to amstreasure@googlemail.com


For a guide to past events see the "Shows and Events" section.

Papplewick Pumping Station, Nottingham, April 9th & 10th


,

"***"

Who is online?

In total there are 2 users online :: 0 Registered, 0 Hidden and 2 Guests

None


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

Latest topics

» Waterproof servos
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptyYesterday at 10:31 pm by geofrancis

» Servo Depth controller
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptyMon May 29, 2023 5:43 pm by geofrancis

» 27Mhz - Radio Ideas
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptyMon May 29, 2023 12:39 pm by david f

» Robbe Seawolf V2
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptySun May 28, 2023 1:25 pm by geofrancis

» BEC - Switch mode
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptyMon May 22, 2023 11:28 am by geofrancis

» Cheap Arduino Auto leveler
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptySat May 13, 2023 11:23 am by C-3PO

» Pump for bladder system
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptyWed May 10, 2023 10:34 pm by tsenecal

» Wireless charging
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptyWed May 10, 2023 9:14 pm by geofrancis

» documentation for a robbe seawolf v2
The Grondin a Naiade Class Submarine of 1904 (MMI December 2014) EmptyWed May 10, 2023 5:08 pm by geofrancis

Statistics

Our users have posted a total of 11992 messages in 1955 subjects

We have 977 registered users

The newest registered user is awilki47

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

    david f
    david f
    AMS Treasurer


    Posts : 2333
    Join date : 2010-11-10
    Age : 72
    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 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 Wed May 31, 2023 3:43 am