I guess its time for me to reply to my slightly confusing post that I wrote last time and clarify what I wrote; note to self...do not post while slight under the influence.
Personally, I do not believe the CASW or Automatic Grenade Launcher (AGL) should replace the M19 60mm light mortar. I also do not believe that CASW should be grouped at the company level, but as it is it looks like that is the way the army will be grouping it, but I could be wrong as I am out of the loop now.
With that said, if the CASW is to grouped the rifle company level it should be part of a new heavy weapons platoons. This platoon will require additional soldiers rather than be manned by soldiers with the existing manning numbers...much like the mechanized companies have higher manning levels than light infantry company. Understrength companies are an issue in it of itself...but I digress.
I propose a heavy weapons platoon consisting of an anti-armour section with 2 Javelin ALAWS dets, a CASW section with 2 CASW dets, a heavy machine gun section with 2 M2HB dets, a 60mm mortar section with 2 dets, and a platoon headquarters section. Each heavy weapon section will have 8 soldiers. The platoon headquarters will consist of a platoon commander/company ops officer (senior captain), a platoon warrant officer, a platoon radio operator (an attached signaller not an infantry soldier), and 3 corporal/private soldiers functioning as driver/storeman/gunners/signallers for a total platoon strength of 39 soldiers and 1 officer.
The platoon itself would normally operate mounted in fire support vehicles--currently the GWagen LUVW C&R--or in static defence roles, but will in parts be capable of conducting extended dismounted operations. In the future, a variant of the planned Light Armoured Reconnaissance Vehicle to be procured for the infantry reconnaissance platoons would be a better option as a dedicated fire support vehicle for the platoon. The French long wheelbase VBL/VBR springs to me as a potential vehicle see http://www.panhard.fr/anglais/index.htm for details.
The complete platoon could conduct dismounted operations with the assistance of Gator 6X6 vehicles or similar to reduce the burden of ammunition weight in most areas of operation. I think CASW and HMG dets would be hard pressed to carry a useful load of ammunition if man packed, but perhaps if the 2 sections combined to man pack 2 of the CASW/HMG...the 2 sections could carry a useful load of ammo in the dismounted role even w/o a Gator 6X6 assisting.
As it appears based on unconfirmed reports the CASW may be slated to replace the 60mm mortar in the rifle company, but as I am now outside of military that might be a rumour.
Personally, I think creating a heavy weapon company with 3 heavy weapons platoons, minus the mortar sections, would be a far better organization as the company could detach sections to rifle companies as required, but the company also be used independently at the battalion/battle group commanders discretion. Where do the soldiers come from...that is a separate, but related issue.
Fire Support at the Rifle Platoon Level:
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In any case, I believe the Milkor MGL140 six-barrel grenade launcher at the platoon level would be far more useful given the lighter weight of the ammo and system allow for a greater number of target engagements than the 60mm light mortar. The 40mm LVG weighs .23kg versus 1.68kg for a 60mm mortar. The MGL140 weighs 5.9kg each while the M19 60mm mortar in the light role weighs 7.7kg. A 60mm mortar debt can engage targets theoretically out to around 1000m, but in reality accuracy is limited with the mortar dial sight. Typically it takes 4 round to bracket the target and 1 to hit it for a total of 5 rounds to hit one target. While some soldiers can do much better on the range the stress of combat will probably require 5 rounds for a single hit on target. As such 8.4kg of 60mm mortar ammo is required for 1 target with a 60mm mortar. Therefore a two man light mortar det could carry 16.8kg of ammo and the 7.7kg M19 mortar (a total of 24.5kg/54lbs) and engage only 2 targets with 1 mortar hit each or 1 target with 6 rounds to suppress/attack the target. Keep in mind that the 4 or 8 rounds are likely off target and may cause unwanted civilian casualties. Finally, the stated mortar load is in addition to the normal infantry load and doesn't take into the physical volume of 10 60mm mortar rounds.
Now compare a two soldier MGL140 det with 1 (or 2 MGL140). Each soldier could carry 24 X 40mm LVG @ .23kg or 5.52kg each of ammo and 1 MGL140 @ 5.9kg for a total load of 16.94kg or 37.3lbs. Add a second MGL140 and the total load jumps to 22.8kg/50.25lbs. Now consider that the MGL140 can engage in a semi-indirect and direct fire role very rapidly and accurately without wasted rounds. Each MGL140 could use up 6 40mm rounds per engagement. As such with 48 rounds, 8 separate targets could be engaged or more if fewer rounds are required. I concede that the 60mm mortar bomb has approximately twice the range of 40mm grenade under ideal conditions; future 40mm rounds will have longer ranges. More important is the ability of the MGL140 to rapidly engage targets at most combat ranges. Finally, I propose that the 60mm mortar be re-tasked to the company fires support role in the bipod role where the enhanced accuracy of the dial sight and greatly increased range of the mortar in the bipod role make it far more useful. The 60mm mortar will still be available at the platoon level if detached for specific missions. I believe the benefits of replacing the mortar by the MGL140 at the platoon level outweigh the negatives...but I am not in favour of retiring it, just relocating it to a company suppport level
Where do soldier come from to operate the MGL140 at the platoon level? I would argue that rifle platoon weapon det should consist of a C-6 det and an MGL140 det of 2 soldiers each plus the det commander. The Carl G SRAAW (M), the M72 SRAAW(L), and Eryx SRAAW (H) should be nixed in favour of something like the new generation of throw-away missiles Bofors (BAe) NLAW or Lockheed Martin Predator (Kestrel) or Rafale Spike SR. The latter weapons are capable of defeating armour and able to function as bunker busters and all have soft-launch capabilities. When MGL140 and one of the above stated low-cost throw-away missiles are combined with the current 40mm M203 UGL in the rifle sections, the infantry rifle platoon would have better combat capabilities and reduced training requirements. Keep in mind the British Army has a very similar set up. I am not suggesting that there are no disadvantages, but I believe it provides for better overall combat capabilities while attempting to reduce combat load creep.