In the early morning of the next day, Zhao Mengjin got up early in the morning to ask for peace, but he pounced on the air, and after asking Wang De, he realized that His Majesty had already gotten up to go to the school for morning exercises. After hearing this, he patted his head and scolded himself for being confused, the little emperor has always been dancing when he smells chickens, and he has practiced hard, but he has become lazy. And he didn't dare to slack off, and hurriedly went to find His Majesty, fortunately, the barracks and the yamen were not far away, only a road away, and they arrived in a few steps.

"Don't make trouble for Lao Tzu these rabbit cubs......" As soon as Zhao Mengjin arrived at the school ground, he saw a group of people gathered in the middle of the school field, no need to ask, it must be watching the little emperor, he muttered as he ran.

"Don't worry about the commander, the first division was established by His Majesty himself, and the officials up and down know it, and it will be fine." When Chen Fenglin heard that Zhao Mengjin was coming, he also hurriedly chased after him, and after hearing his muttering, he answered.

"That's why the Sprinkle family is worried!" After entering the school field, Zhao Mengjin slowed down, took a few breaths, and tried to stabilize his breathing and said with a frown.

"Commander, who dare to be unfavorable to His Majesty, what are you worried about?" Chen Fenglin followed two steps and asked puzzledly.

"The two of them are on the same page!" Zhao Mengjin squinted at Chen Fenglin and said in a low voice.

"Oh!" When Chen Fenglin heard this, he quickly fell down and leveled his feet, and adjusted his steps, but he was secretly happy in his heart, and he was still very jealous of His Majesty.

"It is precisely because they are familiar with Your Majesty that the Sprinkle family is worried that they will be open-mouthed and inappropriate, which will make Your Majesty angry!" Zhao Mengjin said in a deep voice with a serious face.

"Hehe, even if Your Majesty is angry, he won't blame them, I'm afraid that the one who will be trained will be in charge!" Chen Fenglin chuckled ill-willedly.

"Hmph, if Your Majesty scolds the Sprinkle family, the Sprinkle family will clean you up!" Zhao Mengjin snorted coldly with an expressionless face.

"One shot!"

"The second cannon is good!"

"Three guns are good!"

"Launch!" ……

"What's going on there?" Zhao Mengjin asked, pointing to the crowd.

"Yes, that's right. Our first army has just been equipped with mortars, and now we are organizing various divisions to train here. Chen Fenglin reported back.

"Oh, Your Majesty must be observing, let's not disturb!" Zhao Mengjin had already heard that His Majesty was issuing the password, and knew that he must be guiding the training again, after all, this thing was made up by the little emperor, and only he was most familiar with it, so he stopped when he walked outside the circle.

"Why did you forget again, when you hear the password to fire, after the shell is loaded, you have to lean over and cover your ears, open your mouth wide to prevent your ears from being shocked, and avoid being burned by the flames that erupt, if you explode the chamber, maybe it can save your life!"

"Sure enough, Your Majesty is addicted to being an instructor again!" Chen Fenglin saw that the little emperor was explaining, kneeling on one knee to make movements, hunched over like a shrimp, and smiled.

"Don't laugh, although this posture is indecent, it can save lives at critical moments!" Hearing everyone's laughter, Zhao Yu straightened up and nodded to everyone laughing.

"These boys, I really don't know what to do!" Although the little emperor was not annoyed, Zhao Mengjin said with a black line on his face.

"Lizheng, report to the commander, the commander, the artillery training team of the first army is training, please instruct!" When the executive saw the two of them coming, he immediately stood up and saluted.

"Continue to train, Your Majesty will personally instruct you to operate the cannon, that is a blessing from eight lifetimes of cultivation, and you are not allowed to laugh and laugh!" After Zhao Mengjin returned the salute, he saluted the little emperor and sat down cross-legged and straightened his waist in the front row to listen to the lecture.

With these two in charge, the training ground suddenly became quiet, which made Zhao Hao very depressed. Of course, he is not good at operating artillery, but compared to these soldiers who have just come into contact with mortars, he is also experienced, and he has seen the training of his brothers on TV. In fact, he really has no shooting experience, let alone in his previous life, this time it was just that they sent a sample cannon to himself after the successful trial production, but there was no place to test the cannon on the edge of the West Lake, and it was only on paper at the moment.

However, these training personnel in front of him are the first batch of mortars, so Zhao Yu decided to popularize knowledge for them, and he is better at it. So he started from the principle and structure of the mortar, and explained in detail the role of each component and how to operate and maintain it; And then there are the shells, in fact, in terms of shells, they really can't be called mortars.

The mortar shell uses its own weight to slide into the barrel, and uses the firing pin at the bottom of the gun to fire the bottom fire of the shell, igniting the basic charge tube at the tail of the shell, and then the gunpowder tied to the additional powder bag on the outside of the shell body is also ignited. Zhao Hao has not yet made up the detonating charge, so he can only light the fuse with an open flame and then stuff it into the barrel, of course, except for this, there is no big difference from modern mortar shells, and there should be everything.

In addition, the firing principle of the mortar determines that the mortar shell cannot be closely attached to the barrel, and there is a certain gap between the shell and the barrel to ensure that the shell slips off, and the rifling cannot be relied on to rotate the shell to stabilize its flight direction. Therefore, Zhao Yu also used the modern inlay process to install a copper closed air ring on the outside of the missile body to increase the pressure in the chamber, and added a tail wing when the missile body was cast as a stabilizing device to ensure its flight attitude. The high and low machine is composed of large and small bevel gears, screw barrels and outer cylinders, and the large and small bevel gears and screw barrels can be rotated by rotating the handle, and then the high and low screws move up and down, giving the gun height and low firing angle.

At the beginning of the design, Zhao Yu positioned the mortar to accompany the infantry in battle, in order to make up for the weakness of the slow rate of fire of the musket, and to deal with the cavalry. Therefore, he uses a two-inch caliber, which is also equivalent to a modern 60 mortar, with an overall weight of about 20 catties and a cannon body of two feet, so as to facilitate carrying and maneuvering, and keep up with the infantry attack speed. However, the maximum firing range of gunpowder is 200 paces, the minimum firing range is 50 paces, and the killing area is within a radius of two zhang, which is not the same as that of modern times.

Then Zhao Yu also talked about the application tactics of mortars, he was worried that these people were still used as direct-aim artillery, so he spent more time on tactics, telling them that mortars are also suitable for mountain warfare and positional warfare, and especially suitable for using curved fire to deal with targets behind shelter. It can cooperate with small infantry units, especially detachments below the capital to support the operation.

Finally, Zhao Hao emphasized that on the battlefield, there may be a phenomenon of repeated mortar reloading, that is, when a shell is put into the muzzle, but it is not successfully fired for various reasons, if the gunner does not realize this and puts another shell in again, it will form a duplicate reload. The consequences of repeated reloading are often very dire, and two shells can explode simultaneously in the chamber, destroying the mortar and the gunners around it......

By the time Zhao Yu finished talking about all the things in his mind, it was already past the meal, and he didn't know if he was too good at it, or because of his majesty, no one went to the cafeteria to eat anyway. It wasn't until this side dispersed that the army regrouped and lined up to eat in the canteen, and he naturally followed a big pot of rice, and calculated the meal fee as usual.

"Your Majesty spoke so well today, and my subordinates have also been taught a lot!" Leaving the cafeteria, Zhao Mengjin and Chen Fenglin accompanied the little emperor around the camp, and he walked as he walked.

"I just want to talk about where to go, and I still need you to accumulate experience in training and actual combat, and you must not be too dogmatic!" Zhao Hao said with a smile.

"My subordinates understand and will inform them. But if it weren't for His Majesty's guidance, his subordinates would still have black eyes, and they don't know when they will be able to form an army! Chen Fenglin said with a wry smile.

"It's all up to you, that's all I can do!" Zhao Yu waved his hand.

"Without Your Majesty, how can there be subordinates today, everything is given by Your Majesty!" Chen Fenglin said with emotion.

"Is there a van there?" Zhao Hao saw a row of thirty or forty carts placed under the wall of the barracks, and he asked.

"Your Majesty, exactly." Chen Fenglin said, "My subordinates thought that we would go north to the Central Plains, but our army lacked cavalry, and we fought against the enemy on the plain. ”

"Oh, you have a heart!" Zhao Yu was a little surprised when he heard this.

He knows that the chariot has been used on a large scale as early as the Spring and Autumn Period, generally used to impact the enemy formation in wartime, with its rapid advantage and impact power to break through the enemy formation, and lay the foundation for the follow-up troops to win the victory, the use of chariots in the Spring and Autumn Period is usually the magic weapon for the princes to win, but in the late Warring States period, with the gradual increase of the role of the cavalry crossbow, the use of chariots is quite threatened, plus the restrictions of the application environment of chariots, mobility is not strong, can only be widely used in the northern plains, to the Three Kingdoms and Jin Dynasty, Vehicles are beginning to decline and are no longer the main class.

But in the period of the Eastern Jin Dynasty and the Northern and Southern Dynasties, the chariot once returned to the historical stage and once again served as the main magic weapon of the army, the main reason was that the northern and southern regimes had a long-term confrontation and constant warfare, and the southern regime was generally difficult to resist the attack of the northern iron cavalry, so it used to arrange the vehicle formation to resist the cavalry This route, but at this time, the type and role of the chariot have undergone great changes, and the active attack on the enemy formation in the past began to become a simple defensive weapon, and the chariot formation surrounded by the chariot blocked the cavalry.

"I'm ashamed, my subordinates are stupid, they have been lawless, and they still can't do it after training for a long time, so that the chariot formation is useless, and those chariots can only be temporarily put aside!" Chen Fenglin blushed and said.

"This is a bad statement, success or not is secondary, Chen Dutong can have the heart to change, and it is very rare to try to defeat the enemy!" Zhao Yu said solemnly, he knew that if the senior generals still stuck to dogma and abided to the old rules, they would be at a loss once the situation changed. And the fact that he can find ways to solve the difficulties he encounters in the future one step ahead of others is commendable.

"My subordinates are terrified, and I ask Your Majesty for some advice!" Of course, Chen Fenglin was very useful when he heard it, and asked for advice.

"I've only heard of the use of chariots, but I've never seen them, so I can't give me any advice. I think that since the Great Song Dynasty in the Jingkang period, Li Xiang had built a Wugang chariot to reject the Jurchen cavalry, and no one has mentioned it for more than a hundred years, what purpose does Chen Dutong want to achieve by training the chariot array? Zhao Yu waved his hand, he didn't know much about the use of the car array, and how to use it has long been lost, leaving only a glimpse of Feihong in the literature.

"Your Majesty also knows that the advantage of cavalry lies in its high speed and strong impact, which can easily disrupt the formation of the enemy's army, divide and annihilate it; With the formation of vehicles, the larger and harder vehicles become obstacles, which can first intercept the high-speed gallop of the cavalry, which is beneficial to maintain the integrity of their own formation, and provides shielding and protection for the soldiers. Chen Fenglin said after giving a salute.

"Secondly, the dense distribution of vehicles in the formation, the passage between the ranks is very narrow and tortuous, and it is difficult for the cavalry to quickly intersperse, and the space for action is greatly limited. Cavalry warfare requires a good combination of man and horse, and it needs to have a relatively sufficient space to exert its power, and the vehicle formation makes it extremely inconvenient to move, and it is naturally difficult to exert its combat effectiveness. ”

"In addition, our army can travel by car and carry a lot of baggage, which can reduce the burden on the soldiers, thereby enhancing self-sustaining strength and mobility. In addition, the marching army can be a camp in a chariot formation to prevent the enemy from attacking and harassing, and can use fewer enemies to more. ”

Chen Dutong said well, when Liu Yu of the Eastern Jin Dynasty went on the Northern Expedition, he used the chariot as the main weapon against the cavalry on a large scale, using the four-wheeled chariot as a mobile fortification, and used the chariot to protect the left and right wings when marching, and the chariot was surrounded by a chariot formation during the war, which mainly protected the flanks, the infantry was placed in the middle, the cavalry protected the rear, and the chariot formation was relied on to hinder the impact of the enemy cavalry, and the officers and soldiers in the array used long and short-range weapons such as bows and arrows and spears to resist the cavalry. He used this sharp weapon to break tens of thousands of iron horsemen of Nanyan and destroy Nanyan in one fell swoop. Zhao Yu nodded.

However, the car array also has many defects, it is more restricted by the terrain, and can only be used in flat and wide places. If you encounter a narrow and tortuous place, it is difficult to form a formation. and fear of fire or infantry. Because there is still a gap in mobility compared with cavalry, it is easy to fall into passivity during battle, surrounded by the enemy on all sides, and even if it wins, it is difficult to pursue the remnants of the enemy. However, in terms of overall effect, the chariot formation can effectively resist cavalry attacks, and it is still a sharp weapon against cavalry. ”

"Your Majesty's will, this car array is currently useless!" Chen Fenglin was first happy and then sad when he heard it, and he was quite disappointed.

"Eh, I've said a long time ago that no tactic can be invincible and conquer the world. Even the simplest tactics can defeat the strongest enemies if you choose favorable terrain and have the right conditions. Zhao Yu said, "The car formation also has advantages and disadvantages, we must use it flexibly, make use of our strengths and avoid weaknesses, and we can give full play to the power of firearms in our hands, and we can also be invincible." Therefore, don't be discouraged, you can go through the training first, explore the experience, summarize the tactics, and I will support you! ”

"Yes, the subordinates will live up to His Majesty's expectations and practice the formation!" Chen Fenglin was overjoyed when he heard it.

"That's it, I can't go hunting today, let's take a look at your car first and see if there is anything to improve!" Zhao Yu looked up at the sky, the sun was almost at the top, and walked towards the chariot......