Lao Luo looked at this elder with a smile who had been very calm since he entered the tent, and his expression with his mouth wide open at this moment seemed to be able to swallow a goose egg.

The parchment depicts a vehicle envisioned by Lao Luo, perhaps something that has never appeared in history. The top is designed with a large ball sewn on the bottom of the sheepskin, and a heated air thing is set below, yes, it is the principle of a hot air balloon, but because of the fuel, it may not be able to be lifted into the air, it doesn't matter, anyway, it just doesn't need this thing to rise to a high place, hang a wooden fence bed with a rope to carry people, make a driving wheel in front, adjust the counterweight, anyway, this thing only needs to be one meter high from the ground, as long as two horses, it is enough to pull this weightless thing.

As for the use, of course, it is to carry those old and weak women and children, and it is estimated that even the oldest local Li family elder will no longer have any worries about traveling.

Holding down the drawings with his hands, Lao Luo began to explain the purpose of this thing to the somewhat sluggish Elder Dunne, as well as the requirements for production, in Lao Luo's opinion, this thing is really not difficult, it does not need to be lifted too high, so there is no need to consider the difficulty of making materials, maybe it may require a lot of skilled manpower to make, but this is not a problem for the craftsman camp at all. The only thing that is a little difficult is the acquisition and placement of fuel, which happens to be located in Baku, which is one of the earliest developed oil producing areas, and there is no methane butane that is easy to prepare in later generations, so it is not bad to try it with oil for the time being. Although it is a little simpler, it is estimated that it is enough, as for the improvement or something, it depends on the needs of the future.

Well, there's a little bit of a problem, fire and safety is an issue, and that's where personnel training is needed.

Lao Du's head was a little messy, he understood the production requirements and the selection of materials that Luo Kaixian said, but he had no idea about this thing at all, even if he had been doing metalworking and carpentry all his life, but he could float, he couldn't believe it at all, "San Lang, can this thing float?" Don't use wheels? ”

"Old Du, have you seen Kong Ming Lantern?" Lao Luo couldn't explain the principle of hot air balloons, so he had to use the most illustrative example.

"I've heard that there is a record in the book that the loser has such a skill, but I have never seen it." Lao Du can only say that he is lonely now, because he really doesn't understand.

Lao Luo sighed in his heart that the artisan camp may not be bad now, but their knowledge shortage is also very serious, perhaps because of the loss of personnel who have stayed here for many years, or maybe it is because many craftsmen like to keep a hand, which has caused the lack of craftsmanship. He took out a blank piece of parchment, found a charcoal pen, and explained it to Du Ne while drawing on it, and only after saying that he made a summary, "This thing is as simple as that, use woolen paper and straw as a cover, and put half a candle inside, Du Lao can try it when he goes back to the house." ”

"It's as simple as that?" Lao Du was a little skeptical.

"That's right, and then say that this car is actually an enlarged Kong Ming lantern." Lao Luo didn't explain much, and when this stubborn old Du Tou went home and tried Kong Ming Lantern, he would understand.

"This car...... Let's make a name, right? Lao Du saw that Luo Kaixian was so sure, so he no longer hesitated.

"Well, let's call it a floating car." There is nothing to worry about in the name, so Lao Luo casually came up with one.

"If this... The floating car is really feasible, so the old and weak women and children don't have to worry about the hardships of the long journey. Lao Du sighed a little, he found that he might not have felt as much emotion in these two hours for decades, is he really old?

Lao Luo ignored Du Ne's exclamation, "Du Lao, if you make a hundred pieces of each of these two kinds of cars, how much time do you estimate it will take?" ”

"You need to make a prototype car first, and then you have to debug, there is no shortage of materials, and if you have enough manpower, you should... It should not be more than three months. Lao Du estimated for a long time and came up with such a result.

"For three months, I still need to train the manpower of the operation, and I also need to train a lot of crossbowmen, is there enough people?"

"The vans can be in groups of ten, with ten archers each, and ten spearmen to support them, for a total of at least two thousand men, and these men should not be a problem. It depends on Li Zhang, Pei Wei's four families, and they are reluctant to send people to help. ”

"Hmph, I'm not afraid that they won't help, if the civilians have migrated back to the East, who will they rely on? Big family, huh"

"San Lang, do you mean that you are a little dissatisfied with these families?"

"It's not a dissatisfaction, I just think they're too inefficient, and they have a lot of unrealistic ideas."

"In fact, their ancestors have done a lot of things for the artisan battalion."

"Old Du, you don't have to explain to them," Lao Luo waved his hand, and then said, "I believe that in two hundred years, as long as we work together, tens of thousands of people will not be able to return to Dongtu?" To put it bluntly, isn't it the four of you who are fighting for power and profit in this pond with their own hands? ”

"Alas, there is no way, without a person who can unite people's hearts to lead everyone, it will naturally be a plate of scattered sand."

"Forget it, don't talk about it. Du Lao, when I deal with the troubles of the Georgians in the past few days, I will start to recruit people directly, you work hard to ask what the four mean, if you don't want to participate, I will take the recruited people back to the East directly, anyway, there are not so many personnel to drag down, it will be easier for me to go back. ”

"Okay, Luo Sanlang, I'll convene an elders' meeting when I go back and see if these guys want to take root in this place. But if they're going back, they'll probably ask you to talk about it in a few days. ”

"I understand, Elder Du. If you really want everyone to go back, you need to coordinate. Lao Luo breathed a sigh of relief, and finally stirred up this pool of stagnant water, not that he Lao Luo was afraid that there were not many rights and wrongs, but that the Tang people stayed here was purely a source of water and no roots, and there was no prospect of development at all, in the end, I am afraid that the only consequence would be to integrate into this place and become a minority in Central Asia, or simply be split and exterminated in the war.

sent away Du Ne, a respected civilian elder, but did not allow him to take away the drawings, because Lao Luo did not believe that secrecy could be achieved in the craftsman camp, just the performance of Pei Wei and the two families was enough to explain the problem, but fortunately, Du Ne, who was born as a civilian, also had the same opinion on this.

Lao Luo was alone in the tent, writing and drawing on paper, and his thoughts were constantly changing as the brushstrokes flew on the paper. No one can communicate with each other, so Lao Luo can only make a cameo appearance as a weapons engineer "behind closed doors".

Through the communication with Dunne, he thought that maybe he could make the plan for the return more complete, such as using the local oil to make something similar to a flamethrower, or making a ** that was projected with a bow and arrow, and these two things might be easier to deal with cavalry assaults if they were used. However, even if the flamethrower is made according to the current technology, it is difficult to have too long a range, and to meet the enemy at close range, it is inevitable that you will accidentally injure yourself, but it can be used as a city defense tool or arming tool in the future.

The ** of bow and arrow projection is a simple method, and the design of the burst weapon is not a problem for Lao Luo at all, according to the level of craftsmanship of this era, this kind of thing should not be difficult to make, and it may have a good piece killing effect. Of course, it would be nice to be able to make a simple bazooka, but there is such a thing as gunpowder, and it is inevitable that some technology will be leaked, at least he does not want to catalyze the technological evolution of this era.

Lao Luo's partial van is very much like an iron hedgehog, more fierce than the partial van used by Qi Jiguang seen in the books in later generations, the side plate is made of iron skeleton and thick wooden boards, and the outer side is also wrapped with iron sheet for fire prevention, and it is also inlaid with sharp spikes, and there is a cover plate at the top to resist the arrow throwing, and the internal standing people shoot arrows through the holes in the side panels, and there are holes at the bottom end, which are used to cooperate with spearmen to attack, this thing is almost equivalent to the armored car of the cold weapon era. It is no wonder that the well-informed Dunne asked for the details, this thing has nothing to keep secret in the grassland, because the grassland tribes do not have mature iron-smelting technology, and they will definitely not be able to do the same process, and at the same time they have a large number of horses.

Some time ago, Lao Luo sketched the drawings of the repeater and the small stone thrower, but the craftsmanship required for these two things was a bit high, and he was not sure if the craftsmen here could make them. Because the repeater he designed was a complex thing with a shoulder rest and a lookout, a multi-string, a trigger, and a replacement arrow box, which required at least the precision of standardized accessories and materials, and a small stone thrower that could be installed on the top of a partial van, and the material of the key leaf spring was also a big problem, but if this thing was made, I believe it would not be worse than a return cannon or something like that.

Maybe you can discuss it with the craftsmen in a few days, and it is not a big problem to make some adjustments according to the current process reduction requirements, and it is not a big problem to change the material or modify the structure. After all, it is not used to siege cities, the range of field catapults is 500 meters, and the weapon of piece killing can also be 300 meters.

Weapons are dead, but strategy is alive.

The only thing that matters is the rhythm of the battlefield, and if you master the rhythm, you will master the battle situation.

In the era of cold weapons, with a partial van to make a fortress on the grassland, coupled with crossbows and spears, Lao Luo did not believe that the cavalry assault alone could break the attack, if tens of thousands of people besieged it, would he only be beaten? Aside from the terrain advantage, the cavalry also had an advantage in the speed of marching. As for the partial van car will not be very convenient in the mountain and forest terrain, then the cavalry is also not suitable for the mountain and forest terrain.

At that time, the brave will win when they meet on a narrow road, and Lao Luo does not believe that anyone can stop a group of people who are eager to return to their hometown.

The coming period will be busy, integrating people to make equipment is a complicated job, and training qualified sergeants is a complicated matter, but things have already unfolded, like an arrow on the string, and it is impossible for Lao Luo to let go.

In the evening, when Lao Luo had finished sorting out his papers, there was a sound of footsteps outside the tent, and Arke, who had been investigating the details of the Duchy of Tau-Klarzhety, had returned.