Numbers again…this time regarding CTA 40mm cannons…

A couple of weeks ago, the UK moved forward by purchasing 515 CTA International CTA 40mm cannons for both its upcoming SCOUT SV vehicles, and its Warrior Armoured Infantry Fighting Vehicles (IFVs)/Armoured Personnel Carriers (APC). The cannons are part of the Warrior Capability Sustainment Programme (also see page 184 and related pages of this this National Audit Office (NAO) appendix .)

There was some confusion on my part if the number of cannons ordered was sufficient to meet the requirements of both the future SCOUT SV and Warrior fleets. A twitter chat (this specifically) revealed the actual number. According to Nicholas de Larrinaga , “The order for the cannons is evenly divided between the two vehicles, with 245 cannons destined for the turreted versions of the Scout SV and the Warrior CSP vehicles…the remaining 25 cannons would be used for “ammunition qualification, trials, and training”.”

Going back to another report of de Larrinagareport of de Larrinaga’s , 245 SCOUT SV variants would be of the turreted kind. This includes, “198 Reconnaissance and Strike variants, designed to operate as armoured cavalry; 23 Joint Fire Control variants, for use by artillery forward observers; and 24 Ground Based Surveillance variants, equipped with a man-portable radar system.” So that’s pretty interesting. I didn’t expect the Joint Fire Control vehicles and the Ground Based Surveillance to be equipped with a cannon, since their role is not that of infantry support or light armour attack. I suppose these two variants will hold less 40mm ammunition that the main Reconnaissance and Strike variants, or their overall tonnage would be huge.

Anyway, it seems like cannon order for the SCOUT SV matches the number of turreted SCOUT SV ordered. The trouble I see, is with the Warrior APCs. The NAO appendix above and this news release states that there will be 380 upgraded Warrior vehicles in the future. That certainly doesn’t match 245 CTA 40mm turrets. But according to the twitter debate that I had with Nick, not all of the 380 vehicles will be of the conventional FV510 Infantry Section Vehicle. Some will still be V512 Mechanised Combat Repair Vehicles, FV513 Mechanised Recovery Vehicles (Repair), FV 514 Mechanised Artillery Observation Vehicles (not the same as the SCOUT SV Joint Fire Control vehicles, or maybe a duplication), or even FV 515 Battery Command Vehicles (more unlikely). Some of them will be converted to the Armoured Battlefield Support Vehicle (ABSV). So altogether, 135 out of the new 380 ariors will be of these variants and won’t receive the CTA cannons. They may, as in the past, receive dummy cannons, well not the ABSV.

So 245 turrets warriors. But wait, the old Army 2020 report (now no longer found but there’s a soft copy), say that there will be a basic number of 14 Warriors per Rifle Company in each of the 6 Warrior Armoured Infantry Battalions. (This is also confirmed in this slightly inaccurate ORBAT and page 85 of Charles Heyman’s book The British Army: A Pocket Guide, 2012-2013). 14 x 3 equals 42 per battalion. 42 x 6 equals 252 warriors across all 6 battalions (Rifle Companies only). That’s a shortfall/deficit of 7 warriors with(out) CTA 40mm cannons. If we include the Warriors in the Manoeuvre Support Compamny and Battalion HQ, the shortfall/defict is even worse. Heyman’s and ORBATs give 57 x Warrioprs per battalion. Even if e cut down by considering the support Warrior variants and the ABSV, I would wager say just over 50 Warriors with turrets needed per battalion. This gives a shortfall of 55 or so Warriors !!!!

Ok maybe my figures are off and that 245 cannons fits perfectly well for all six Warrior Armoured Infantry battalions. Also it’s worth noting that even in major conflicts such as Operations Granby, Tellic and Herrick, not all Warrior Armoured Infantry Battalions were deployed at once.

I’m not the kind to fuss around with exact numbers, but surely there’s a mismatch here?