"Husband, when will we come back next time?"

Princess Changle pouted, looking out the window with some unfinished eyes, obviously not wanting to leave yet.

"There's no way, the matter of steam dragging, we can't continue to delay, in the future, if we have free time, we will go to other places to play!"

Zhao Yin reached out and rubbed her head, comforting softly.

"Great!"

After hearing Zhao Yin's promise, not only Princess Changle was happy alone, but even the faces of others showed excited expressions.

On the way back, Zhao Yin really wanted to sleep with him again, but it's a pity! The tired girls, after getting into the car, all lay on the bed and fell asleep, not giving him the slightest chance at all.

What Zhao Yin didn't expect was that in the few days that Chang'an City was gone, the order of the ticket station was managed by Lao Yin in an orderly manner, and there was no need to worry about someone making trouble.

Originally, it was planned that the girls would have a good rest on the journey back, and after returning to the villa, they would have a big fight.

But what he never expected was that after the girls got out of the car, they directly ordered the guards to resist the package one by one, said hello to him, and all went back to their parents' house!

When they visited this time, they did not forget to bring back some Luoyang specialties for their parents and relatives at home.

Despite their position in the family, it is impossible for them to be missing from the family.

But their actions undoubtedly show that they are all filial children.

Zhao Yin naturally couldn't disagree, so he could only watch them leave, and he led the guards directly to the general prison.

……

"Master Pony, are you back?"

After seeing Zhao Yin, Lin Wu hurriedly put down the work at hand and ran over.

"Well, just got off the train, how's that? Can the parts of the tractor be machined? ”

Zhao Yin nodded slightly.

"Everything is ready, we have started to try to assemble, just wait for you to come back and check it!"

With experience with steam engines, these craftsmen already started assembling the parts as soon as they were finished.

"Yes, take this pony to see it."

Zhao Yin immediately became interested.

Although it was just a tractor, it made him even more excited than owning a car in later generations.

The technology can be explored slowly, the tractor can be completed, and the car of the future will not be far away.

"Look, you've assembled it, but I don't know if there's anything wrong with it."

Lin Wu smiled wryly, I don't know if the horse master will blame himself for such a self-asserted thing.

"Now that it's done, have you tried it?"

Zhao Yin was a little surprised.

Unexpectedly, when they were assembling the steam engine, they encountered great difficulties, but the assembly of the tractor would be completed so quickly.

"This is completely dependent on the drawings of the horse master, without their existence, even if we break our heads to think, it is impossible to come up with such a wonderful thing."

Lin Wu smiled a little embarrassedly and said, he was not modest, but admired from the bottom of his heart.

"Have you tried it?"

Zhao Yin waved his hand, he was very uninterested in these flattering words.

"That...... It's not that we don't want to try, it's that the craftsmen don't know how to use this thing! ”

Lin Wu looked at Zhao Yin very embarrassed, and finally simply cried with a sad face, spread his hands, and expressed helplessness.

"I see, then this horse will personally demonstrate, and it just so happens that there is nothing to do now!"

After hearing his words, Zhao Yin suddenly realized.

Tractors were first introduced in Datang, and before that, they were all carriages, which could be controlled as long as they held a horsewhip, but tractors didn't eat that set.

Fortunately, he is an old driver in later generations, even if he has never driven an agricultural machine, but in terms of theoretical content, agricultural machinery and cars are nothing more than the same thing, he really doesn't believe that he will not be able to do it!

Although this first-generation steam tractor is huge and looks clumsy, Zhao Yin knows that Rao is a thing that has long been eliminated in later generations, and its horsepower is not comparable to the current Datang horses and scalpers.

"Later, I'll let people prepare."

Hearing that the master of the horse was going to do it himself, Lin Wu's eyes suddenly lit up, and he hurriedly ordered someone to prepare.

When it comes to preparation, in fact, it is just some combustibles, wood and coal.

"By the way, are you ready for the plow that this pony asked you to build?"

If you want the machine to work, it is definitely not a short time, after all, it is absolutely impossible for the steam engine to work without reaching a certain temperature.

"I've been ready for a long time, I'll have someone carry it over."

It was a fairly simple thing for them to build a plow, even if it was an iron plough that was all joined together with steel.

After the drawings were brought, it took only three days for the plow to be completed, and it had been placed in the corner, and it was not until today that Zhao Yin mentioned it, and Lin Wu recalled that there was still such a thing that had not been installed.

"Master Horse, are you planning to use a tractor to plow the land?"

Under Zhao Yin's guidance, the iron plow was installed behind the tractor, and Lin Wu couldn't help but ask.

If an iron plough of this weight were to sink into the dirt, it would take so much force to pull it, and I am afraid that it would not be an exaggeration to say that four or five fierce horses were to be pulled!

"Of course, the use of tractors in agriculture is definitely a tiger with wings."

Zhao Yin said confidently.

Once the steam tractor is successfully invented, then the agriculture of the Tang Dynasty will undergo earth-shaking changes, and the people will no longer have to worry about ploughing the land.

As the temperature at the bottom of the steam engine rises, the whistling sound of exhaust gradually comes from the exhaust pipe.

Zhao Yin got on the tractor directly in a few steps, sat down, and fiddled with the gear casually, and suddenly a familiar feeling arose.

"Master Pony, will you do this? There won't be any danger, right? ”

Seeing Zhao Yin sitting on it like Mount Tai, Lin Wu couldn't help but worry, in case the horse master made a mistake, his head would not be saved.

"It's a small matter, add fire."

Shifting the gear to neutral, he stepped on the accelerator and brake again, and found that there was nothing out of the ordinary, so he ordered the firefighters again.

The craftsman did not dare to slack off, and hurriedly filled it with firewood and coal.

After another quarter of an hour or so, the water in the steam engine finally boiled, and the sound of exhaust in the exhaust pipe became more rapid.

Seeing this scene, Zhao Yin stepped on the clutch and quickly hung up the first gear, the tractor suddenly roared, and the iron wheel wrapped in eucommia glue also moved forward slowly.

"Moved...... Moved...... It worked! ”

Seeing this scene, all the craftsmen couldn't help but cheer.

At this moment, all the fatigue is gone!

What could be happier than seeing the results of your research?

Slowly driving out of the crowd, Zhao Yin skillfully changed to the second gear, and suddenly, the speed of the tractor was raised again.

Then, the third and fourth gears, although the speed is not very fast, can reach about 20 miles, but this is also much faster than the speed of the carriage.

Lin Wu and the others were afraid that Zhao Yin would have an accident, so they didn't dare to stop, and they all followed behind one by one.