Structure of the RFA in WW1

[david bush]

I know this may sound like a stupid question but can someone explain the hierarchy of the RFA. I don't understand the difference between a Battery, Brigade, Division etc. 

[David Porter]

Here is a rather simplistic overview:

One gun = A Sub-Section
Two guns = A Section
RFA Battery (4 guns) = Left and Right Sections
RFA Battery (6 guns) = Left, Centre and Right Sections
RFA Brigade = Two or more Batteries (plus an Ammunition Column up to May 1916)
Divisional RFA = Two or more Brigades (plus an Ammunition Column which absorbed the BAC)
The Corps Artillery usually had more than one Divisional Artillery at its disposal