Entering the end of the sixth month of the lunar calendar, that is, at the end of the seventh month of the new calendar, when the rice in the mountains began to gradually enter the final maturity period, the recruits who were responsible for rotating the peripheral reconnaissance found that on several trails leading to the new village, there were unidentified figures, and even in the position where there was no trail, there were observers who found similar figures, and these people looked carefully from a distance, and approached more and more boldly, and an ominous sign gradually shrouded the sky over the mountain village.

On this day, two strangers were carefully touching the wind turbine tower under the cover of mountains and shrubs, this landmark steel structure in this time and space, anyone who saw it at first sight would be shocked and curious, so these people will invariably try to get close to this building, to see this epoch-making thing up close.

It's just that they didn't expect that their curiosity was naturally taken advantage of by some people, when these two people were less than a hundred meters away from the wind turbine tower, four grassy figures suddenly appeared from the grass next to them, and before the two peepers could react, these four straw men covered their mouths neatly, made their hands, and stumbled, and they put down the uniforms for these straw men in less than two seconds. The straw people were not polite after putting down the two peepers, stuffing things in their mouths to avoid biting their tongues and killing themselves, and tied their hands behind their backs, making it not only uncomfortable but also extremely difficult to escape on their own, and then they were sent to a place in the mountain village blindfolded......

"Teacher, I caught three more today, one in the morning and two in the afternoon...... There are more and more of these people now, I used to catch one in three days, but now I catch three a day, and I'm tired of catching people......"

In the afternoon, Luo Dan walked into Deng Shifeng's shack, although his mouth said that he would not tire of catching these people, but the simple camouflage painted with the ash at the bottom of the pot on his face still could not hide the pride of success between his eyebrows. Of course, there is another technology that is also advancing by leaps and bounds.

"Did you recruit today?" Deng Shifeng, who was bent down and drawing on the newly made workbench, didn't raise his head, and asked about today's results.

"Recruit, the two who came in the afternoon were people from the south, and they all confessed before they could fight; The one who came in the morning was more tough, plus the plate and the awl had little experience, and the other party was willing to confess after tossing for a long time, so that the two of them were not only tired but also the guy was beaten badly enough, and now he is like a pig's head, and he can't even recognize his wife when he comes. But I judged that the two people in the afternoon were frightened when they saw the guy in the morning so miserable, so they confessed so happily......"

After a period of training and growth, Luo Dan has become more and more reckless and impulsive as he was at the beginning, and he began to learn to analyze various problems, accumulate and learn lessons from them; This growth is not only a good thing for him, but also for Deng Shifeng, who can devote his time to other projects and teaching, and can also teach more specialized and professional things in each training session.

"Hmm...... It's good to understand this, interrogation is a technical job, there are torture from the ** and psychological torture, there are different interrogation methods for different people, and at present, for these spies who came to investigate in advance, what you have learned now is basically enough. In two days' time, I will teach you some special techniques that can bring severe physical pain to the interrogated with minimal or no wounds...... Teach you this because your current methods are too violent and bloody, Xiao Sun on the other side of the mine told me, the people you sent over are either pig's heads or skin injuries, so these free labor not only reduce energy efficiency, but also Xiao Sun also has to prevent wound infection and waste this free labor ......"

Deng Shifeng mentioned earlier that the new thing to be taught made Luo Dan excited, but the criticism that followed made Luo Dan hurriedly nod and admit his mistake; After carefully drawing the last stroke of the drawing, after carefully checking that there were no mistakes or omissions, he signed his name at the bottom with satisfaction, and Luo Dan lost no time in poking his head to see what new things the teacher had come up with.

"Teacher, is this artillery? It seems to be a little shorter, the caliber is a little smaller, and how does it feel like it is hitting the sky? But this thickness and weight ...... It looks a lot lighter than the previous guns...... Hey? It's a stereotyped design drawing, and during the time I was out with people, the teacher made good things again? ”

has been with the teacher for so long, although Luo Dan's cultural level is not as good as Qin Tian Wang Ya's two teaching assistants, but there are no more people than him, and because he is Deng Shifeng's personal soldier, what he and Deng Shifeng have learned and seen is not much less than that of Qin Tian Wang Ya, for this kind of things on the drawing, Luo Dan said that he can certainly understand.

And the previous artillery he said was the three iron cannons that Deng Shifeng led people to get out in the last two weeks, this kind of iron cannon with a caliber of seven centimeters is no different from the traditional front-loading cannon in terms of structure, but because of the use of relatively high-quality steel, the cannon body is thinner than the artillery of this time and space, and it cannot be directly mounted on the rear loading gun, because considering that the current technical reserves in the mountain village are not enough, in case something goes wrong during the battle, an accident occurs at a gun position, and it is estimated that the professional military team in the mountain village will be less than half or even all of the people. Therefore, for the sake of safety, it is better to continue to use the more mature front-loading guns for the first time. Deng Shifeng: After testing the guns, they found that although the power of these three iron cannons was quite good, it could hit a three-kilogram spherical projectile to the first landing point of 500 meters under the condition of a standard charge; This distance is basically enough to meet the needs of mountain warfare.

But the problem is that because of the recoil of the artillery, this kind of artillery must be placed on the gun carriage to be fired safely, and the heaviness of the gun carriage is maddening, coupled with the mountain transportation environment here in the mountain village, this kind of cannon body plus gun carriage and iron wheels with a total weight of more than 300 kilograms can basically only be used as the last defense of the village; Even on the edge of the river, the gate that was placed on the checkpoint used to preset the blockade of the river was slowly transported to the mountain by Qin Er's young and strong laborers.

Another disadvantage of this kind of cannon is that at the same time, because the caliber of the shell is too small, it is very inconvenient to install the spiral delay fuse, and then the internal volume of the shell with a diameter of seven centimeters is too small, and the explosive power of black powder is limited, and the gunpowder filled inside some shells cannot even explode directly but burst through the fuse port and burn it directly...... And if you increase the caliber of the artillery, it does not have these disadvantages of small-caliber shells, and the power is large enough, but the weight of the gun is ...... It's going to be directly added again......

"Hehe, I actually got this thing out of me these days when you didn't do it, and you can see it...... That's right, this thing is indeed shot in the sky, but its power and convenience are absolutely outstanding, it's called a mortar! ”

Deng Shifeng looked at the artwork, fantasizing about the scene of this thing blowing up the other party when he pulled it out to beat people, and laughed gloomily.

Taking into account the tactical characteristics of the current mountain villages of stretching out their fists to hit people, as well as the actual factor of the small number of soldiers, as early as after discovering that the wheeled block gun could not meet the characteristics of mountain sports operations, Deng Shifeng considered getting a weapon that could be carried by a small infantry team as soon as possible, with great power and high accuracy, so that his team could have such a weapon to carry outside and be portable and flexible in the mountains in the event of a battle.

Originally, what Deng Shifeng wanted to get out the most was a rocket launcher like the 40 bazooka, which is commonly known as RPG, this weapon is not only easy to carry and simple, but more importantly, it can be aimed at and fire, that is, the shooter can directly aim quickly and hit the target, and has great flexibility and accuracy in battle; But after trying to use gunpowder instead of propellant propellant, Deng Shifeng found that it was difficult to do, and directly using gunpowder as propellant had high requirements for the loading of gunpowder, and the loading was too tight and too loose and did not form a material opening, which directly affected the effect of use, either it exploded in the launch canister, or because of the lack of thrust, it could not push the warhead with a full weight of two catties to fly a sufficient distance, even if it was the most successful rocket, its range was only 100 meters. And the most terrifying thing is that its rockets continue to burn after flying out of the launcher, and eighty percent of the rockets can spray the shooter into a roast before killing the target......

The frustration in the research of rockets can only make Deng Shifeng put this weapon aside for the time being, unless he waits for his chemical research and production to reach a certain level to come up with a better and more professional propulsion propellant, otherwise this simple and flexible weapon will really not be able to finally put it into practical use.

I can't get rockets, but there is another weapon in the later world that belongs to the direct aiming surname that belongs to the individual soldiers, and that is the recoilless gun. However, the recoilless cannon has high requirements for the barrel, and the products in the mountain village will certainly not reach the light and strong quality of later generations, in order to solve the current imminent armed crisis, Deng Shifeng can only reluctantly remove its half-axle sleeve from several trucks as a temporary replacement.

With the cannon body, it can be found that it is still unable to meet the use after the actual calculation, and the key constraint is the problem of propellant, the current black powder can provide limited explosive thrust, and a large amount of propellant is used to push the two-pound shell to the strike distance of about 200 meters, so that it is easy to add excessive gunpowder to the tube body to turn this steel pipe into a large blasting canister...... Moreover, after each launch, the thick smoke produced by a large amount of black powder can turn the launch site into a short-term smoke and poisonous gas field......

After the setbacks in the research of both weapons, Deng Shifeng gritted his teeth and secretly swore that as long as he had the conditions in the future, he would start the research and production of smokeless gunpowder...... However, the absence of more suitable gunpowder does not mean that the development of this weapon has to be dismounted, after all, the threat faced by the mountain village is getting bigger and bigger, and Deng Shifeng really can't be able to be down-to-earth in his heart if he doesn't get this kind of portable weapon for a day, and there is no better condition under the premise, Deng Shifeng has only a choice, considering using black powder as a propellant to make a simpler mortar shell.

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