Although the light 50mm mortar was available in the Pacific, the 3 inch mortar was the primary and most reliable form of artillery utilized in the dense jungle environments, where the unique challenges of the terrain demanded more effective firepower.
The heavier weight of the 3 inch shell was specifically designed to break through the thick canopy before detonating, ensuring maximum impact against enemy positions concealed underneath. In contrast, the light mortar proved to be of little utility in such conditions, as its smaller projectiles often failed to reach the enemy or achieve the desired destructive effect.
This disparity in effectiveness led to the perception that the lightweight option was inadequate for the harsh realities of jungle warfare, although it is worth noting that various military regulations and lists, including those of the Australian forces, still included the light mortar as part of their inventory, perhaps highlighting its versatility in different combat scenarios or more open battlefields.
My 54mm Jungle Division Platoon has the option for both. The medium mortar would always be the weapon of choice, however if you only wish to use it for a smoke barrage or if you have a few points remaining the light mortar can be useful.
In addition the Light mortar has the capacity to move and fire so can be an advantage if you are the attacker in a scenario.
The light mortar was strong due to its simplicity and light weight, which made it an ideal choice for various military applications. Weighing in at under 24 kg with 18 bombs, it allowed for easier transport and deployment in diverse terrains. Its straightforward design meant that troops could be trained with minimal time investment, ensuring that even those with little experience could quickly become proficient.
Although the HE round was relatively small, aggregating them at the Company level was sometimes used to maximise effects. Because it was organic to the Platoon HQ, it would be available immediately, and without complication.
More tomorrow