"Woo......"

"Click, click, click......"

Obviously, the sound of this train is a little difficult, well, at this time, this train, is going up the city wall, that is, this city wall, there is a separate extra place, become a train track, here, it is different from the usual ladder on the city wall, well, it is a relative two train ladders, one side up, one side down, the turnouts under the city wall are also more ruthless, so, there is a separate turnout command room, just below the city wall.

"Daddy, we're on the city wall, the train is on the city wall?"

Bao'er is curious, this, perhaps, will be a new content in the story she told, if in the future, many city walls will be changed like this.

"Woo, click, click, click......"

Not long after, the sound of the cheerful train sounded on the six-zhang high city wall.

"Daddy, daddy, why is the battlement stretched out, ah, the Lun family knows, in this way, it will reduce the danger and make it easier to defend."

Bao'er, a little talking to himself, uh, at this time, Niu Baobao was silent, no longer paying attention, this city wall or something, it seems, it has nothing to do with her, well, these things, Li Er cares, and has known it for a long time, naturally, Niu Baobao doesn't need to care, but, Bao'er, this is a storyteller, naturally, these new things will become the content of the story, uh, recently, Niu Baobao likes to make up his own stories, the content of the story is not bad, and the babies like it.

The battlements that stretch out, this is the advantage of having reinforced concrete, especially this reinforced concrete, which is still home-made, well, even if it is not sold out, it is necessary to build its own city.

No, the battlements on the city wall are made into small balconies, or balconies with pavilions, on which three people can stand, and some war supplies, that is, when defending, one can be on the left, one on the right, one on the front, and the crossbow arrows are used against the front, not too fast, this defense is used, and, in the direction of the front, there is a scissor top below, well, when there is a ladder erected on the battlement, you can use the scissors top to push the ladder out, Or through the leakage, put the burning oil down, in general, to pass through the battlements, it is difficult to go up the city wall, and on both sides, the ladders erected on the city wall, there is no need to aim, direct shooting becomes, well, after all, you can shoot people, but not flat battlements, but also lower your head to shoot, here, flat shooting is done, the strength is large, the strength is small, all are successful, however, this arrow, but a special arrow, in Yang Qiao's hands, there is no empty arrow.

"Daddy, the design of this battlement is so good, stomping on the stomping, you see, if you shoot on both sides and hide behind here, you can not only see the enemy, but also shoot the enemy conveniently, and don't worry about the arrows shooting from the front, in this way, the frontal defense is weaker, but what, the shield below is raised, and the frontal defense is the line of sight is poor, but the people on the walls on both sides help defend, it's good, it's good."

This is to show that almost every battlement will have a defensive look, just for Yang Qiao to test, and in this way, on the contrary, without Yang Qiao's explanation, Bao'er will understand it.

"Haha, our Bao'er has become a military strategist."

Yang Qiao laughed and joked about Bao'er, in fact, it's not a joke, it's hard to say whether Bao'er is a military strategist, at least, this is talking about soldiers on paper, it's a hard mouth, well, there are a lot of military books that Yang Qiao can find, Bao'er understands them, not to command the war, but for the convenience of storytelling, and even, the thirty-six strategies that Yang Qiao compiled were also memorized by Bao'er.

Thirty-six plans, uh, at this time, there should be a prototype, and it has not really been written yet, no, it was actually taken out by Yang Qiao first.

"Daddy!"

Bao'er is a little embarrassed, uh, it's rare, Daddy can still praise himself recently, I don't know when, Daddy doesn't pay much attention to himself.

It's not that he doesn't pay attention, Yang Qiao just thinks that Bao'er is more mature, so he cares a little less, and it seems that he will have to praise him in the future.

"Hehe, Bao'er's nieces and nephews are all great military strategists, more powerful than some old generals, and some old generals don't say it's so good."

Niu Baobao said admirably on the side, why don't you have that spirituality in the military.

What does it mean to have a battlement on the so-called battlement, that is, the battlements that stretch out, that is, the balcony, is also a battlement-style building, that is, there are walls and shooting windows, no, the front, there are wallings blocking both sides, and the two sides, naturally, it is impossible to shoot up next to the city wall, and those who can lean on the city wall are waiting to climb the city, so this is relatively safe on both sides, and it is easy to shoot arrows, and the arrows and arrows are in the crowd, that is, there are no arrows, and it is easy to throw stones. Directly with a little effort, it is an arc to fall, smashing people, it is still very easy, and even, you can go directly down the city wall, eh, there is nowhere to hide from the siege.

Actually, it's not that the city wall of the Tang Dynasty doesn't have such a defense, but this kind of defense is all at the city gate, above the city gate, it's such a design, throw it down directly, but the city gate, how many, moreover, is a city wall with many city gates, and it's far away, that's the big city, as far as the Yang family's small city is concerned, by standard, this city gate doesn't have that kind of defense.

"Daddy, daddy, what is this, one-armed hanging?"

Suddenly, Boa seems to have discovered something interesting again.

Eh, one-armed crane, there really is, a battlement is installed on the side of a single-arm crane, not very high, why do you want to install this thing, mainly, this train on the city wall is more tired, just now, I pulled dozens of people, I was tired of panicking, well, that is, the road to the city wall is a little steep, so, Yang Qiao's design is that when the train goes up the city wall, it is a single car up, that is, the personnel have to come down, and then, no matter what the loading or doing, it is to use a single-arm crane to lift up the car from under the city wall, that is, the cannon, When the train goes up the city wall, it is unloaded, and after going up, it is hung up with a single arm crane, well, the main thing is this cannon, or rather, the cannon made at this time is a bit heavy, thousands of pounds and a door, so if the train pulls the cannon, don't go up, if you want to go up, you have to use the locomotive to push more, perhaps, there are not so many locomotives in the city at that time.

However, when the single-arm crane was installed, Yang Qiao suddenly found that if he used two single-arm cranes to lift something, and then threw it under the city wall, whether it was a ladder or a person, it would be smashed directly, so Yang Qiao had some more materials and built so many hanging platforms, well, temporary, there were not so many single-arm cranes, only the hanging platforms could be designed, and then, and then slowly installed, at this time, there were only these single-arm cranes on the train at the city wall.

"Ah, the Lun family understands, this, if the two of them carry a long, heavy object, and then, Daddy, can this hook be reversed as fast as possible?"

"This, you don't need to reverse the hook, just design some separate grappling hooks, this grappling hook, as long as you smash a pin, it will be immediately loosened, well, look over there, oh, it's too late, wait for time, you take your time to study it."

The construction of this city wall is wide enough, otherwise, so many craftsmen, as well as machinery, have been built for several years, no, the platforms on both sides of the railway, in fact, are not too narrow, can put a lot of things on it, perhaps, the city wall of this small city of the Yang family, will become a sample, there will be a lot of city walls will be changed like this in the future.

"Daddy, daddy, I finally understand, why did you put the artillery on the train, you see, the stones below here, and the sleepers, are all things that can absorb shock, and then, the battery on this train, there are also shock-absorbing things, so that the vibration of this artillery, the harm to the city wall becomes very small, in this way, the power of the artillery can be increased, and there is no need to change anything to the city wall, just change the train battery."

The test of the cannon, Yang Qiao naturally took Luan'er to see, so, some calculations, Luan'er also participated, naturally, what kind of recoil, vibration, she knows, so, this combination of shockproof, Luan'er can see it, and at this time, Niu Baobao and Bao'er are a little stunned, eh, I don't understand.

"Sister, sister, this, when will I explain it to the Lun family, the story of the Lun family should be used."

"I, I also use it, I don't know, can the wall of Chang'an City be renovated?"

At this time, Li Er was also thinking about this kind of thing.