If all Italian M109L's are acquired, not only IABG/IMBG's but Infantry Division armoured regiments & Artillery Divisions can be equipped as well:
M109L:
1 + 1 + 1 regiments in 3x IABG (18 x 3 = 54)
1 + 1 regiments in 2x IABG under raising/planned (18 x 2 = 36)
1 battery each for 17x Infantry Division armoured regiments excl. 12 ID, FCNA & 34 LID (6 x 17 = 102)
2 Artillery Division (I Corps)
1x SP Heavy Regiment with M110A2 (exists?)
2x SP Medium Regiments with M109L (18 x 2 = 36)
21 Artillery Division (V Corps)
1x SP Heavy Regiment with M110A2 (confirmed)
2x SP Medium Regiments with M109L (18 x 2 = 36)
Total = 264
Leonardo testing upgraded M109L SP artillery system
Christopher F Foss, London - Jane's International Defence Review
29 January 2019
An upgraded Italian M109L from the rear fitted with the Leonardo 155 mm/52 calibre ordnance partly elevated, and with spades either side of the hull in raised position. Source: Leonardo
Italy's Leonardo Defence Systems has developed and tested an upgrade package,
aimed at the export market, for the M109L 155 mm self-propelled (SP) artillery system.
The standard M109L is fitted with an Italian-built 155 mm/39 calibre ordnance that is the equivalent to that fitted to the 155 mm FH-70 towed artillery system still deployed by the Italian Army.
The latest upgraded M109L has a 23 litre chamber and meets the Joint Ballistic Memorandum of Understanding (JBMOU). It is also fitted with a fume extractor and a new pepper box muzzle brake.
The recoil system and equilibrators were modified to take into account the increased recoil and weight of the 155 mm/52 calibre ordnance. The breech mechanism is of the screw type, and a flick rammer is fitted with an adaption on the stroke of the rammer to fit with the longer chamber.
Maximum range depends on the projectile and charge combination, but firing a standard 155 mm M15A2 high-explosive (HE) projectile a maximum range of 30 km can be achieved, or an extended range ammunition could reach 40 km, according to Leonardo.
The most significant range improvement would be firing the latest Leonardo Volcano 155 mm Ballistic Extended Range (BER) artillery projectile, which was type classified by the Italian Army and is ready for quantity production as soon as orders are placed.
Volcano features a sub-calibre fin-stabilised airframe that is loaded with an Insensitive Munition (IM)-compliant HE with patented tungsten rings. This is fitted with a nose-mounted multifunction fuze that can be set for altitude, impact/delayed, time, or self-destruct functions. This airframe has sabots that fall away after firing, and the 16 kg fin-stabilised projectile is 90 mm in diameter.
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Leonardo testing upgraded M109L SP artillery system | Jane's International Defence Review
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