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First of all, the material technology used by Miss Qiwu is not good, her gun barrel is actually processed from carbon steel, and the rate of fire is amazingly fast, which seriously affects its service life, and the gun barrel will also cause a significant decrease in accuracy after serious wear, which Li Hui does not want to see.

In particular, at present, even the artillery units of the first-class powers in the world do not have the capability of long-range counter-artillery, and as long as the main battlefield does not fail or is successfully attacked by the enemy, there will basically be no danger to the artillery. Since the probability of the cannon being destroyed in the war is not large, it is natural that the body life is longer and the gun is more durable, which is more cost-effective

Probably due to the problem of technological accumulation, before 1900, the world's most advanced artillery was basically from Britain, France and Germany, the three old powers, unlike twenty or thirty years later, even Japan, which had a weak industrial base, had a few fairly good domestic artillery.

Therefore, if Li Hui wanted to replace the cannon steel used by Miss Qiwu, he could only choose from the various artillery models introduced by these three countries before 1900.

Li Hui almost didn't think about it, so he directly excluded the French goods and British goods, and replaced Miss Qiwu with German cannon steel.

The reason is simple, as early as the late 1880s, Germany's material craftsmanship was already the first in the world, even for the relatively small advantage of steel for naval guns (to the British themselves), let alone for army field guns.

After the replacement of the cannon steel, although the cost of Miss Qiwu has increased a lot, it is definitely worth the money. As long as the optimized Miss Qiwu does not frequently carry out extreme rapid fire, there is no problem with firing thousands of shells per barrel, while dozens of guns are more than 100,000 shells.

With the pitifully low firepower density of the eastern battlefield and the stormtrooping formations that are far denser than those of the armies of the western powers, as well as the current way the army field artillery is used, such a large artillery shell consumption is enough to annihilate hundreds of thousands, or even millions of enemy troops, and by that time, Li Hui will most likely have liberated the whole country

In addition to the materials and processes used in the artillery itself, the charge of the shell was also changed to white explosive by Li Hui, although the power is not as good as the picric acid explosive used in the original, but the gap is not too big, and the price is cheaper, Li Hui has no reason not to use it at all.

Now Li Hui has fully realized that until enough related scientific and technological research and development is completed, and the cost of real high explosives such as TNT has dropped significantly, the two explosives he developed will always be able to maintain sufficient competitiveness, which makes Li Hui very proud

The improvement of the material process can not only directly improve the performance of the gun, but also greatly increase the structural strength of the gun body, making it possible to apply some radical designs that could not be used before.

After realizing this, Li Hui boldly changed Miss Qiwu's gun carriage to an open-foot type according to his memory, so that the direction angle of her left and right movement during artillery fire was increased from only 6 ゚ to more than 30 ゚, so that it was easy to change targets in battle, and could play a better role when cooperating with infantry attacks.

The greater impact is that the maximum shooting elevation angle of Miss 75 has been qualitatively improved, and the maximum elevation angle of the original Schneider 1897 Type 75mm field gun can only reach 18 ゚, which not only seriously limits the maximum firing range, but also the trajectory is too straight to hit the enemy hiding on the anti-slope plane, not to mention, it is also very difficult to use in trench warfare; The optimized Miss Seven Five has a maximum shooting elevation angle of up to 65 ゚, and in fact has become a "cannon howitzer" with a straight and curved trajectory.

Her shells can be taken care of wherever the enemy is hiding, and her soaring maximum range of nearly 12,000 meters allows her to shoot any army field gun in the world from a distance

After Li Hui's optimization, Miss Seventy-Five, which was enough to shock the world, has been perfected, and if you have to find a flaw, it is that her weight seems to be a little too large.

Due to Li Hui's drastic changes to the gun mount, even if the strength and stability of the gun body were significantly enhanced after the material process was replaced, the increase in the weight of the gun was still unavoidable. The original Miss Seventy-Five is already heavy enough, and the total weight of the optimized march has reached 1.68 tons

Li Hui remembers that during the Anti-Japanese War, Chinese and Japanese artillery pieces weighing more than 800 kilograms were considered excessive, on the one hand, because of the backward infrastructure of China at that time, roads, especially bridges, could not bear excessive weight, and at the same time, the poor road conditions also greatly increased the resistance of artillery trucks. On the other hand, because the size of the mule and horse in the East is much smaller than that of the heavy pull horse in the West, the strength is naturally much smaller, and because of the limitation of the harness, there is a limit to increasing the number of mules and horses to increase the pull force (6 horses can only reach a maximum of 3.7 horses, and then increasing the number can bring little improvement). ), which led to the fact that the physical inferiority of the Eastern mules and horses became difficult to compensate, and they could only limit the weight of the artillery to "cut their feet to fit"

However, these two points are not a big problem for Li Hui now, although the current domestic infrastructure situation is not as good as during the Anti-Japanese War, but the climate in the north is dry and the terrain is relatively flat, as long as the spring thaw and the mud of the rainy season are avoided, there is no need to worry too much about the maneuver of field artillery.

You must know that in history, although the devil artillery complained about the inconvenience of maneuvering, even the so-called "field heavy artillery" (less than 10 tons) had a record of fighting in areas far away from the railway line, and during the Liberation War, the artillery of Dongye even pulled the fortress artillery weighing up to dozens of tons back to the base area in the vast forest.

As for the southern Chinese battlefield made up by the rivers and paddy fields, there will indeed be some troubles, especially the problem of crossing bridges is difficult to solve, but it will have to wait until at least after 1896 to fight in the south, and at that time modern light artillery such as "mountain artillery" and "mortar" should also be studied, right?

On the issue of mules and horses, Li Hui is even more confident, the Western high-headed horse system can be produced, and they are all the best, among which the tallest and strongest Shire stallion weighs 1.8 tons, the back height is 2.3 meters (head height is 3.6 meters), it is simply a monster!

One of these charr giant horses can pull a wagon with a total weight of more than 900 kilograms, even on muddy dirt roads + wooden/iron-wheeled carts. And if it is an asphalt/cement road + rubber-tyred carriage with the best conditions, theoretically it is no problem to pull a load of more than ten tons alone

Li Hui is also a problem with some of Sharma's performance (eating too much when not working, poor adaptability to extreme environments such as severe cold and heat, and slower speed). Not very satisfied, through multiple breeding, the "Chinese heavy horse" with a slightly smaller body size was created. The latter also needed only two horses to pull an improved version of Miss Qiwu on a not particularly bad road - the "Jiawu 75mm field gun", and it was faster than the Sharma and could adapt to the special requirements of the cavalry troops.

With this advanced field artillery that is ahead of its time, the weakness of the cavalry that is not conducive to attacking fortifications will be largely compensated, and this ancient class of troops will also bloom its last glory!

[It's about to be 515, I hope to continue to hit the 515 red envelope list, and the red envelope rain will be able to give back to readers and promotional works on May 15. A piece is also love, and it must be better! 】