Hi Guys!
The Philippines may have the weakest and poorest armed forces in the region, (Cambodia and Laos are poorer in per capita GNP but because of the past wars have probably more equipment), so we have to make do. There is no way we can replace artillery with aircraft as we even can't maintain our airforce. Humiliatingly enough, the AirForce only held a parade during their anniversary as there were no viable aircraft to fly!
When I joined the field artillery, we first trained on mortars; specifically old US Army surplus 81 mm battalion mortars. Thats right! In the Philippine army, mortars larger than 60mm are organic to the artillery not the infantry! The base plate is immensely heavy and is made from a very rough and crude cast iron. The mortar tube itself must be 20 kilos or more and an ugly black ball is cast into it's base. The only smooth and machined part is the bipod assembly.
The goniometer (panoramic telescope) was attached to the bipod.
If you think about it, the mortars were good for training us. Firstly, they were plentiful and easier to handle. Second everything is smaller and lighter. Third, the principles, techniques and even appearance of the goniometer we used were the same as for the howitzer. And lastly, (probably most important) they were much, much cheaper to shoot. I would recommend them for training budding artillerymen.
The Philippines is a tropical country and we have only two types of weather, dry (like a desert) and wet (monsoon). During the dry season its easier to move about because the ground is very hard and can bear a lot of weight. During the wet season, operations are nearly impossible due to flooding and mud, mud, mud.
Most of the time, the guns stay on or near the roads, so that movement and resupply are not a problem (and not just resupply for the guns, especially for the gunners!). Still because there are old (WW2 vintage) and not well maintained (hard to get spare parts), accuracy is only fair. We do not make the ammo, so we shop around (last time I heard we bought Pakistani made ammo).
And yes Goll, we had to rely on maps. Lucky enough the main map-making facility is operated by the Army (called NAMRIA National Mapping and Resource Information Center, endowed by the Germans!) so we could get good scale maps. Just look how they did it in WW1 and WW2. We even used an old US Army manual for training!
Best Regards,
Dusky Lim