None of Lu Xiangsheng and the others expected that the originally conservative generals of Liaodong would become highly motivated one by one when they heard that the Jiangning Army was about to join the battle, as if victory was just around the corner, which couldn't help but surprise them.

The original Beijing camp was rebuilt under the leadership of Yang Feng, and Yang Feng still holds the position of the governor of Jingying Rongzheng, but this is only the nominal governor, in fact, Yang Feng has handed over the management of Yang Guozhu, Hu Dawei and Lu Xiangsheng since he set up the shelf of the Beijing camp, and has never interfered in the affairs of the Beijing camp again.

As for the reason, everyone understands that now Yang Feng already has a prestigious Jiangning army in his hands, if he catches the Beijing camp in his hands again, what will you make Zhu Youxiao, the emperor, think? I'm afraid that no emperor would put his safety on one person, right?

Although Lu Xiangsheng, Yang Guozhu and Hu Dawei are all generals promoted by Yang Feng, Yang Feng has always kept a cautious distance from them, and they rarely interact with each other on weekdays, and none of them have ever been to Liaodong before, so even if they know Yang Feng's past achievements, they never thought that Yang Feng would have such a big reputation in Liaodong, so that as soon as these veteran soldiers heard the news that Yang Feng was coming, they were as excited as if they had been beaten up.

Seeing the passionate generals, Lu Xiangsheng couldn't help but feel like a big husband in his heart. And Lu Xiangsheng is also proud, after seeing the scene in front of him, not only was he not depressed, but he set off his fighting spirit, he clenched his fists, and secretly said in his heart: "What Jiang Ninghou can do, I can too!" ”

Just when the morale of the Liaodong generals in the city was high, the rate of fire of the artillery outside the city, which had frequently spewed fire, began to slow down.

Seeing that the rate of fire of their artillery began to slow down, the Manchu generals who were dancing happily asked puzzled: "What's the matter, why doesn't our artillery fight?" ”

In this time and space, Dolgon's mother Abahai was not forced to be martyred by Huang Taiji and Dai Shan in the name of Nurhachi like in another time and space, so the bitter and hateful Dolgon did not appear in this time and space now, and now he is only a fifteen-year-old boy, so he couldn't help but ask at first: "Tong Yangxing, why don't you fight the good artillery, is it that your soldiers are lazy?" ”

Tong Yang smiled bitterly: "The fifteenth elder brother is angry, it's not that those gunners are lazy, but our artillery has been firing for almost a quarter of an hour, and the barrel has begun to get hot at this moment. ”

"Is that so?" Dolgon scratched his head and said with some emotion: "It would be nice if there were dozens or even hundreds of artillery, and at that time, hundreds of artillery pieces would fire at Jinzhou together, and I am afraid that it would not take half a day to capture Jinzhou City." ”

Many Manchu generals pouted when they heard this, just to build these six artillery pieces have already spent 300,000 taels of silver, if you build hundreds more, I am afraid that everyone will have to be poor as pants.

However, Ning Wan said, "The idea of fifteen elder brothers is not impossible, let's take Da Ming as an example, according to the news sent by the spies, in the past two years alone, Da Ming has begun to try to cast cannons with iron molds, which is much stronger than us using clay molds to cast cannons, both the speed and cost of casting cannons have begun to drop significantly, if we can learn the method of casting cannons with iron molds, maybe we can really cast hundreds of cannons." ”

"Hmm!"

Hearing this, most of the Manchu generals showed a bewildered look on their faces,

"Iron mold cannon?"

Unlike many Qing army generals who looked confused, Tong Yangxing was excited, and he didn't care that Huang Taiji was still here, grabbed Ning Wan's sleeve and asked anxiously: "Lord Ning, can you get this kind of iron mold cannon casting method from the territory of Daming, if we can also use iron mold to cast cannons, it can not only greatly reduce the cost of casting cannons, but also shorten the time of casting cannons!" ”

Since being appointed by Huang Taiji as the commander of the Han Army Banner and ordered to cast cannons, Tong Yangxing has consulted a lot of information, and he has been learning to cast cannons for more than a year, and he has become most of the experts, so he naturally knows the shortcomings of the current traditional use of clay molds to cast cannons.

The use of clay molds to cast cannons not only takes a long time to manufacture (plus drying at least a few months), but also although the clay molds are said to have been dried, there is still moisture in them, and after the casting cannons are poured into molten iron, the high temperature will inevitably turn those moisture into water vapor, and then the water vapor enters the iron, resulting in the honeycomb phenomenon of the cast artillery, such a cannon is easy to explode, so in order to reduce the possibility of exploding, the artillery made of clay molds is usually very thick, and the aperture is small (the cannonball is small) and the power is small.

In the Opium War in another time and space, the range and power of an iron cannon weighing thousands or even tens of thousands of catties of the Qing army were inferior to those of the British, which were ten times lighter. Moreover, the clay mold cannon also has a characteristic that it is one-time use (after the casting is completed, the clay mold is broken and the barrel is taken out), and there is no reuse, which not only has a long construction period, but also causes the caliber of the cannon to be cast, so that it is impossible to form a large-scale production of shells.

This also caused the mud mold casting cannon not only different specifications, and the yield is very low, usually the casting of the artillery pass rate is only one percent or even cultivated land, which also caused the shortcomings of high cost and long time, and the iron mold casting cannon does not have these shortcomings, it not only casts fast, and the iron mold can also be used repeatedly, forming large-scale production.

First of all, you have to get the coke blast furnace ironmaking technology (coke provides high temperature and strength), water turbine technology (power blast blast), hot air technology (cast iron hot air pipe or refractory brick regenerator), and then the manufacture of cooling water pipes.

Strictly speaking, the above technologies can not be mastered at the level of today's Ming craftsmen, but who let them have a hanging Yang Daguan, under the promotion of Yang Feng, after more than two years of hard work, the industrial level of the Ming Dynasty has been significantly improved, and these technologies are not at all those who have just come out of the white mountains and black waters, and the brains have not yet been fully civilized Manchu Tartars can master.

Seeing Tong Yangxing's anxious appearance, Ning Wan shook his head with a wry smile and said: "Lord Tong, Daming has a very close look at the method of iron mold casting cannons, and at present, only the craftsman workshop in Jiangningwei, Nanjing, can do it, and our people can't enter there at all, besides, the lower officials have also heard that iron mold casting cannons require many fine tools, and we don't have them here at all, so it's really ...... to get this technology in hand It's just too hard. ”

Ning Wan originally wanted to say that it was impossible, but seeing Tong Yangxing's disappointed appearance, I could only change my words halfway.

But even so, Tong Yangxuan naturally understood what Ning Wan meant, he sighed and shook his head with some disappointment: "It's a pity...... It's a pity ......."

Dolgon on the side couldn't see me in front of everyone, he sneered: "It's just a method of casting cannons, since you can't get it, it doesn't matter, we still have long knives and arrows, the Han people just know some tricks and tricks, what is there to envy, when we enter the Central Plains one day, those things are all ours!" ”

"Cut!"

The generals of the Qing army on the side made a look of contempt in their hearts, the newborn calf is not afraid of the tiger, it is a person like Dolgon, or it is more appropriate to use the word ignorant fearless to describe him, now say it so loudly, don't wait until you run into Jiang Ningjun and be beaten and crying.

"Good!"

It's just that just when the generals were disdainful, Huang Taiji shouted loudly, only to see him look at Dolgon appreciatively and said: "It is excellent that the fifteenth brother can have this ambition, and when he enters the Central Plains in the future, I will definitely send the fifteenth brother as the vanguard of my army!" ”

"Brother thank you, Your Majesty!" Receiving Huang Taiji's appreciation, Dolgon was also happy, and hurriedly saluted Huang Taiji to express his gratitude, and Huang Taiji also smiled and waved his hand to signal that he was exempt from courtesy.

Watching the performances of the two brothers one after the other, the generals of the Qing army were also tired, and this drama was too obvious, I know that you want to boost morale, but you can also get rid of it, can you say something reliable, and enter the Central Plains, have you asked the Jiangning Army?

However, although many people saw Huang Taiji's intentions, no one would jump out to interrupt so uninterestingly, and even some generals even clapped their sycophants and sang praises, and the atmosphere in the whole tent was very harmonious for a while.

"Report!"

Just when Huang Taiji was in a good mood, a voice sounded outside the tent, and a Goshha strode in and knelt down to beat Huang Taiji and said loudly: "Your Majesty, Shengjing sent someone to report urgently!" ”

"What, Sheng Jing is here?"

Hearing this, many people's hearts suddenly jumped, could it be that something happened to Shengjing?

Others are nervous, and Huang Taiji, who is the emperor, is even more so, you must know that Shengjing is the nest of all of them, his wife, children and all his belongings are in Shengjing, if something happens to Shengjing, then he will be finished, he said calmly: "Bring people in immediately!" ”

Soon, a dusty cavalryman was helped in by two Goshha, and as soon as the person entered the big tent, he knelt down in front of Huang Taiji with a "poof" and cried: "Your Majesty, the big thing is not good, Yang Feng led the Jiangning army to surround Shengjing." They are bombarding Shengjing's city walls with artillery, and at this moment, the eldest brother is leading Shengjing's men and horses to resist desperately. Your Majesty, hurry up and send troops back to help, if it's too late, I'm afraid Shengjing will lose! ”

"Poof!"

As soon as Huang Taiji heard this, he felt a burst of Venus rising in front of him, and the whole person sat heavily on the chair. He never thought that he would send troops to attack Jinzhou, and that Yang Feng would turn around and surround Shengjing with people, he was going to dig up my foundation.