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After the battle of Dejima, the people on the island have a full understanding of their own strength, and because of this killing of officers and soldiers, they have not received any revenge, and the people on the island are not as afraid of the majesty of the imperial court as before. Cheng Pan is satisfied with the change in the spiritual outlook of the island. After being satisfied, you will be immersed in busyness. The number of people under its jurisdiction has increased tenfold, and the new population has to set up management institutions and carry out education. The workshops should be expanded, the village protection team should also be expanded, and the liaison system of all departments should be established. Cheng Pan was not stingy with iron dividers, and he was not stingy with the rations of joining the collective labor cooperative. Now, after the first summer harvest on the island, farmers have begun to exchange surplus grain for various industrial supplies. But the peasants in the new districts joined, and the small collective communes of ten people also needed a set of free iron farming tools, so the steel industry was still operating at a loss.

After the initial establishment of the system, it was already September. Cheng Pan finally remembered to start building a large number of buildings to climb technology. That's the toilet.

Cheng Pan's purpose in preparing to build a toilet on a large scale is not for the construction of spiritual civilization, in ancient China, the fate of a piece of since he was born, he will encounter all kinds of dangers, first dogs will eat, people will shovel it away, and if it is really going to be dried, it will be picked up by special people who collect dung and return it to the fertile field. There is definitely no way to gang up in the city and take over the city like its medieval counterparts. Since toilets are not built to add a point to the culture, it is to the military. That's right, militarily.

Ever since Cheng Pan established a pure firearms unit, his disappearance has been particularly fast. This is a must, and the newly formed village protection team must do its best to train under all kinds of live ammunition. So Cheng Pan must pay attention to the stool. For the soil method of nitrate, Cheng Pan only saw from the book, first dig out the feces in the toilet and put it on a vacant land, then take out the soil nitrate, heat and mix it with plant ash at a ratio of eight to one, filter the nitrate with charcoal, and then boil it until it is viscous, wait for it to cool, and take out the crystal. It's easy to say, but hard to do. How long does the manure pile take to produce soil nitrate, and what does soil nitrate look like? Cheng Pan has done many practices, and he almost tastes it with his mouth. The people on the island saw their Mr. Cheng and the dung screaming, and they didn't understand it very much. All kinds of rumors about Cheng Pan going crazy spread out, and after two months, Cheng Pan finally tried out a set of processes, but the output was still very high, barely producing a ton of nitrate a month. It is completely inconsistent with the concept of mass production in Cheng Pan's mind. In order to save gunpowder, Cheng Pan had to stop the initial crazy live-fire training method and re-formulate the live-fire training to 6o per month.

In October, Cheng Pan was finally freed from the stool heap and assigned the saltpeter making business to a small group to do, which was a chore. In order to prevent the nitrate production team from being passive and slacking off, Cheng Pan specially equipped them with leather gloves, protective clothing sewn with oilcloth and oiled paper, masks, gave them high salaries, and distributed soil soap made of oil and plant ashes, which finally ensured production.

The shortage of gunpowder allowed Cheng Pan to maintain the musket team at 5oo people. But Cheng Pan did not stop researching more powerful weapons.

Of course, the God of War artillery will not be missed by Cheng Pan. In terms of artillery performance, Cheng Pan pursued not large-caliber ammunition, but mobile infantry artillery. Cheng Pan feels that his current strategy for building an army is like that of Little Japan. 1. Armament is limited by resources. Large-scale weapons are being developed to be lighter. It is true that heavy artillery is not needed for the process, because the Chinese city walls are different from the European medieval city walls, and the Chinese city walls are further thicker, unlike the tall stone castles of the West. In the era of black powder, relying on artillery bombardment alone was not very effective. Of course, if it is more than 20 heavy artillery pieces that shoot 1o kilograms of iron eggs, it is a different matter, Yangzhou is knocked open by such powerful firepower. Cheng Pan did not have such a strong firepower, even if he had such resources, he would not be so wasted, Cheng Pan decided to follow the Taiping army's method of attacking Nanjing, that is, tunnel excavation and blasting. And now what Cheng Pan needs is a mobile infantry gun that can suppress the opposite cluster.

Cheng Pan re-entered the ironworks and decided to develop a suitable artillery. Cheng Pan was self-aware, and did not engage in too advanced artillery, which was first front-loaded.

Cheng Pan is ready to cast an iron cannon, so Cheng Pan uses the iron fan casting method, the specific process is to first use gypsum to make a large cannon, and then use molten iron to cast the iron fan section by section, and finally combine the iron fan, before pouring on the inner surface of the iron fan brush with plant ash and clay water and water to form a coating, and then paint the second layer of paint prepared by very fine pulverized coal. Final casting. Cheng Pan bumped into this practical activity as usual, but the problem was quickly solved. Because Cheng Pan found two bell casters, two of whom had many years of experience in casting large metal devices, the combination of experience and accurate vision led to the rapid creation of the cannon. In addition to using the iron method, Cheng Pan added a rotating concave and convex ridge line to the iron gun mold in the gun chamber, which rotated and twisted out when the gun cooled, so that rifling could be generated. Cheng Pan also put effort into the cooling of the artillery, for which Cheng Pan specially made a long multi-section sprayer, in order to make the internal and external cooling time of the gun chamber the same. After making a few more scraps, Cheng Pan finally recorded the best number of each process. The first batch of five cannons was manufactured. This kind of gun weighs one ton and shoots five kilograms of special iron bullets, the bullet shape is round, but in the circle of the bullet body, there are evenly arranged pits of the same size and depth, in order to adapt to the rifling in the gun body, can hit the target at 2ooo meters. It's not that Cheng Pan doesn't want to make a shell in the shape of a Mini bullet, but Cheng Pan hasn't made a shrapnel yet, and the lethality of a solid Mini bullet is not enough, so he doesn't suffer in range anyway. After many test firings, Cheng Pan calculated a reasonable charge of the cannon and the firing distance of the cannonball. After making a matching elevation sight, the remaining four guns (one of which was damaged by the destructive real yàn) were placed in Cheng Pan's factory center.

Looking at the saltpeter that was consumed by the cannon little by little, Cheng Pan felt a pain in his heart. I am not ready to carry out the creation of new types of artillery. The finalized medium artillery was named a type of artillery by Cheng Pan. The production of Type 1 guns was also discontinued after the production of twenty pieces, mainly because the ammunition could not be consumed.

And now none of these twenty guns are mothballed and none of them are equipped with the village guard team, the reason is also the same unaffordable, Cheng Pan only selected ten people from the village guard team for gunner training.

In this way, Cheng Pan entered 1341 A.D. in heavy snow.