One morning, Yang Wenli was doing a serious and meticulous experiment in the workshop, but a guard from the Commander's Mansion came to report: "The commander, General Zhang, the deputy general of Lushun, is visiting. ”

"! On this cold day, what is he visiting Zhang Pan? Good! I'll go right away. Yang Wenli was interrupted from the experiment and couldn't help but burst into foul language. Yang Wenli is a typical science and engineering otaku, he has no time or interest in outreach, and even when others come to him, he is a little impatient.

Zhang Pan's family braved the cold to come to Liaodong from the south of the Yangtze River and told him the extremely bad news that the court was going to remove him from his post and investigate him.

Zhang Pan is a frequent visitor, and the weather is too cold, so he commands the guards of the mansion and invites him to sit in the hall and wait for Yang Wenli's arrival, but how can he still sit still! He was like an ant on a hot pot, walking around the room.

When Yang Wenli stepped into the door, Zhang Pan stepped forward with an anxious face and begged: "Commander Yang, this time I, Zhang Pan, is in trouble, last year, the Ministry of War sent a letter asking me to find out about your Black Armor Army, and now it has been exposed, the emperor has issued an order to remove me from my post and investigate, Commander Yang, what do you say I should do?" ”

Yang Wenli smiled easily and said with relief: "General Zhang, don't worry, since the matter has happened, and Chongzhen personally ordered it, then there is no room for turning around, with all due respect, if you are caught, the ending will definitely be very tragic......"

Before Yang Wenli finished speaking, he was interrupted by the anxious Zhang Pan and said, "That's it!" That's why I came to you for ideas, and I hope to help, I Zhang Pan is grateful! ”

What Yang Wenli said was nonsense, if it was simple, Zhang Pan would come to him in the cold? Of course, Zhang Pan is also pretending to be a gesture, he has reached this step of the field, and he still puts on his name as the deputy general of Lushun, in fact, he only has three ways to go, if there is no black armor army, he even has only two roads, one is to be captured obediently, and the other is to take refuge in Jiannu as a traitor.

To be honest, before Mao Wenlong died, except for Sun Degong, a turtle grandson, there were few traitors who automatically surrendered to the Tartars, so Zhang Pan couldn't make up his mind.

Now that there is the Black Armor Army, there is a third way to go, although the strength of the Black Armor Army is still weak, it is not enough for 10,000 troops, and it is still a grass team for the time being.

But the Black Armor Army also has its advantages, that is, it is well-equipped and powerful, you see that he occupies Changsheng Island, and the Tartars did not dare to attack the island, but just sent troops to monitor, which simply lost the prestige of the Jurchens who were invincible in the world.

"General Zhang, forgive Yang for bluntly saying, you only have two ways to go, the first is to take refuge in Jiannu as a traitor, and from then on the enemy of the Ming army, but also with my black armor army, if you are still in Lushun or Liaonan, I will definitely send a large army to annihilate your department.

The second one! Maybe General Zhang can't accept it for a while, that is, to take refuge in our Black Armor Army.

My Black Armor Army is a force independent of the Ming Army and Jiannu, although the strength is still weak, but self-protection is more than enough, self-protection can ensure that General Zhang is worry-free, Yang said from the bottom of his heart, please General Zhang to take it by himself. ”

Yang Wenli didn't beat around the bush anymore, and directly said two choices, in fact, there was only one choice, because as long as Zhang Pan dared to take refuge in Jiannu, then he would definitely eliminate him as soon as possible, lest more traitors appear in the future, and at the same time, it was also an example to set an example, so that latecomers should think twice before acting, and if they take refuge in Tartar, they will also lose their lives.

"Commander Yang, this ...... This......? It's a big trouble, so please allow me to go back and discuss it with my subordinates. ”

Zhang Pan couldn't pull his face for a while, mainly because he used to treat Yang Wenli on an equal footing, but now he wants him to be a subordinate, and he is difficult to turn for a while, so he pretends to go back to discuss with the subordinates.

"General Zhang, although he is pleased, my Black Armor Army welcomes General Zhang's arrival at any time." Yang Wenli replied with an indifferent smile. Since Yang Wenli betrayed the Bayan patriarch, he has new ideas about the army that has been incorporated and surrendered, and he still doesn't dare to ask for those armies at both ends of the head and rat!

Zhang Pan said that he wanted to go back and discuss with his subordinates, it was really an excuse, to Mingwei, the soldiers were generals, there were real combat effectiveness, and the professional army was generally the main general's family, the strength of a force depended on how many families the main general had, and the rest of the soldiers were no different from those called Huazi, they couldn't eat enough, it was impossible to train, where did the combat effectiveness come from?

Zhang Pan is gone, he is very depressed, he is now without the protection of the Ming Dynasty, it is impossible to survive alone in Liaodong, just a military salary, grain and grass, he can't solve it.

In addition, he had to resist the attack of the Ming army of Dongjiang Town and the Denglai Water Division, and behind him was a strong Tartar, he only had 3,000 troops, how could he resist?

In fact, Zhang Pan came today to form an alliance with the Black Armor Army, but he was too weak and got into trouble, so Yang Wenli naturally couldn't agree.

"Master, I'm afraid this Zhang Pan is thinking too much, and the slave estimates that he wants to form an alliance with my Black Armor Army to fight against the Ming Army!"

Yang Liren, who was standing beside Yang Wenli, looked at Zhang Pan's departing back and said to him.

"Huh! It's a bit naïve, he's not worth the price. Yang Wenli also laughed and mocked.

This matter has passed like this, Zhang Pan has been a big brother for a long time, and he will not bow his head until he has to, and it will not be long before he will fight with the Ming army, or he will be captured with his hands tied, and then he will know the depths.

Zhang Pan's visit did not affect Yang Wenli, and he still did the experiment step by step.

The firing pin experiment is one thing, the firing pin in the barrel cannot be fixed casting, because then he will not be able to quench the firing pin.

So he had to open the bottom of the mortar barrel with a wire and twist it into it with a screw fitting, so that the firing pin could be replaced, which could improve the service life of the mortar.

In fact, he changed it in this way, and absorbed the advantages of the Devil Type 98 grenadier canister, that is, he could adjust the firing pin up and down to adjust the range of the mortar.

Imagine that the firing pin ignites the launch of the propellant, and in the middle and bottom of the barrel, the range is naturally different due to the difference in space.

The general mortar does not have this function, it is the original creation of the little devil, the general mortar is to adjust the elevation angle to adjust the range, in fact, there are great drawbacks, one is a waste of time, and the other is difficult to measure.

According to the test firing data, the value can be calibrated on the adjusted nut, and the firing range can be adjusted to several hundred meters, which is very simple and accurate, and is suitable for illiterate artillery.

This change also caused a lot of trouble, and Yang Wenli had to cast screws and wires, both of which were very time-consuming.

The barrel is cast first, and then the screw is cast to the size of the bottom of the barrel.

The barrel is a very stressed part, and it is no longer a simple casting, but a large hot extrusion table.

The hot extrusion table is large-scale, four force arms crossed in a cross shape, each one is three meters long, each force arm is arranged with three people, a total of 12 people, with leverage, this extrusion force is already very huge, there are dozens of hundreds of tons of force.

…… To be continued