The initial test of the steam locomotive did not last long. Yang Cong just drove around the railway around Yuyuantan and stopped work.

When parking, he also found a problem, that is, such a big thing has a very large inertia. If you don’t have a brake, even if you open it to the slowest speed and then turn off all valves, you still have to slide for a long distance before you stop.

This will definitely not work. If there is a problem with the previous track and you can't stop even if you want to stop, something will happen.

Therefore, the brake must be added, otherwise, even if you enter the station and park, it will be a troublesome.

Although this steam locomotive also has the problem of speed adjustment and parking brake, it is already a sensational enough for such a big guy to run by himself without pushing or pulling. Everyone who came to watch was shocked. After returning, they naturally brag desperately.

Yang Cong's reputation became even more resounding, and the name of "Fire Dragon Car" spread like wildfire. This "Fire Dragon Car" was not actually taken by Yang Cong. It was just that this thing looked like a faucet and could spray out blue smoke. The onlookers unknowingly gave this name.

How to say this name? It will naturally make people laugh at later generations, but it is quite good now. Yang Cong did not deliberately deny it or say that he would change it. The Fire Dragon Car is just the Fire Dragon Car, at least it is not the color of the Ming Dynasty.

Unexpectedly, the name of the Fire Dragon Car was really spread too quickly. He had not solved the problem of brake and speed adjustment. Jiajing actually sent someone to pass on the message to see the legendary Fire Dragon Car.

The emperor wanted to see something, but he naturally could not refuse as a minister. Yang Cong could only delay for a while in the name of preparing the venue. After the brake and speed adjustment valves were installed and the test was completed, he sent someone to tell Jiajing that the emperor had prepared the venue and welcomed him at any time if the emperor wanted to come.

He did prepare the venue by the way. He ordered people to set up a huge shed next to the railway, just like a station, filled with flowers and colorful flags, and wait for the Jiajing emperor to arrive in person.

Early that morning, around the hour of the year, Jiajing ended the morning court early, and then led a group of important officials of the court and the imperial guards to drive towards Yuyuantan.

This emperor's patrol was a big deal, especially when he came to a minister's place to inspect. Yang Cong naturally went out for more than ten miles and waited directly at the city gate.

A group of thousands of people walked like a turtle speed for about an hour, and finally arrived at the awning outside the School of Physics. When Jiajing saw the spectacular fire dragon car, he immediately became interested. He ignored the dissuasion of the ministers and ran down from the dragon chariot, circled around the fire dragon car several times, and even had to climb onto the car to visit.

Well, the front of the car is filled with firewood and stove, which is really not very clean, and there is no space on it. With such a big show as Jiajing, there is no way to go up without dozens of imperial guards in the front line, so Yang Cong could only persuade Jiajing to the platform specially built for him under the awning.

This time, Yang Cong naturally couldn't drive. After all, he was the master. When the emperor came, he had to accompany him. The driving task was handed over to Wang Xuan.

After Jiajing sat down, he asked with interest: "Qingfeng, can such a huge Fire Dragon Car really run on the road by itself?"

Yang Cong nodded without hesitation and said, "Of course, how dare I deceive the emperor? Weichen has tried this fire dragon chariot himself and can indeed run by himself."

Upon hearing this, Jiajing couldn't help but raise his hand and said, "Okay, run quickly and let me see."

Yang Cong quickly made a gesture to signal Wang Xuan in the carriage to drive.

Woo….”

A majestic and distant whistle sounded again. In Jiajing's shocked gaze, the Fire Dragon Car slowly started and slowly drove out of the awning.

At the beginning, the speed of the Fire Dragon Car was not very fast, so Jiajing could still see it, but as the speed of the Fire Dragon Car accelerated, it disappeared in the eyes of everyone and disappeared.

Damn, oh no, I'm down!

I ran so far and saw that I had no time to watch it after less than a cup of tea?

Jiajing couldn't help but look at Yang Cong in amazement, and said with unsatisfactory words: "Is that over?"

Yang Cong quickly explained: "No, this railway is just a circle. It won't take long to drive from there."

Upon hearing this, Jiajing turned his head and looked at the other side. However, he looked for a while but still could not see the shadow of the Fire Dragon Car.

He couldn't help but say curiously: "Where is the Fire Dragon Car? Why haven't you come here after so long?"

Yang Cong said awkwardly: "Your Majesty, this railway is more than ten miles in a circle. At the speed of the Fire Dragon Car, it takes about a quarter of an hour to make a circle. Please wait a moment, wait."

One quarter of an hour, more than ten miles!

Isn't this as fast as a galloping horse?

Jiajing couldn't help but say in surprise: "It turns out that the rumors are true. The fire dragon car runs at the same speed as a galloping horse!"

Yang Cong couldn't help but say with a slight pride: "This Fire Dragon Car can actually run faster, but it's a bit dangerous to run too fast, so Weichen just lets it jog slowly at the speed of a galloping horse, so there is no danger."

Upon hearing this, Jiajing couldn't help but say curiously: "Oh, how fast can the Fire Dragon Car run the fastest?"

How to describe this?

Now, the speed of this steam locomotive is about twenty kilometers per hour, that is, forty kilometers per hour. It can run about a thousand miles in twelve hours a day. If the thrust is increased, it is not impossible to thirty kilometers or even forty kilometers per hour.

Yang Cong estimated: "If you run with all your strength, I guess it is possible to travel two thousand miles a day."

So fast!

Wouldn't that mean that you can arrive at Chengtian Mansion in one day when you start from the capital!

Jiajing said in a bit willful manner: "Then why don't you let this Fire Dragon Car run with all your might?"

Yang Cong resisted the urge to roll his eyes and explained patiently: "Weichen is afraid that he can't control himself by running too fast, and he will be in trouble if he bumps into someone or runs out of the track."

Upon hearing this, Jiajing said with regret: "Oh, that's a bit of a pity."

As the two of them were talking, a whistle sound had already been heard on the other side, and the Fire Dragon Car was really coming from the other direction.

Jiajing didn't need Yang Cong to remind him, so he turned his head and looked forward to it.

Sure enough, in a short while, the Fire Dragon Car roared and appeared in everyone's sight. However, soon, the Fire Dragon Car roared by again and disappeared in everyone's sight.

Jiajing still said with some conscience: "Hurry, so fast, this fire dragon car runs so fast. If I get on this fire dragon car, I will be able to arrive at Chengtian Mansion in two days, right?"

Yang Cong said with a slight pride: "That's natural. This fire dragon car consumes firewood and there is no such thing as fatigue. It's enough to run day and night. It's enough to arrive at Chengtian Mansion in two days."

Upon hearing this, Jiajing couldn't help but say with hope: "Qingfeng, when will you be ready? I want to go back to Chengtian Mansion as soon as possible. My mother has passed away for several years, and I haven't returned to see her yet."

It turned out that Jiajing was so eager to return to Chengtian Mansion not for himself, but for his mother to go back and be filial. Yang Cong couldn't help but feel moved when he heard this.

Although there are many mistakes in Jiajing, Xiao Zhidao did a good job. For the posthumous title of his parents, he even fought with important officials of the court, revised the etiquette and law, and insisted on posthumously giving his father the emperor and named his mother the Queen Mother.

His filial piety is indeed touching, but this railway cannot be repaired just by practicing it. It is more than two thousand miles away, so how long does it take to practice it?

Yang Cong could only say helplessly: "Your Majesty, this Fire Dragon Car must be run on the railway, and it will take at least two years to build the railway to Chengtian Mansion."

Two years?

Jiajing thought it was a bit long, but Yang Cong thought it was very tight. If he hadn't known that Jiajing was an impatient person, he wouldn't have made a promise for the past two years.
Chapter completed!