Please click on the links below to download the files.

for more information on these files, please see the section "Electronics" on the forum.

7 Channel _7_channel_encoder by Phil Green


WTC Calculator 2 by John Wrennall

Heins U25 Instructions

Proportional Piston Tank Controller

A 68 page article on Vickers Submarines in the UK
covering the years 1884 to 1984

(This has been written by Keith Appleford and kindly provided by Luton and District MBC.)

British Class Submarines drawings

E Drawings

E Conning Tower

L Drawings

O Drawings

With thanks to Dave Wright

Nautilus plans


As older radio equipment(27meg /40meg / 75meg) is now becoming harder to source. OpenLRS is a new system that works under water

To find out more on this, please click here to read more about this system