When mercury lysate is not clue, flint becomes the most ideal substitute. At the beginning, Cai Huang had this idea and had the idea of ​​directly crossing the flint gun, but it did not meet the requirements technically. Now what was placed in front of him was the flintlock pistol that had been made, and a two-handed rotary cannon that looked similar to a multi-barrel musket.

The flintlock pistol is similar to the rotary cannon. It is sparks stimulated by flint friction steel sheets to ignite gunpowder in the fire transmission hole, and then ignite gunpowder in the gun chamber to fire lead balls. However, his rotary cannon failed. Even so, the flintlock rifle cannot successfully ignite gunpowder every time it pulls the trigger.

The principle of flint inspiring Mars to ignite the gunpowder in the fire transmission hole is the same as the gunpowder directly ignite the gunpowder in the gunpowder pool. Both sides have their own advantages and disadvantages. The gunpowder cannot be successful every time. The gunpowder can ignite the gunpowder 100% ignition. However, in an emergency, it is difficult for the gunpowder to fire as soon as possible. The flint in the flint can fire at any time and anywhere. Although it may not be successful, it is more suitable for more bumpy cavalry.

Cai Yan picked up the flintlock pistol and fiddled with it, repeatedly pulling the trigger. He looked at the flint blade clamped with the bird's beak to rub the sparks coming out of the steel plate, and nodded with satisfaction. His little mouth was also the boss...

"hehe……"

"The retreat is over-"

Cai Yan left the flintlock pistol to his waist, and hurriedly packed various tools into a special tool box. When packing the drawings, he did not treat the tools as rough as he did. He carefully examined the drawings one by one, carefully stacked them together and put them in the wooden box in order.

"San'er, clean the here carefully. All the paper balls and paper scraps are burned clean and keep them confidential!"

San'er, who helped to clean up, nodded and agreed: "Don't worry, Grandmaster, San'er knows the rules of keeping confidentiality and will never let outsiders intervene in cleaning up."

"Um."

Cai Huang nodded lightly, and asked casually: "Yingtian hasn't made any trouble recently, right?"

San'er thought for a while and said, "Apart from the replacement of Yingtian Prefecture, there seems to be nothing big. Even if the Yingtian clan wants to make trouble and with the wife here, they can't make any money."

When he heard the word "Madam", Cai Huang was stunned and said in confusion: "My mother is here, Yingtian? Something happened in Hangzhou?"

San'er shook his head and said, "Nothing happened in Hangzhou. I heard from my wife that Hangzhou is in good condition, and all the garrisons are also training normally. The Third Division... It seems that Commander Wang is a little dissatisfied with the generals of the Third Division, and punished many battalion companies..."

San'er scratched her head again and said, "There are the Second Division in Hangzhou and the Three Pavilion Masters in the Palace. I think it should be fine, otherwise the wife would not have come to Yingtian to accompany the general to celebrate the New Year's Eve and the New Year."

When Cai Yan heard the "New Year's Day", his frown loosened his frowns, and he didn't care about his face. The black paint on his hands was black, so he ran out with his belt.

"I have carefully packed the things for me..."

San'er was about to say "take a bath" when the person had run away and had to hurry up and follow the workshop with two wooden boxes.

"You guys clean the room carefully!"

In the end, San'er did not forget the words of the Grandmaster. He loudly ordered the young craftsmen to clean up the workshop and followed the guards out in person, for fear that the Grandmaster would be subjected to other people's plot.

The military workshop is affiliated with the baggage army, but the military workshop is too important. Not only are the various equipment carried by the military, but more importantly, the craftsman is the apprentice of the craftsman who stays by Cai Yan anytime and anywhere.

It is easy to train military generals, and craftsman apprentices who are proficient in mathematics, drawing, testing, and casting, but it is extremely difficult to train. Cai Yan dared not train the arrested Song craftsmen, even the top craftsmen with superb skills, not only does they carry traces of the Song State, but what is more troublesome is that Song craftsmen are also merchants in a sense. They are flexible and smart, but they are better to cultivate beggars and orphans who are like white paper.

The workshops with the army are too important. Cai Yan personally trained a group of craftsmen and apprentices. Not only are they specially protected by the guards, but the workshop camps are also connected to the Central Army camp and are the key protection targets of the First Division.

The workshop was very close to the general army and was almost connected. Cai Huang had just run out of the workshop compound and had not yet rushed into the temporary general's mansion. When he saw the man guarding the mansion, he felt a sudden slap in his heart when he saw that it was Yelu Sugan, and then he felt inexplicably angry.

"asshole……"

"San'er--"

Cai Yan pointed at Yelu Su, who was at a loss, and roared angrily.

"Take it down and give it thirty whips to me!"

San'er didn't think about it. After waving his big hand and "take it down", Fang Tianding followed him. Deng Yuanjue stepped forward and held down Yelu Su, who had no resistance. He stripped his upper body and whipped it up.

Looking at the Liao man who gritted his teeth and said nothing, Cai Yan ignored Su Mei, Zhao Fujin, Lu Tao and others who came out of the mansion to inspect, and glared at the bloody Yelu Sugan with a cold face.

"Young master beat you, you can be convinced-"

...

Seeing him stubbornly bowing his head and saying nothing, Cai Huang became even more annoyed and angry. He grabbed his whip and forced him to raise his head, staring at Yelu Su who was still not looking away.

"You are the leader of Niu Niu's personal army—"

"Who asked you to give up your master and come to Yingtian—"

"Mr. Prince-in-law—"

Perhaps it was because Cai Yan's hands were a little stronger, or perhaps it was because his words stimulated the Liao Dynasty man and roared at Cai Yan, but he turned his head away and didn't want people to see the grievance in his eyes, which was wet.

"I'm not the leader of the princess's personal army-"

"I...I'm just a slave army-"

...

"snort!"

Cai Yan let go of the whip in his hand and waved his hand. Fang Tianding and Deng Yuanjue stepped back a little, but his big hand pressing the hilt of the knife did not relax at all, as if he was about to chop down Yelu Sudan, who was kneeling at any time.

"A bunch of soft eggs..."

"Get up—"

Cai Yan didn't know who to scold him. After roaring, Yelu Su dared to hesitate for a moment and stood up with the pain on his body.

"snort!"

Originally, the flint flintlock rifle was successfully developed, and Ah Niang came from Hangzhou to spend the New Year with him. The best mood was completely lost because of Yelu Suda.

Cai Yan was not stupid, Yelu Yuji and others rebelled, and they involved the rebellion of King Yelu Aoluwo of Jin, and the biological mother of Niu Niu Niu, Xiao Sesse. Yelu Aoluwo was adopted by the royal family to the Prime Minister's Office as the heir. With the influence of the Han family, Yelu Yanxi would never easily kill the eldest son of the emperor who was adopted by Han family, but Xiao Sesse was not included. If Cai Yan did not exist, he would cut it. But even so, after Cai Yan took back the Treasure Island and after everyone evacuated the Liao Kingdom, it was hard to say whether Yelu Yanxi would slash Niu Niu and her mother Xiao Sesse with anger.

The fact is that Xiao Sesse and Niu Niu were imprisoned in Yanjing together.

Yelu Yanxi was furious and did not kill the mother and son, so naturally there was no need to cut people's heads afterwards. Niu Niu and Xiao Sesse were still safe, but... But what is the situation now? The Jin Dynasty is attacking Liao Zhongjing. Once Zhongjing falls, the chaos in Liaoxi will inevitably fall immediately, followed by the panic Liao Nanjing.

When the situation is stable, everything can be calculated. When it is turbulent, any accident is normal. Yelu Sudan ran back to Yingtian when Yanjing was about to be in chaos. How could Cai Huang not be angry?

Su Mei knew very well the importance of Niu Niu Yu Liyan to the Cai family and the Song State, but what can we do now?

"Don't worry too much, Niu Niu is very good now, there will be no danger in a short period of time."

Seeing that her son's face was black and black, she wiped him with a handkerchief a few times as usual. Although she was just doing some useless work, it was difficult for Cai Yan to wipe off the black and gray on her face with a handkerchief, but she felt less anger and worry.
Chapter completed!