Chen Mu was here to observe the steam locomotive.

The whole car is about four meters long, the shell is riveted with iron sheets, the tires are inflated, there are anti-skid lines, and there are valve cores. You can see a lot of threads on the car, and it seems that the Cheng family already has semi-automatic machining equipment.

The gearing is in front and the steering wheels are also in front, which is good for grip when steering.

The front of the car is the driver's seat, which can only seat one person, and the back space is a little larger, which can seat two people.

After a while, a soldier returned.

"Your Royal Highness the Crown Prince, we found two people, but they committed suicide."

Chen Mu nodded, "Okay, what about the corpses and things?" ”

The soldier brought the things over, and Chen Mu saw that both rifles were there. I picked it up and looked at it, and sure enough, it was a flintlock pistol, but it was a front-loading one, which was relatively backward.

Immediately afterward, soldiers reported that all six of them were found, but all committed suicide. Thankfully, everything has been preserved intact.

Chen Mu smiled, "Okay! There are no guns, no cannons, the enemy made us. ”

This time, the battle plan was successfully completed, and Chen Mu led his troops back to Weishan County.

Not a single cart of food was lost, and the rebel cavalry was wiped out. The enemy made such a big move, and as a result, none of them went back, so they should not dare to act rashly again.

But it is also very difficult for Chen Mu to recover the lost land.

The enemy's artillery is increasing, and the Great Xia army is simply unable to suppress the city, and if it forcibly attacks the city, ten times the strength may not be able to take it.

Chen Mu thought about it and decided to return to the capital first to develop science and technology.

Li Feng led 10,000 cavalry, and Wudang Feijun Town guarded Shanxi, Chen Mu only took the invincible Feijun and escorted the booty back to the national capital.

Chen Mu told Li Feng that he would only defend the city, not attack, and if he could not hold it, he would retreat and retain his troops.

After returning to the capital, Chen Xingtian and the others were shocked when they saw the steam locomotive and flintlock pistol.

But Chen Mu said that he would soon build better weapons and then lead the army to regain lost territory.

Now that the domestic environment has been cleared, the Yin Tang Organization and the rebellious big family have been wiped out, and they can be developed with peace of mind.

Chen Xingtian naturally gave his full support, and spent a lot of money to recruit civilian craftsmen, plus the original blacksmiths and carpenters in other workshops, to form a military factory.

Of course, more importantly, it is the side of the Faculty of Engineering.

Chen Muhe and the people of the Institute of Engineering studied it, and this steam locomotive cannot be copied, and there is no need to copy it.

Because there is no rubber technology in Daxia now, and there are no large-scale rubber forests. And this steam locomotive is not suitable for use on the battlefield. I had to keep it for research and to learn about the structure of automobiles.

But this steam engine must be copied as soon as possible.

Since there were two steam engines, Chen Mu disassembled one with confidence and then studied its structure.

Chen Mu found that the transmission device of this steam engine was indeed much better than that of the engineering college. Although Chen Mu couldn't think of this kind of structure before, he had an extraordinary vision after all.

Moreover, Chen Mu also discovered the weakness of this steam engine, that is, there is only one cylinder, and half of the work is wasted. So Chen Mu changed it to a two-cylinder one, and the power was nearly doubled.

However, the improved steam engine was still bulky and unsuitable for use in cars. However, it is very suitable for steelmaking furnaces, which can greatly increase the temperature of steelmaking furnaces and improve the efficiency of metal smelting.

In this way, it was possible to create barrels and barrels that could withstand black powder.

If you want to build a rifle cannon, in addition to the requirements of metal craftsmanship and design drawings, the most important thing is black powder. If it develops naturally, I don't know how many hundred years it will take, but it is too easy for Chen Mu.

Saltpeter, charcoal, sulfur, knowing this basic formula, and then do some experimental adjustments, you can produce and use.

Moreover, Chen Mu also applied wax sealing technology, which can prevent moisture when preserving ammunition and increase air tightness when loading. If the air tightness is good, the initial velocity of the shell and bullet will increase, and the power and range will naturally increase.

Compared with the technology of the Cheng family, it has risen to a new level.

The flintlock pistol was also improved by Chen Mu and changed to a rear-loading one, which was more convenient when loading and easier to clean the barrel.

During this time, Chen Mu was so busy that he forgot to sleep and eat, but he also experienced the fun of scientific research. It only took half a month to finish all this.

The military factory is also working day and night, and has been rushing to work, and after Chen Mu's drawings come out, the prototype can be produced in a few days.

After another month of experiments, adjustments, and production, Great Xia already had thirty red-coated cannons, of which ten were heavy and twenty were light. There are wheels on both sides for easy movement, and there are brackets at the back to control recoil.

There were also a thousand rifles, all rear-loading flintlock pistols.

In the military factory, Chen Mu looked at the results of these days and felt happy from the bottom of his heart.

Chen Mu: "This is the productivity of our Great Xia, this is the strength of the working people of Great Xia, with these, why worry about the invasion of foreign thieves?" ”

Chen Xingtian smiled and said, "Mu'er, you did a good job." You resolutely returned to the capital and researched technology, which led to your current results. ”

"Now it can be said that the traitor is dead."

"This is the loss of people, the loss of people and land, the loss of people and land, the loss of people and land, the retention of people and land."

Chen Mu also smiled, "Haha...... Again, I told you. ”

Chen Xingtian patted Chen Mu on the shoulder, "That's right, I have a lot of things to learn from you. ”

"I'm proud to have a prince like you in Great Xia."

"If the prophecy of Heaven Bless Great Xia is true, then it must be you."

Chen Mu said solemnly: "Don't worry, with me, no one can shake Great Xia." ”

"Moreover, I want to spread the prestige of Great Xia even further."

"Let the influence of Great Xia spread all over the world."

Chen Xingtian looked at Chen Mu with satisfaction, as if he had seen a peerless emperor standing on the top of the world.

Everything was ready, Chen Mu took the invincible flying army of 5,000 people, plus the reserve army of 5,000 people, and marched to Weishan County.

Along the way, they trained as they went, and after ten days, the army arrived at the county seat of Weishan. Coupled with the days of training while producing in the capital, the artillery and musketeers of the Invincible Flying Army have been training for half a month.

The use of muskets and cannons has been basically mastered.

The next step is to improve in actual combat.

Chen Mu came to the county office and asked the remaining generals: "Has the enemy army attacked the city?" How's it going? ”

Li Feng replied: "Back to His Royal Highness the Prince, the enemy army attacked the city once a month ago. ”

"The enemy, with fifty cannons, bombarded the walls, and we returned fire with catapults. Due to the difference in height, the range of the catapult and the cannon were close and damaged each other. ”

"Half of the enemy's artillery has been lost, and our western wall has collapsed."