In September 1939 there were just 3 Independant Super Heavy Batteries, 1st, 2nd & 3rd. These went to France with the British Expeditionary Force and were lost during the retreat.
Two batteries had 9.2 inch Rail Guns and the third, tractor drawn 12 inch Mk IV Howitzers.
| 1 Super Heavy Regiment RA |
| 2 Super Heavy Regiment RA |
| 3 Super Heavy Regiment RA |
| 54 Super Heavy Regiment RA(TA) |
| 61 (North Midland) Super Heavy Regiment RA(TA) |
