The Arms Plot System
Posted: Thu Dec 18, 2025 5:27 pm
Hi Jason
In response to your question about weather units moving in and out of the BOAR kept their equipment or exchanged it with the unit replacing them in the brigade / division. The answer here is largely that they handed over any role specific items when they changed postings to the unit moving in to replace them. Until after the end of the Cold War British Infantry & Armoured units (and to some extent artillery ones as well) used what was called the “Arms Plot” system whereby units would serve some of their time at one location (say in this case BOAR) in one role (say mechanised infantry in this case) with the associated TOAE and then for the next posting move to a another location (say Cyprus) to take on another role (say the a leg infantry light role) and then go through the necessary change in TOAE that this required.
The same applied to Royal Armoured Corps units that would move between Tank and armoured reconnaissance roles as they changed postings. One side effect of this was that the British Army never had dedicated Mechanised infantry units and according to the Defence analyst, wargamer, and ex British Army Infantry Officer Jim Storr, (writing in his book “Battlegroup, the lessons of the unfought battles of the cold war” this led to all the different battalions operating the Warrier MICV developing different operating procedures. Likewise when your working your way through the rotational changes of BOAR this is why you will see units of the Royal Tank Regiment taking their turn as reconnaissance units while units of light cavalry i.e. Lancers and Hussars would also take their turn at being Tank Regiments.
Hope this helps
Kind regards
Ian
In response to your question about weather units moving in and out of the BOAR kept their equipment or exchanged it with the unit replacing them in the brigade / division. The answer here is largely that they handed over any role specific items when they changed postings to the unit moving in to replace them. Until after the end of the Cold War British Infantry & Armoured units (and to some extent artillery ones as well) used what was called the “Arms Plot” system whereby units would serve some of their time at one location (say in this case BOAR) in one role (say mechanised infantry in this case) with the associated TOAE and then for the next posting move to a another location (say Cyprus) to take on another role (say the a leg infantry light role) and then go through the necessary change in TOAE that this required.
The same applied to Royal Armoured Corps units that would move between Tank and armoured reconnaissance roles as they changed postings. One side effect of this was that the British Army never had dedicated Mechanised infantry units and according to the Defence analyst, wargamer, and ex British Army Infantry Officer Jim Storr, (writing in his book “Battlegroup, the lessons of the unfought battles of the cold war” this led to all the different battalions operating the Warrier MICV developing different operating procedures. Likewise when your working your way through the rotational changes of BOAR this is why you will see units of the Royal Tank Regiment taking their turn as reconnaissance units while units of light cavalry i.e. Lancers and Hussars would also take their turn at being Tank Regiments.
Hope this helps
Kind regards
Ian